SIGMA

LED STREET LANTERN

Optimizing Your City with Intelligent

Real-Time Monitoring Anytime Anywhere
 SMARTFLEXIBLE
With iLCS® built-in remote control management system, it
iLCS® built-in remote control gives flexibility for municipalities, city planners and operators
management system to optimize and monitoring luminaires individually or in
group remotely from a computer or smartphone. As smart
as it is, operators are able to obtain and manage useful data
effectively. (e.g., energy consumption, air quality of the outdoor
Data Control Unit (DCU)
environments and traffic data to manage daily city’s traffic flow
The DCU monitors, controls and congestion). By using these important data, they can alert
and manages all connected and alarm the citizen with better route planning.
LCUs. It also functions as the
gateway for the connected The DCU monitors, controls and manage all connected LCUs.
LCUs to the IT world.
It functions as the gateway to the IT world. Each node (LCU
NEMA) of the network is embedded with a GPS receiver and an
astronomic clock. This enables the node, when it is completely
isolated (standalone) or the network is under maintenance, it
will follows the profile that has been previously programmed.
Moreover, the enclosure is made semi-transparent to allow an
embedded photocell to sense daylight intensity to autonomously
turn on the luminaire.

Cloud Vision
Cloud based platform for real time
control of luminaires, real time
monitoring of load and lighting levels.

Light Control Unit

(LCU NEMA)
is installed onto smart street lantern
to establish a smart city neural
infrastructure network.
 UNIQUE ADVANTAGES

3. Heat Management
• Aerodynamic Design
• Water Trap Free Design
• Excellent Heat Dissipation
• Ensures Long System Lifetime

4. Weatherproof Sealant
• Silicone Foam Material Gasket
Provides Durable Protection at
Outdoor Environment

5. Sensor Accessory
• ANSI C136.41 Compliant
Dimming Receptacle
(Compatible with Light Control
Unit - LCU and NEMA Photocell)
• Compact Fitting Size with
Smart Features

1. Housing 6. Easy Maintenance

• High Corrosive Resistant Die-Cast • Top Access Gear Compartment
Aluminium Material that Isolated the Light Engine
• Outdoor Polyester Epoxy Powder and Gear Compartment
Coating • Tool-less Entry
• Come with 2 Housing Sizes
• Lightweight Fitting Design
• Ensure Long Fixture Durability

2. Optical Versatility 7. Mechanical Design

• Multi Types of Lighting Distributions to • Unique Spigot Mounting with
Fullfill Most Applications +15° to -15° Tilting Adjustment
• High Quality Lens with 94% Efficiency • Post Top / Side Entry of
• Excellent System Efficacy ≥140 lm/W Ø48 / Ø60mm
• Frameless Tempered Glass Cover

MEASUREMENT & ORDER CODE

CARTON DIMENSION
WATTAGE ORDER CODE NO. OF LEDS LUMEN TYPICAL WATTAGE NETT WEIGHT
(L x W x H) mm

60W SIGMA - M 60W 32 8400 60 610 x 340 x 215 6.90 kg

90W SIGMA - M 90W 48 12800 90 610 x 340 x 215 6.90 kg
120W SIGMA - M 120W 72 17460 120 610 x 340 x 215 6.90 kg
150W SIGMA - M 150W 72 21385 150 610 x 340 x 215 6.90 kg
180W SIGMA - L 180W 96 25710 180 670 x 375 x 225 7.70 kg
200W SIGMA - L 200W 96 29650 200 670 x 375 x 225 7.70 kg

* All result tested base on 4000K CCT LEDs.

TECHNICAL SPECIFICATION

LUMINAIRE TECHNICAL DATA COMPLIANCE

• System Power : 60W • LED : Performance - LM80

: 90W : Safety - UL
: 120W : Environmental - RoHS
: 150W
: 180W • LED DRIVER : Electromagnetic
: 200W Compatibility (EMC) -
• Enclosure Material : Die Cast Aluminium EN55015, IEC/EN61000
• Optical Cover : 95% Transparency Tempered Glass IEC/EN61547, IEC CISPR
• Gasket Material : Silicone Foam : Safety - IEC/EN61347,
• Fitting Color : Dark Grey, Akzo Nobel 300AS EN62384
: Durable Polyester Epoxy
Powder Coating
• Operating Temperature : -30 ~ +50°C • LUMINAIRE : Safety - IEC60598-1,
• Input Voltage : 220 ~ 240 Vac 50 / 60 Hz IEC60598-2-3, IEC62471,
• Power Factor : >0.9 IEC62031
• Surge Protection Device : 20kV, 25kA : Electromagnetic
(SPD) Compatibility (EMC) -
• Insulation Classification : Class I IEC62471, IEC61000,
• Ingress Protection : IP66 IEC61547, IEC62493
• Impact Protection : IK08 : Performance - LM79,
• Spigot Mounting : 0°-15° Tilting IEC62722
: Ø60mm Post Top / Side Entry
(Standard) • SPD : Safety - IEC61643-11
: Ø48mm Post Top / Side Entry
(Upon Request)

iLCS LCU LED MODULE SPECIFICATION

• Operating Voltage : 100 ~ 305 Vac @ 50 / 60Hz • LED Source : 5050

• Idle Consumption : < 1W • CCT : 3000K Warm White
• Overvoltage, Overload and Thermal Protection : 4000K Neutral White
• Short-Circuit and Open-Circuit Protection (Other CCT Upon Request)
• Autonomous Operation Redundancy • Lumen : ≥140 lm / Watt
• Antenna Integrated • CRI : Min 70
• Metering Embedded • L70 : 100,000 Hrs @ 25°C
• GPS Embedded • PCB Material : Metal Core (UL Certified)
• Photocell Embedded • Lens (94% Efficiency) : Type II
• Dimming Interface : 0-10V : Type III
• Ingress Protection : IP66
• Analog Input Availability : 0-30V

APPLICATION SIGMA- M APPLICATION SIGMA- L

• Pathways • Pedestrian Areas

• Car Parks • Residential Areas
• Foot Paths • Rural Roads
• Access Ways • Urban Roads
• Parks • Expressway Lightings
• Road Lightings
• Residential Areas
• Pedestrian Areas
DIMENSION

SIGMA-M-Side Entry SIGMA-L-Side Entry Light Control Unit

SIGMA-M-Post Top SIGMA-L-Post Top

PHOTOMETRIC

Type II Type III

Note: All specifications are subject to change without prior notice for product improvement. Images, pictures and illustrations used are for illustrative purposes only
and the color printed may differ from the actual product.
HEADQUARTERS, MALAYSIA GLOBAL NETWORKS
SUCCESS ELECTRONICS & TRANSFORMER Singapore Thailand
MANUFACTURER SDN. BHD. NIKKON LIGHTING & ELECTRICAL PTE. LTD. NIKKON LIGHTING (THAILAND)
No. 3,5 & 7, Jalan TSB 8, No. 7, Kaki Bukit Road 1, CO., LTD.
Taman Industri Sungai Buloh, #03-15 Eunos Technolink, No. 555, Floor 4, Room No 403,
47000 Sungai Buloh, Selangor 415937 Singapore Moo.13, Bangkaew Subdistrict,
Tel : +65 67 42 4377 Bangplee District,
Hotline within Malaysia: 1 300 88 2788 Fax : +65 67 42 4366 Samutprakarn Province,
Tel : +603 6279 2800 Email : enquiry@nikkonlighting.com.sg 10540 Thailand
Fax : +603 6157 2722 / 2723 Website: www.nikkonlighting.com.sg Tel : (66-2) 631 2066
Website: www.success.com.my Fax : (66-2) 631 2990
Indonesia Email : export@success.com.my
www.nikkonlighting.com
PT BOXON NIKKON JAYAINDO Website: www.nikkonlighting.co.th
Sales Enquiry Jalan Agung Perkasa 8 Blok K1,
Domestic: marketing@success.com.my No. 40 Sunter, Jakarta Utara,
Overseas: export@success.com.my 14350 Indonesia
Tel : +62 21 2907 0438
Fax : +62 21 2907 0439
Email : marketing@nikkonlighting.co.id
Website: www.nikkonlighting.co.id

Most Innovative Product Award Most Innovative Product Award Participation Award
www.nikkonlighting.com by Australian Smart Lighting Summit 2018 by Middle East Lighting Design Summit 2018 by Abu Dhabi Smart City Summit 2019

is a registered trademark of Success Electronics & Transformer Manufacturer Sdn. Bhd. (SUCCESS) in Malaysia and other countries. SUCCESS is a private limited
company wholly owned by Success Transformer Corporation Berhad (STC). The company is incorporated in Malaysia with business registration number 200853-K since 1980.
SUCCESS is focusing in design, fabricate and distribute of lighting, transformer & electrical equipment and having its principal place of business at No. 3, 5 & 7, Jalan TSB 8,
Taman Industri Sungai Buloh, 47000 Sungai Buloh, Selangor Darul Ehsan, West Malaysia. Company website: www.success.com.my / Corporate website: www.stcgroup.com.my.
© 2021 Success Electronics & Transformer Manufacturer Sdn. Bhd. All Rights Reserved.
 SIRIM QAS International Sdn. Bhd.
(Company No.: 199601037981 (410334-X))
No.1, Persiaran Dato' Menteri, P.O.BOX 7035, Section 2,
40700 Shah Alam, Selangor Darul Ehsan, Malaysia
Tel: 03-55446268
Fax: 03-55446796 SAMM 086
www.sirim-qas.com.my

TEST REPORT
REPORT NO : 2022EB0188 PAGE : 1 OF 67
This Test Report refers only to samples submitted by the applicant to SIRIM QAS International Sdn. Bhd. and tested by SIRIM QAS
International Sdn. Bhd. This Test Report shall not be reproduced, except in full and shall not be used for any purpose by any means or
forms (including but not limited to advertising purposes) without written approval from the Head of Quality, Occupational Safety and Health
& Environment (QOSHE), SIRIM QAS International Sdn. Bhd. Please refer to the last page of this Test Report for Conditions Relating to
the Use of Test Report.

THIS TEST REPORT IS ISSUED IN SECURED PDF SOFTCOPY

Applicant : Success Electronics & Transformer Manufacturer Sdn. Bhd.,

No. 3, 5 & 7, Jalan TSB 8, Taman Industri Sungai Buloh,
47000 Sungai Buloh, Selangor, MALAYSIA.

Manufacturer : Success Electronics & Transformer Manufacturer Sdn. Bhd.,

No. 3, 5 & 7, Jalan TSB 8, Taman Industri Sungai Buloh,
47000 Sungai Buloh, Selangor, MALAYSIA.

Product : LED Luminaires for Road and Street Lighting

Reference Standard / : MS IEC 60598-2-3: 2006
Method of Test MS IEC 60598-1: 2012
Description of sample : Brand Name : NIKKON
Model / Type : See page 2
Rating :
Voltage : 220~240 V~
Frequency : 50/60 Hz
Wattage : See page 2
IP Rating : IP 66
Date Received of : 23 June 2021
Complete Application
Job No. : J20212120252
Description of Test : COMPLIED (See page 3 for details)
Results
Issued Date : 15 April 2022

Approved Signatory;

...................................................... ......................................................
(ABDUL HADI BIN ABDUL RANI) (SHARIFAH BINTI JUSOH)
Testing Executive Head
Electrical & Electronics 2 Section
Testing Services Department
 REPORT NO : 2022EB0188 PAGE : 2 OF 67
This Test Report refers only to samples submitted by the applicant to SIRIM QAS International Sdn. Bhd. and tested by SIRIM QAS
International Sdn. Bhd. This Test Report shall not be reproduced, except in full and shall not be used for any purpose by any means or forms
(including but not limited to advertising purposes) without written approval from the Head of Quality, Occupational Safety and Health &
Environment (QOSHE), SIRIM QAS International Sdn. Bhd. Please refer to the last page of this Test Report for Conditions Relating to the
Use of Test Report.

SUMMARY OF TESTS:

1. This is a type test report as requested by applicant.

2. This test report covers 6 models of LED luminaires for road and street lighting as below:
No. of LED
No Model Rating
package
1. SIGMA-L 200W 220~240 V~, 50/60 Hz, 200 W, 0.85 A Max, 96 pcs
PF >0.90, IP 66, ta 50 C
2. SIGMA-L 180W 220~240 V~, 50/60 Hz, 180 W, 0.75 A Max, 96pcs
PF >0.90, IP 66, ta 50 C
3. SIGMA-M 150W 220~240 V~, 50/60 Hz, 150 W, 0.65 A Max, 72 pcs
PF >0.90, IP 66, ta 50 C
4. SIGMA-M 120W 220~240 V~, 50/60 Hz, 120 W, 0.50 A Max, 72 pcs
PF >0.90, IP 66, ta 50 C
5. SIGMA-M 90W 220~240 V~, 50/60 Hz, 90 W, 0.40 A Max, 48 pcs
PF >0.90, IP 66, ta 50 C
6. SIGMA-M 60W 220~240 V~, 50/60 Hz, 60 W, 0.30 A Max, 32 pcs
PF >0.90, IP 66, ta 50 C

3. All the models are similar in electrical design except the rating and number of LED package as
declared by applicant. All models have correlated colour temperature (CCT) 3000 K, 4000 K and
5000 K.

4. All the tests were carried out on luminaire sample for model/type SIGMA-L 200W with CCT 3000K
which having the highest power rating as representative of the other model(s), unless otherwise
specified. Test for clause 3.12 of MS IEC 60598-2-3:2006 also verified on model SIGMA-M 60W
with CCT 3000K.

5. All the tests were carried out at ambient temperature of 25  5 C and at voltage/frequency of
240 V~/50 Hz, unless otherwise specified.

6. The clause numbers between brackets refer to clauses in MS IEC 60598-1.

7. Verification tests of MS IEC 62031: 2011 were conducted on LED module which used in luminaire,
see Annex 5.

8. All the tests were conducted at SIRIM QAS International Sdn Bhd test laboratory.

9. All the tests conducted according to MS IEC 60598-2-3:2006 as described in this test report only
cover safety requirement of the test sample. The compliance of photometric info is not part of this
test report.
 REPORT NO : 2022EB0188 PAGE : 3 OF 67
This Test Report refers only to samples submitted by the applicant to SIRIM QAS International Sdn. Bhd. and tested by SIRIM QAS
International Sdn. Bhd. This Test Report shall not be reproduced, except in full and shall not be used for any purpose by any means or forms
(including but not limited to advertising purposes) without written approval from the Head of Quality, Occupational Safety and Health &
Environment (QOSHE), SIRIM QAS International Sdn. Bhd. Please refer to the last page of this Test Report for Conditions Relating to the
Use of Test Report.

10. The abbreviation used in this test report denotes as follows;

Pass : Complied with the requirement
Fail : Not complied with the requirement
NA : Not applicable with the requirement
NC : Not conducted

SUMMARY OF RESULT/S:

The test results for the submitted test samples as described in this test report complied with the
requirements of MS IEC 60598-2-3: 2006 used in conjunction with MS IEC 60598-1: 2012, for those
tests which were conducted.

Simple Acceptance Rule is used for the conformity statement. The level of risk regarding the Probability
of False Accept is up to 50%.

ADDITIONAL INFORMATION:

1. Tested by : Hazrin Hashim

2. Checked by : Abdul Hadi Abdul Rani

3. Date of test item(s) received;

a) 1st submission : 23 JUNE 2021
b) 2nd submission : 28 OCTOBER 2021 (Samples)
c) 3rd submission : 28 FEBRUARY 2022 (Revised marking)
d) 4th submission : 22 MARCH 2022 (Revised catalogue)
e) 5th submission : 31 MARCH 2022 (Certificate of component)
f) 6th submission : 06 APRIL 2022 (Declaration of current setting)

4. Date of test performed : 29 OCTOBER 2021 – 12 APRIL 2022

5. Product information:

a) Some models use similar components in design such as LED modules and adjustable LED
drives, except different on the current setting. The current adjusted based on the type of
product power rating as declared by manufacturer as follows.
No LED driver Model Wattage Current setting

LDP-200M305 0.3-1.05A SIGMA-L 200W 200 W 695 mA

i.
IP67 WL SIGMA-L 180W 180 W 630 mA

LDP 150W 0.3-1.05A SIGMA-M 150W 150 W 695 mA

ii.
IP67 WL SIGMA-M 120W 120 W 550 mA
 Lighting

GreenVision Xceed
Gen2
BRP388 LED242/WW 180W 220-240V DM PSR P7
Sustainability, citizen well-being and connectivity are key players in the game of
differentiation among cities all over the world. And a way of achieving these goals is
lighting;Lighting up streets and roads enhance the comfort, security and overall
safety of our rapidly growing urban environments. Our GreenVision Xceed Gen2
makes an affordable LED road lighting solution that ensures sufficient light on your
roads and streets;The GreenVision Xceed Gen2 family from Signify provides your
city with a flexible lighting system which can be deployed anywhere in urban
spaces, roadways and rural areas – our luminaires provide optimal light for all
application areas. Additionally, the GreenVision Xceed Gen2 is ready to be
connected to, and work with, smart city ecosystems;Our new GreenVision Xceed
Gen2 range is enhanced to give city lighting departments even more control – to
choose the right light

Product data

General Information Constant light output No

Lamp colour code 730 warm white

Light source replaceable No Operating and Electrical

Driver/power unit/transformer PSR [ Power supply unit regulating] Input Voltage 220 to 240 V

Driver included Yes Input frequency 50 or 60 Hz

Optical cover/lens type PC-MLO [ Polycarbonate micro lens optic] Power factor (min.) 0.9

Control interface Analog

Connection No [ -] Controls and Dimming

Cable - Dimmable Yes

Protection class IEC Safety class I (I) Telemetry Socket NEMA 7-Pins
CE mark CE mark Mechanical and Housing
Warranty period 3 years Housing material Aluminum die–cast

Optic material Polycarbonate

Datasheet, 2020, September 11 data subject to change

GreenVision Xceed Gen2

Optical cover/lens material Glass Over Time Performance (IEC Compliant)

Fixation material Aluminium Median useful life L70B50 100000 h

Overall length 736 mm

Overall width 314 mm Application Conditions

Overall height 138 mm Ambient temperature range -40 to +50 °C

Colour Grey Maximum dimming level 10%

Approval and Application Product Data

Ingress protection code IP66 [ Dust penetration-protected, jet-proof] Full product code 919047301116

Mech. impact protection code IK08 [ 5 J vandal-protected] Order product name BRP388 LED242/WW 180W 220-240V DM PSR P7

Order code 919047301116

Initial Performance (IEC Compliant) Numerator – quantity per pack 1

Initial luminous flux 24200 lm SAP numerator – packs per outer box 1

Luminous flux tolerance +/-10% Material no. (12 NC) 919047301116

Initial LED luminaire efficacy 133 lm/W SAP net weight (piece) 7 kg

Lamp colour temperature 3000 K

Colour Rendering Index >70

Initial input power 180 W

Power consumption tolerance +/-10%

Dimensional drawing
237

507 310

BRP388

© 2020 Signify Holding All rights reserved. Signify does not give any representation or warranty as to the accuracy or

completeness of the information included herein and shall not be liable for any action in reliance thereon. The

information presented in this document is not intended as any commercial offer and does not form part of any

quotation or contract, unless otherwise agreed by Signify. Philips and the Philips Shield Emblem are registered www.lighting.philips.com

trademarks of Koninklijke Philips N.V. 2020, September 11 - data subject to change

LEDSTREETLI
GHT
STANDARD

SMART

Shor
ti
ngCap

SmartLamp
Cont
rol
ler(
Opt
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1
00mm
(
Deep)

s
ales
@ieco.
biz
+606-3365696
+01
6-7715697
CHINT No EN B31

Europe
Italy West Asia & Africa
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U.A.E
Add: Via A. Pacinotti 28, 30033 Noale (VE)
Tel: +39 041 446614 CHINT MIDDLE EAST AND AFRICA DMCC
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Czech Republic Tel: +97145571532
P.O BOX :337555
NOARK Electric Europe s.r.o. Email: chintwaa@chint.com
Add: Sezemická 2757/2, 193 00 Prague 9
Tel: +420 226 203 120 Email: Europe@noark-electric.com Egypt
CHINT Electrics (Egypt) Co., Ltd.
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Tel: +20 1097173769
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E-mail: marie.casillas@chint-mexico.com Company: - +91 1202975057 E-mail: marketing@chint.co.in

Zhejiang Chint Electrics Co., Ltd.

Add: No. 1, CHINT Road, CHINT Industrial Zone, North Baixiang,
Yueqing, Zhejiang, 325603, P.R.China
Tel: 4001177797
Fax: +86-577-62775769 62871811
E-mail: global-sales@chint.com
Website: http://en.chint.com/ 2020

CHINT Electric All Rights Reserved Recycle Paper Printed

Specifications and technical data are subject to change without notice.
Please contact us to confirm relevant information on ordering
NM8N
Moulded Case Circuit Breaker
 CHINT is a world renowned smart energy solution provider.
To comply with the trend of integrated development of modern energy, intelligent manufacturing and digital technology, CHINT has
adopted One Cloud & Two Nets as the development strategy. As the carrier of intelligent technology and data application, CHINT Cloud
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Focusing on energy supply, storage, transmission, allotment and consumption system, CHINT considers new energy, energy allotment,
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Founded in 1984, CHINT has developed business network in er-focused, innovation, humble learning, integrity, collaboration,
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CHINT Cloud CHINT EIoT CHINT IIoT
The carrier of intelligent technology and A user-driven multi-energy complemen- An intelligent manufacturing system
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internal manufacturing and business the public institutions, industry & transformation, building and developing
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Manufacturing
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the carrier of intelligent Industry

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Management application
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Data Transmission Data Transmission

User-driven multi-energy Intelligent manufacturing

Providing intelligent product application
complementary system focusing on the
intelligent energy system Driving technological development enterprise digital transformation
through business
Energy Storage
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Public Institutions
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PV Plant Intelligent Logistics

Industrial Rail Transit Intelligent
Users
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Storage Equipment Intelligent Terminals
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A user-driven multi-energy complementary intelligent energy system, providing the public institutions, industry &
commerce and terminal users with a package of energy solutions.

Providing owners with Providing owners with

the integrated energy solutions the integrated energy solutions

Public Institutions Power Companies

Providing a package of energy solutions for core users

Energy Supply Energy Consumption

New energy Energy Value-added
Photovoltaic Equipment Service
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Power Transmission and Low-voltage Apparatus
Distribution Equipment

Big Data
Software Development
Control Automation
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One of 94 new intelligent manufacturing mode application projects made public in 2015

——in Hangzhou

—— in Haining

——in Wenzhou
 3 global R&D centers : 20 overseas subsidiaries
16 marketing offices in China
6 worldwide marketing areas :
Asia Pacific Western Asia and Africa Europe Latin America 32 international logistics centers
North America China
2300 sales companies
13 manufacturing bases :
China (Wenzhou, Shanghai, Hangzhou, Jiaxing, Xianyang, Jiuquan, Jinan),
Thailand, Egypt, Singapore, Vietnam, Malaysia, Algeria (production line)

Moscow Russia
Germany
Prague
Spain Venice
Madrid

Turkey
US
Los Angeles
Dubai Jiuquan
Xianyang
Jinan
Hangzhou Shanghai
Dubai Jiaxing
Mexico
Wenzhou

India Thailand
Vietnam

Xianyang
Singapore

Peru
Brazil

Global R&D Centers

Sao Paulo

International Marketing Areas

Manufacturing Bases
Logistics Centers

Industry Headquarters
Logistics Centers
Marketing Offices

Hangzhou

Wenzhou
Taiwan
Island
Hong Kong
Macao Dongsha Islands

Hainan Island
Xiasha Islands
Yongxing Island
Zhongsha Islands
Huangyan Island
S ea
h in a

ds
C

an
Is l
South

ha
ns
Na

James Shoal
Comprehensive Strength Quality Management
2015, top 100 enterprises in China machinery industry 2016, advanced unit and user-satisfied enterprise in national
2016, top 100 enterprises of Zhejiang Province user satisfaction project
2017, ranking the 85th place among top 500 China private 2016, executive director unit of Asia Quality Function
enterprises Development Association
2017, innovative leading enterprise of Zhejiang Province 2017, quality good faith enterprise of China machinery industry
2017, top 100 enterprises in innovation capacity among 2017, national product and service quality good faith
the national hi-tech enterprises of Zhejiang Province demonstration enterprise

Independent Innovation Social Responsibilities

2015, Science and Technology Award of China 2014, five-star enterprise of China industry sector in performing
Electrotechnical Society social responsibilities
2016, Golden Patent Prize of Zhejiang Province and Patent 2016, National Enterprise of Observing Contract and Valuing
Recognition Award of Zhejiang Province for two serial products Credit
2016, national intellectual property demonstration enterprise 2017, credit management demonstration enterprise of Zhejiang
2016, group member of China Intellectual Property Society Province
2016, member of Global Energy Interconnection Development 2018, the 10th “China Charity Award” of the Ministry of Civil
and Cooperation Organization Affairs

The products have been accredited through China

Compulsory Certification (CCC) as well as UL of US, CE of EU,
VDE and TÜV of Germany, EAC of Russia, KEMA of Nether-
lands, RCM of Australia, RCC of South Africa and other interna-
tional product certifications.
NM8N Moulded Case Circuit Breaker

1 Body

2 Thermo magnetic release

3 Electronic release

4 Communication module

5 Cell box

6 Cable connector

7 Front connection plate

8 Rear connection plate

22
9 Cage clamp terminal

10 Residual current protection module

21

11 Long terminal cover

20

12 Short terminal cover

13 Direct rotary handle 19 18

17
14 Economic extended rotary handle

15 Extended rotary handle

16 Motor driven operating mechanism

17 Mechanical interlock
16

18 Locking system

19 Closing electromagnet
15

20 Under-voltage release

21 Shunt release

22 Alarm contact

23 Auxiliary contact

24 Interphase barrier
14
13
25 Plug-in base

26 Draw-out base

27 DIN rail adaptor

28 Plug and pull safety device

 24

23

25 28

26
27

4
2

10
7

11
12
1. General�������������������������������������������������������������������������������������������������������������������������������������������� 01

2. Operating conditions������������������������������������������������������������������������������������������������������������������ 01

3. Type designation�������������������������������������������������������������������������������������������������������������������������� 02

4. Technical data�������������������������������������������������������������������������������������������������������������������������������� 04

5. Release��������������������������������������������������������������������������������������������������������������������������������������������� 10

6. Tripping curve������������������������������������������������������������������������������������������������������������������������������� 13

7. Mounting of circuit breaker����������������������������������������������������������������������������������������������������� 20

8. Overall and Mounting Dimensions���������������������������������������������������������������������������������������� 21

9. Accessories characteristics and installation������������������������������������������������������������������������ 49

10. Technical Supplement�������������������������������������������������������������������������������������������������������������� 71

11. Ordering notice�������������������������������������������������������������������������������������������������������������������������� 80

 NM8N Moulded Case Circuit Breakers P-001

1. General
NM8N series moulded case circuit breaker is suitable for the circuit of AC
50/60Hz, with rated voltage AC690V and below, DC system rated voltage
DC1000V and below, and rated current of 16A and 1600A. It can protect circuits
and electric equipment against overload, short circuit or undervoltage, and
can also provide protection of overload, short circuit and under voltage for
infrequent start of motor.

Products have functions of power distribution protection, motor protection,

residual current protection and isolation.

The circuit breaker can be installed vertically, installed horizontally and can also
enter the line from the bottom.

Standards compliant:
IEC 60947-1 general rules for low-voltage switchgear and control equipment;
IEC 60947-2 low-voltage switchgear and control equipment circuit breakers;
IEC 60947-3 low-voltage switchgear and control equipment switches,
disconnectors and fuse combination appliances;
IEC 60947-4-1 Electromechanical contactors and motor starters
(including motor protectors) for low voltage switchgear and control equipment

2. Operating conditions
2.1 Temperature:
Operating and storage temperature is -40° C~+70° C; the average value
within 24 hours does not exceed +35° C; when the ambient temperature is
-40° C~+70° C, users need to consider derating or temperature compensation
whose details can be referred to in Page

2.2 Altitude: ≤ 2000m;

2.3 Pollution grade: Grade 3;

2.4 IP grade: IP40

2.5 Air conditions:

At mounting site, relative humidity not exceed 50% at the max temperature
of +40 ℃ , higher relative humidity is allowable under lower temperature. For
example, RH could be 90% at +20 ℃ , special measures should be taken to
occurrence of dews.
P-002 Moulded Case Circuit Breakers NM8N

3. Type designation

3.1 NM8N Moulded Case Circuit Breaker and Switch Disconnector

NM8N □-□□□□□□
Special application

Poles:
1P: 1-pole
2P: 2-pole
3P: 3-pole
4B: 4-pole, there is no over-current protection at
pole N and N-pole operates with other three poles
4C: 4-pole, there is over-current protection at pole N
and N-pole operates with other three poles

Rated current
125 : 16-20-25-32-40-50-63-80-100-125
250 : 32-63-100-125-160-180-200-225-250
400 : 250-315-350-400
630 : 400-500-630
800 : 500-630-700-800
1600 : 800-1000-1250-1600

Release type code

TM: Thermal-magnetic type
EN: Basic electronic type for power distribution
EM: Standard electronic type for power distribution
M: Magnetic type for motor protection
ENM: Basic electronic type for motor protection
EMM: Standard electronic type for motor protection
Blank：Switch disconnector type

Breaking capacity code: B, C, S, Q, H, R

(Switch disconnector type has no code)

Frame size rated current:

125：125A；250：250A；400：400A
630：630A；800：800A；1600：1600A

DC: DC MCCB
Blank: AC MCCB
SD: Switch disconnector

Design code

Design sequence number

MCCB

Company code
 NM8N Moulded Case Circuit Breakers P-003

3.2 NM8NL Residual Current Circuit Breaker

NM8NL -□□□□□□□
Rated residual current code:
RCD1: 0.03-0.1-0.3-1A adjustable
(Applicable to the frame size of 125-250-400-630)
RCD2: 0.05-0.2-0.5-2A adjustable (Applicable to the
frame size of 125-250)
RCD3: 0.05-0.2-0.5-1A adjustable (Applicable to the
frame size of 400-630)
RCD4: 0.1-0.3-1-2A adjustable (Applicable to the
frame size of 400-630)

Rated residual current type:

Default: AC type, A: A type

Pole code:
3P: 3-pole
4B: 4-pole, there is no over-current protection at
pole N and N-pole operates with other three poles
4C: 4-pole, there is over-current protection at pole
N and N-pole operates with other three poles

Rated current :
125 : 16-20-25-32-40-50-63-80-100-125
250 : 32-63-100-125-160-180-200-225-250
400 : 250-315-350-400
630 : 400-500-630

Release type code:

TM: Thermal-magnetic type
EN: Basic electronic type for power distribution
EM: Standard electronic type for power distribution
M: Magnetic type for motor protection
ENM: Basic electronic type for motor protection
EMM: Standard electronic type for motor protection

Breaking capacity code：C/S/Q/H/R

Frame size rated current:

125：125A；250：250A；400：400A；630：630A

Residual current code

Design code

Design sequence number

MCCB

Company code
P-004 Moulded Case Circuit Breakers NM8N

4. Technical data

NM8N Moulded Case Circuit Breaker 125 250

Magnetic type 16-20-25-32-40-50-63-80-100-125 125-160-180-200-225-250
Rated operating
Thermal-magnetic type 16-20-25-32-40-50-63-80-100-125 125-160-180-200-225-250
current In (A), 40 ℃
Electronic type — 32-63-100-160-250
Electric characteristics
Rated insulation voltage Ui (V) 1000 1000
Rated impulse withstand voltage (kV) 8 8

Rated operational voltage Ue(V),AC 50/60Hz 380/400/415,440,500,660/690 380/400/415,440,500,660/690

Breaking capacity code C S Q H R C S Q H R

1P ■ ■ — — — ■ ■ — — —
2P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
Number of poles
3P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
4P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
AC220/230/240V1) 36 50 — — — 36 50 — — —
Rated ultimate AC380/400/415V 36 50 70 100 150 36 50 70 100 150
short-circuit
AC440V 36 50 70 100 100 36 50 70 100 100
breaking
capacityIcu(kA) AC500V 25 40 40 50 50 25 40 40 50 50
AC660/690V 6 8 8 10 10 6 8 8 10 10
AC220/230/240V1) 36 50 — — — 36 50 — — —
Rated service AC380/400/415V 36 50 70 100 150 36 50 70 100 150
breaking AC440V 36 50 70 100 100 36 50 70 100 100
capacityIcs(kA) AC500V 25 40 40 50 50 25 40 40 50 50
AC660/690V 6 8 8 10 10 6 8 8 10 10
Rated short-time withstand current Icw (kA,1s) — 1(32A,63A);2(100A,160A);3(250A)
Standard IEC/EN 60947-2

Utilization category A A

Ambient temperature -40℃ ~+70℃ 2)

Safety of insulation ■ ■
Arcing distance 0 0
Mechanical life
Maintenance free 15000 15000
(CO recycle)
Electrical life AC415V,In 8000 6000
(CO recycle) AC690V,In 2000 1500
Release units
TM ■ ■
Distribution
EN — ■
protection
EM — ■
M ■ ■
Motor
ENM — ■
protection
EMM — ■
Mounting and connection
Front connection ■ ■
Fixed
Rear connection ■ ■
3)
Front connection ■ ■
Plug-in
Rear connection ■ ■
Front connection — —
Draw-out3)
Rear connection — —
DIN rail Front connection ■ ■
Dimension
Width（1P/2P/3P/4P） 35/62/90/120 40/70/105/140
Dimension (mm)
Height 140 157
W╳H╳D
Depth 78.5 88.7
Weight
1P 0.5 0.75
2P 0.83 1.3
Weight(kg)/Fixed
3P 1.19 1.85(TM/M)；2.0(EN/EM)
4P 1.55 2.5(TM/M)；2.65(EN/EM)

Note：1）For 1 pole product only；

2）
The operating temperature of basic (dial code) electronic type is -35° C~+70° C, and the operating temperature
of standard (liquid crystal) electronic type is -25° C~+70° C;
3）
For 3/4 pole product only；
4）
The data in "()" is for motor type.
 NM8N Moulded Case Circuit Breakers P-005

400 630 800 1600

250-315-350-400 400-500 500-630-700-800 —
250-315-350-400 400-500 500-630-700-800 800-1000-1250-1600
250-400 400-630 630-800 800-1000-1250-1600

1000 1000 1000 1000

12 12 12 8
380/400/415,440,
380/400/415,440,500,660/690 380/400/415,440,500,660/690 380/400/415,440,500,660/690
500,660/690
C S Q H R C S Q H R C S Q H R S Q H
— — — — — — — — — — — — — — — — — —
— — — — — — — — — — — — — — — — — —
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
— — — — — — — — — — — — — — — — — —
36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 50 70 100
36 50 70 100 100 36 50 70 100 100 36 50 70 100 100 50 65 —
25 40 40 50 50 25 40 40 50 50 25 40 40 50 100 40 50 —
10 12 12 15 15 10 12 12 15 15 12 15 15 20 30 30 30 30
— — — — — — — — — — — — — — — — — —
36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 50 70 70
36 50 70 100 100 36 50 70 100 100 36 50 70 100 100 40 50 —
25 40 40 50 50 25 40 40 50 50 25 40 40 50 100 30 40 —
10 12 12 15 15 10 12 12 15 15 12 15 15 15 15 30 30 30
5 5(400A);8(630A) 10 20
IEC/EN 60947-2
A(Thermal-magnetic)/
A(Thermal-magnetic)/B(Electronic) A(Thermal-magnetic)/B(Electronic) A(Thermal-magnetic)/B(Electronic)
B(Electronic)
-40℃ ~+70℃ 2)
■ ■ ■ ■
0 0 0 0

15000 15000 10000 6000

4000 4000(400A)/3000(630A) 2000 1000

1500 1500 1000 1000

■ ■ ■ ■
■ ■ ■ ■
■ ■ ■ ■
■ ■ ■ ■
■ ■ ■ —
■ ■ ■ —

■ ■ — ■
■ ■ ■ —
■ ■ — —
■ ■ — —
■ ■ ■ —
■ ■ ■ —
— — — —

140/185 140/185 195/260 210/280

255 255 300 286
113 113 133 167（195）4)

— — — —
— — — —
5.2(TM/M)；5.8(EN/EM) 5.5(TM/M)；6.0(EN/EM) 10.5(TM/M)；10.5(EN/EM) 13.5(16)4)
6.7(TM/M)；7.8(EN/EM) 7.0(TM/M)；8.0(EN/EM) 13.5(TM/M)；13.5(EN/EM) 17.5(20)4)
P-006 Moulded Case Circuit Breakers NM8N

NM8N DC Moulded Case Circuit Breaker 125 250

Rated operating current In (A), 40 ℃ 16-20-25-32-40-50-63-80-100-125 125-160-180-200-225-250

Electric characteristics

Rated insulation voltage Ui (V) 1000 1000

Rated impulse withstand voltage Uimp (kV) 8 8

Rated operational voltageUe(V),DC 250， 500， 750， 1000 250， 500， 750， 1000

Breaking capacity code B C S Q H B C S Q H

1P ■ ■ ■ — — ■ ■ ■ — —

2P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■
Number of poles
3P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

4P ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

DC250V 1P 25 36 50 — — 25 36 50 — —
Rated ultimate
short-circuit DC500V 2P in series 25 36 50 70 100 25 36 50 70 100
breaking capacity DC750V 3P in series 25 36 50 70 100 25 36 50 70 100
Icu(kA)
DC1000V 4P in series 25 36 50 70 100 25 36 50 70 100

DC250V 1P 25 36 50 — — 25 36 50 — —
Rated service DC500V 2P in series 25 36 50 70 100 25 36 50 70 100
breaking capacity
Ics(kA) DC750V 3P in series 25 36 50 70 100 25 36 50 70 100

DC1000V 4P in series 25 36 50 70 100 25 36 50 70 100

Standard IEC/EN 60947-2

Utilization category A A

Ambient temperature -40℃ ~+70℃

Safety of insulation ■ ■

Arcing distance 0 0
Mechanical life
Maintenance free 15000 15000
(CO recycle)
Electrical life
DC1000V,In 2000 1500
(CO recycle)
Release units
Distribution
TM ■ ■
protection
Mounting and connection

Front connection ■ ■
Fixed
Rear connection ■ ■

Front connection ■ ■
Plug-in1)
Rear connection ■ ■

Front connection — —
Draw-out1)
Rear connection — —

DIN rail Front connection ■ ■

Dimension

Width（1P/2P/3P/4P） 35/62/90/120 40/70/105/140

Dimension (mm)
Height 140 157
W╳H╳D
Depth 78.5 88.7

Weight

1P 0.5 0.75

2P 0.83 1.3
Weight(kg)/Fixed
3P 1.19 1.85

4P 1.55 2.5

Note: 1）For 3/4 pole product only.

 NM8N Moulded Case Circuit Breakers P-007

400 630 800 1600

800-1000-
250-315-350-400 400-500 500-630-700-800
1250-1600

1000 1000 1250 1000

12 12 12 8

750， 1000 750， 1000 750， 1000 750， 1000

B C S Q H B C S Q H B C S Q H B C

— — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — —

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

— — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — —

25 36 50 70 100 25 36 50 70 100 25 36 50 70 100 25 36

25 36 50 70 100 25 36 50 70 100 25 36 50 70 100 25 36

— — — — — — — — — — — — — — — — —

— — — — — — — — — — — — — — — — —

25 36 50 70 100 25 36 50 70 100 25 36 50 70 100 25 36

25 36 50 70 100 25 36 50 70 100 25 36 50 70 100 25 36

IEC/EN 60947-2

A A A A

-40℃ ~+70℃

■ ■ ■ ■

0 0 0 0

15000 15000 10000 6000

1500 1500 1000 1000

■ ■ ■ ■

■ ■ — ■

■ ■ ■ —

■ ■ — —

■ ■ — —

■ ■ ■ —

■ ■ ■ —

— — — —

140/185 140/185 195/260 210/280

255 255 300 286

113 113 133 167

— — — —

— — — —

5.2 5.5 10.3 13.5

6.7 7 13.5 17.5

P-008 Moulded Case Circuit Breakers NM8N

NM8NL Residual Current protection module 125 250 400 630

Rated operating current In (A), 40 ℃ 125 250 400 630

Number of poles 3P、4P 3P、4P 3P、4P 3P、4P

Electric characteristics

Rated insulation voltage Ui (V) 1000 1000 1000 1000

Rated impulse withstand voltage Uimp (kV) 8 8 12 12

Rated operational voltageUe(V),AC 50/60Hz 380/400/415、440 380/400/415、440 380/400/415、440 380/400/415、440

16-20-25-32-40-50- 125-160-180-200-225-
TM 250-315-350-400A 400-500A
63-80-100-125 250
EN — 32-63-100-160-250 250-400 400-630

Rated current (A) EM — 32-63-100-160-250 250-400 400-630

of circuit breaker 16-20-25-32-40-50- 125-160-180-200-225-
M 250-315-350-400A 400-500A
63-80-100-125 250
ENM — 32-63-100-160-250 250-400 400-630

EMM — 32-63-100-160-250 250-400 400-630

RCD1（Four-step
0.03-0.1-0.3-1 0.03-0.1-0.3-1 0.03-0.1-0.3-1 0.03-0.1-0.3-1
adjusable）
RCD2（Four-step
Rated residual 0.05-0.2-0.5-2 0.05-0.2-0.5-2 — —
adjusable）
operating current
IΔn(A) RCD3（Four-step
— — 0.05-0.2-0.5-1 0.05-0.2-0.5-1
adjusable）
RCD4（Four-step
— — 0.1-0.3-1-2 0.1-0.3-1-2
adjusable）
Rated residual non-operating current
0.5IΔn 0.5IΔn 0.5IΔn 0.5IΔn
IΔno(A)
1)
Limit non-actuating time (ms) Δt : 0-60-200-500
Maximum breaking Total breaking time
100-300-500-1000 100-300-500-1000 100-300-500-1000 100-300-500-1000
time (ms) (adjustable)
Rated residual making and breaking capacity
0.25Icu 0.25Icu 0.25Icu 0.25Icu
IΔm(kA)
Leakage alarm non-tripping function □ □ □ □
Standard IEC/EN 60947-2

Residual current type A/AC A/AC A/AC A/AC

Safety of insulation ■ ■ ■ ■

Ambient temperature -25℃ ~+70℃

Arcing distance 0 0 0 0

Dimension

Width（3P/4P） 90/120 105/140 140/185 140/185

Dimension with circuit
breaker (mm) Height 205 232 355 355
W×H×D
Depth 78.5 88 113 113

Weight
Weight of residual 3P 0.43 0.84 1.98 1.98
current protection
module (kg) 4P 0.51 1.08 2.69 2.69

Note：1）When the residual operating current is set to 0.03A, the limit non-actuating time must be set to 0.
 NM8N Moulded Case Circuit Breakers P-009

NM8NSD Switch Disconnector 125 250 400 800 1600

NM8NSD Switch Disconnector
125 250 400 800 1600
Ith(A),40℃
Number of poles 2P 3P 4P 2P 3P 4P 3P 4P 3P 4P 3P 4P
Rated operational 800-1000-1250-
125 250 400 800
current Ie(A) 1600

Rated operational AC (50/60Hz) 690 690 690 690 415/690

voltage Ue(V) DC 500 750 1000 500 750 1000 750 1000 750 1000 750 1500
AC : 1000
Rated insulation voltage Ui (V) 1000 1000 1000 1250
DC : 1500
Rated impulse withstand
8 8 12 12 12
voltage Uimp (kV)
Rated short-circuit making capacity
3.2(AC)/2(DC) 5(AC)/3.2(DC) 8(AC)/5(DC) 14 40(AC)/19.2(DC)
Icm(kA)
Rated short-time 1s 2 3.2 5 8/10 20(AC)/19.2(DC)
withstand current
Icw(kA) 3s 2 3.2 5 8/10 20

Standard IEC/EN 60947-3，GB/T 14048.3

AC-22A/AC-23A AC-22A/AC-23A AC-22A/AC-23A AC-22A/AC-23A AC-22A/AC-23A
Utilization category
DC-22A/DC-23A DC-22A/DC-23A DC-22A/DC-23A DC-22A/DC-23A DC-22A/DC-22B
Safety of insulation ■ ■ ■ ■ ■

Ambient temperature -40℃ ~+70℃

Arcing distance 0 0 0 0 0
Mechanical life
Maintenance free 15000 15000 15000 10000 6000
(CO recycle)
AC415V,In 8000 6000 4000 2000 1000
Electrical life
AC690V,In 2000 1500 1500 1000 1000
(CO recycle)
DC1000V,In 2000 1500 1500 1000 1000

Mounting and connection

Front connection ■ ■ ■ — ■
Fixed
Rear connection ■ ■ ■ ■ ■

Front connection ■ ■ ■ — —
Plug-in1)
Rear connection ■ ■ ■ — —

Front connection — — ■ ■ —
Draw-out1)
Rear connection — — ■ ■ —
DIN rail Front connection ■ ■ — — —

Dimension

Width（2P/3P/4P） 62/90/120 70/105/140 140/185 195/260 210/280

Dimension(mm)
Height 140 157 255 300 286
W×H×D
Depth 78.5 88 113 133 167（195）2)

Weight

2P 0.81 1.1 — — —

Weight(kg)/Fixed 3P 1.05 1.75 5 9.5 13(15.5)2)

4P 1.5 2.4 5.5 12.5 17(19.5)2)

Note: 1）For 3/4 pole product only；

2）
The data in "()" is for motor type
P-010 Moulded Case Circuit Breakers NM8N

5. Release
5.1 Protection for power distribution
5.1.1 Thermo-magnetic type release TM
Thermo-magnetic release of NM8N-125, 250, 400, 630, 800 and 1600 breakers can be set to meet
protection requirements

Thermo-magnetic
125 250 400 630 800 1600
release TM
2P/3P
Number of poles 1P 1P 2P/3P/4P 3P/4P 3P/4P 3P/4P 3P/4P
4P
16/20/25 125/160 160/180
250/315 500/630 800/1000
Rated curent 32/40/50 180/200 125 200/225 400/500
350/400 700/800 1250/1600
63/80/100/125 225/250 250
Over-load protection
1.0 0.7- 1.0
Setting current
Non- 0.8- Non- 0.7-0.8-0.9-1.0 0.8-0.9-1.0
（A）Ir=In х adjustable 0.9-1.0 adjustable
Short-circuit instantaneous protection
7-8-
Setting current
10 10 9-10- 5-6-7-8-9-10
（A）Ii=In х
11-12
Accuracy ±20%
N-pole protection
Setting current
/ 10 / The same with the other three-phase poles.
（A）IiN=In х
Accuracy ±20%

5.1.2 Basic electronic type release for power distribution EN

EN electronic trip unit has three-stage protection of overload, short circuit short time-delay and
short circuit instantaneous protection.
Electronic type EN 250 400 630 800 1600
Over-load Setting current Ir=In ╳ 0.4-0.5-0.6-0.7-0.8-0.9-0.95-1.0
long-time delay
protection 6Ir Tripping time Tr(s) 3-6-12-18, Accuracy ±10%

Short circuit Setting current Isd=Ir× 1.5-2-3-4-6-8-10, OFF, Accuracy ±15%

short-time delay 0.1-0.2-0.3-0.4，Accuracy ±20% or ±40ms(higher value will
protection Tripping time Tsd(s)
be selected)
Short circuit Setting current Ii=In× 2-3-4-6-8-10-12, OFF, Accuracy ±15%
instantaneous
protection Max. tripping time (ms) 60
IrN=(0.5,1)xIn, OFF; IsdN=(1.5-2-3-4-6-8-10)IrN
Neutral line Setting current
IiN=(2-3-4-6-8-10-12)IrN
protection
Tripping time (s) The same with the other three-phase poles.

● Overload protection and tripping time setting

—The current value Ir can be adjusted according to the user's needs. The tripping time Tr is at the
status of 6Ir.
● Short circuit short-time delay protection and trip time setting
—The current value Isd can be adjusted according to the user's needs. Tripping time Tsd is the short-
circuit short time-delay tripping time, which can be adjusted according to user needs.
● Short circuit instantaneous protection characteristics setting
—The current value Ii can be adjusted according to the user's needs.
● Neutral line protection feature setting
The four-pole circuit breaker N-pole protection current value can be adjusted according to user
needs. The N pole tripping time is the same with the other three-phase poles.

5.1.3 Standard electronic type release for power distribution EM

EM release has four-stage protection of overload, short circuit short-time delay, short circuit
instantaneous protection and earth fault, with real-time current display, protection parameter
information display, fault information display and parameter setting function

Run
Alarm

>0.9Ir

>1.05Ir

COM
EM
 NM8N Moulded Case Circuit Breakers P-011

Electronic type EM 250 400 630 800 1600

Over-load Setting current Ir=In ╳ 0.4~1.0, Stepping1A
long-time delay
protection 6Ir Tripping time Tr(s) 3~18, 1s, Accuracy ±10%
Short circuit Setting current Isd=Ir× 1.5~10, Stepping1A, OFF, Accuracy ±15%
short-
time delay 0.1-0.2-0.3-0.4, Accuracy ±20% or ±40ms(higher value
Tripping time Tsd(s)
protection will be selected)
Short circuit Setting current Ii=In× 1.5~12, Stepping1A, OFF, Accuracy ±15%
instantaneous
protection Max. tripping time (ms) 60

Earth fault Setting current Ig=In ╳ 0.4-0.5-0.6-0.7-0.8-0.9-1.0, OFF, Accuracy ±15%

protection Tripping time (s) 0.1-0.2-0.3-0.4,Accuracy ±15%

Neutral line Setting current IrN=(0.5,1)xIn; IsdN=(1.5~10)IrN; IiN=(1.5~12)IrN; 可 OFF

protection Tripping time (s) The same with the other three-phase poles.

● Overload protection and tripping time setting

— Current setting value Ir , the user can adjust the range according to the ↑ and ↓ buttons on the
panel, the range is (0.4~1.0) In, and the tripping time Tr is at the status of 6Ir, which can be adjusted
according to user needs.
● Short circuit short-time delay protection and tripping time setting
—The current setting value Isd can be adjusted according to the user's needs, and the “OFF”
indicates function can be turned off. Tripping time Tsd is the short-circuit short-time delay tripping
time, which can be adjusted according to user needs.
● Short circuit instantaneous protection characteristics setting
—The current setting value Ii can be adjusted according to the user's needs, and the “OFF”
indicates function can be turned off.
● Neutral line protection feature setting
—Neutral line protection of the four-pole circuit breaker (current setting value InN ), the setting
range is 0.5In , 1I n or OFF, which can be adjusted according to the user's needs. The “OFF”
position indicates that the N pole has no protection function.
● Earth fault protection
Earth fault Ig can be adjusted according to user needs, where the “OFF” means the function can
be turned off.
t

5.2 Protection for motor

5.2.1 Motor starting characteristics
At present, most of the motors use three-phase asynchronous induction motors, and a large part
td of them use the direct start mode, namely, the electric energy does not take artificial restriction
measures, and directly feeds to start the motor, which is also called full-pressure start. When the
asynchronous motor is directly started, a high starting current of 4 to 7 times of the rated current
occurs. The reason why the asynchronous motor has a large starting current is that the motor
has certain inertia, and the rotor speed cannot be immediately changed to the rated speed after
starting. At this time, the relative rotational speed of the rotating magnetic field of the stator
In Id Id ’ I (synchronous speed of the motor, slightly higher than the rated speed) is large. The rotor winding
Motor starting Current curve cuts the stator magnetic field at a large speed to generate a large current; at the same time, the
magnetic field generated by the large current of the rotor in turn induces the stator winding, so
that the current also rapidly increases.
Startup parameter
Rated current (In ): current value of the motor under rated operation
Starting current (Id): The current when the motor starts, its magnitude varies with different
conditions, the average value is 7.2×In
Start peak current (Id ,): Transient current during the first two half-waves after the motor is powered
on, typically 14 × In
Start-up time (td): generally 0.5~20s, which refers to the time when the motor has starting current
Direct startup impact on the protection device
For circuit breakers with magnetic protection, if the conventional current of the magnetic trip unit
is set incorrectly, the circuit breaker will mistake the start current of the motor for short-circuit
current, causing the circuit breaker to malfunction. For the independent thermal relay, the heat
generated by the large starting current during the motor starting phase will also cause the relay
to trip. For the contactor, if the motor needs electric or regenerative braking, it needs to be able
to be broken during the motor starting phase. It generally needs to derate, in order to avoid the
malfunction of the protection device caused by the start current:
The inverse time characteristic curve of the independent thermal relay is required to be completely
above the starting current.
The short-circuit current trip setting of the circuit breaker with magnetic protection should be
greater than the peak starting current of the motor.

5.2.2 Protection solution

The NM8N Series offers start-up, control and protection solutions for two three-phase
asynchronous motors:
Three-component solution
P-012 Moulded Case Circuit Breakers NM8N

Electromagnetic protection circuit breaker + contactor + thermal relay

Among them, the electromagnetic protection circuit breaker is used for short circuit protection, the
contactor is used for motor operation, and the thermal relay is used for overload, phase loss and
phase unbalance protection.

1）Magnetic release M

The electromagnetic protection circuit breaker has a current range of 125~800A, an adjustable
range of 9~14In and an accuracy of 20%. It is especially suitable for use in the classic three-
component protection solution.

Magnetic M 125 250 400 630 800

Pole 3P/4P 3P/4P 3P/4P 3P/4P 3P/4P
Short circuit instantaneous protection
Setting current（A）Ii=In х 12 9-10-11-12-13-14
Accuracy ±20%
N pole protection
Setting current（A）IiN=In х 12 The same with the other three-phase poles.Ii
Accuracy ±20%

Two-component solution
Integrated protection electronic circuit breaker + contactor
In the two-component solution, there is no need to use the thermal relay, and the integrated
protection electronic circuit breaker has the functions of overload, phase loss, phase unbalance
protection and short circuit protection. The integrated protection electronic circuit breaker not only
has high tripping precision, but also has reliable operation. The two-component solution consisting
of contactors and the installation time can be saved without being affected by the ambient
temperature.
2）Integrated protection: Basic electronic type release for motor protection ENM
The ENM electronic trip unit allows for tighter tolerance trip times, as detailed in the table below.
Electronic type ENM 250 400 630 800
Setting current Ir=In ╳ 0.4-0.5-0.6-0.7-0.8-0.9-1.0, OFF
Overload
4、8、16,
long-time delay 7.2Ir Tripping time Tr(s) 48、16、24, Accuracy ±10%
Accuracy ±10%
protection
Tripping level 5、10、20 5、10、20、30
Short circuit Setting current Isd=Ir× 5-6-8-9-10-11-12, OFF, Accuracy ±15%
short-time delay
protection Tripping time Tsd(ms) 100,Accuracy ±40
Short circuit Setting current Ii=In× 151）
instantaneous
protection Max. tripping time (ms) 60
Phase unbalance/Phase failure Iunbal 30%-40%-50%-60%-70%-80%-90% (Phase failure)-OFF
Max. trip time of phase imbalance (s) 4-6-8-10,Accuracy ±10%
Tripping time of phase failure (s) 0.25,Accuracy ±20%
IrN=(0.5,1)xIn;IsdN=(5-6-8-9-10-11-12)IrN
Neutral line Setting current
IiN=15IrN, OFF
protection
Tripping time The same with the other three-phase poles
Note: 1）Setting current Isd<Ii(within tolerance).

3）Integrated protection: Standard electronic type release for motor protection EMM
The EMM electronic release not only has the protection function of the ENM release, but also adds
ground fault protection and stall protection. Moreover, it can also display real-time current, display
protection parameter information, display fault information, and have parameter setting function.
Electronic type EMM 250 400 630 800
Protection current Ir=In ╳ 0.4~1.0，Stepping1A, OFF
Overload
4、8、16,
long-time delay 7.2Ir Tripping time Tr(s) 4、8、16、24, Accuracy ±10%
Accuracy±10%
protection
Tripping level 5、10、20 5、10、20、30
Short circuit Protection current Isd=Ir× 4~12, Stepping1A, OFF, Accuracy ±15%
short-time delay
protection Tripping time Tsd(ms) 100, Accuracy ±40
Short circuit Protection current Ii=In× 151）
instantaneous
protection Max. tripping time(ms) 60
Protection current Ig=In ╳ 0.4-0.5-0.6-0.7-0.8-0.9-1.0，OFF, Accuracy ±15%
Earth fault
protection 0.1-0.2-0.3-0.4, Accuracy ±20% or 40ms(higher
Tripping time (s)
value will be selected)
Phase unbalance/Phase failure Iunbal 30%-40%-50%-60%-70%-80%-90%(Phase failure)-OFF
Max. trip time of phase imbalance (s) 4-6-8-10, Accuracy ±10%
Tripping time of phase failure (s) 0.25, Accuracy ±20%
Locked-rotor current Ijam (3~10)Ir，Stepping1A, OFF(Defalut), Accuracy ±15%
Tripping timeTjam(s) 1~30, Step size1s, Defalut 5, Accuracy ±10%
Neutral line Setting current IrN=(0.5,1)xIn, OFF; IsdN=(4~12)IrN; IiN=15IrN, OFF
protection Tripping time The same with the other three-phase poles.
1）
Note: Setting current Isd<Ii(within tolerance).
 NM8N Moulded Case Circuit Breakers P-013

6. Tripping curve

6.1 Thermal-magnetic type for power distribution

NM8N-125(16A,20A,25A,32A)

NM8N-125(40A,50A,63A)

NM8N-125(80A,100A,125A)
P-014 Moulded Case Circuit Breakers NM8N

NM8N-250(125A)

NM8N-250(160A,180A)

NM8N-250(200A,225A,250A)
NM8N Moulded Case Circuit Breakers P-015

NM8N-400(250A~400A)

NM8N-630(400A~500A)

NM8N-800(500A~800A)
P-016 Moulded Case Circuit Breakers NM8N

NM8N-1600(800A~1600A)

6.2 Magnetic type for motor protection

NM8N-125(16A~125A)

Maximum heat withstand capacity

NM8N-250(125A~250A)

Maximum heat withstand capacity

 NM8N Moulded Case Circuit Breakers P-017

NM8N-400(250A~400A)

Maximum heat withstand capacity

NM8N-630(400A~500A)

Maximum heat withstand capacity

NM8N-800(500A~800A)

Maximum heat withstand capacity

P-018 Moulded Case Circuit Breakers NM8N

6.3 Electronic type for power distribution

EN Basic electronic type

Long-time Ir= (0.4, 0.5, 0.7, 0.8, 0.9, 0.95, 1)In Instantaneous Ii= (OFF, 2, 3, 4, 6, 8, 10, 12 ) In
delay Tr= (3, 6, 12, 18) s

Short-time Isd= (OFF, 1.5, 2, 3, 4, 6, 8, 10 ) Ir

delay Tsd= (0.1, 0.2, 0.3, 0.4) s

EM Standard electronic type

Long-time delay Ir= (0.4~1)In Tr= (3~18)s Instantaneous Ii= (1.5~12 ) In Earth fault Ig= (0.4~1 ) In Tg=(0.1~0.4)s
Short-time
Isd= (1.5~10)Ir Tsd=(0.1~0.4)s
delay
 NM8N Moulded Case Circuit Breakers P-019

6.4 Electronic type for motor protection

ENM Basic electronic type

Long-time Ir=(OFF,0.4,0.5,0.7,0.8,0.9,1)In @7.2Ir Instantaneous Ii= 15 In

delay Class= (5, 10, 20, 30)

Short-time Isd= (OFF,5,6,8,9,10,11,12 )Ir

delay Tsd= 0.1s

EMM Standard electronic type

Long-time Ir=(0.4~1)In @7.2Ir Instantaneous Ii= 15 In Earth fault Ig= (0.4~1 ) In Tg=(0.1~0.4)s
delay Class= (5, 10, 20, 30)

Short-time
Isd= (4~10)Ir Tsd=0.1s
delay
P-020 Moulded Case Circuit Breakers NM8N

7. Mounting of circuit breaker

7.1 Modes of down-lead

Incoming method

7.2 Modes of mounting

Modes of mounting

7.3 Safe distance

Zero arc

Zero arc Zero arc

Zero arc
 NM8N Moulded Case Circuit Breakers P-021

8. Overall and Mounting Dimensions

8.1 NM8N-125

NM8N-125 Front connection (1P/2P)

Front connection
Phase barrier

Unit:(mm)
P-022 Moulded Case Circuit Breakers NM8N

NM8N-125 Front connection (3P/4P)

Front connection
Phase barrier

Unit:(mm)

NM8N-125 Rear connection (1P/2P)

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-023

NM8N-125 Rear connection (3P/4P)

Rear connection

Unit:(mm)

NM8N-125 Plug-in front connection

Mounting plate

Unit:(mm)

NM8N-125 Plug-in rear connection

Vertical connection

Horizontal connection
Mounting plate

Unit:(mm)
P-024 Moulded Case Circuit Breakers NM8N

NM8N-125 DIN-rail mounting

Unit:(mm)

NM8N-125 DIN-rail mounting (DIN-rail adapter is needed)

Unit:(mm)

NM8N-125 Mechanical interlock

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-025

NM8N-125 Terminal cover

3P Long terminal cover 4P Long terminal cover

3P Short terminal cover 4P Short terminal cover

Unit:(mm)
P-026 Moulded Case Circuit Breakers NM8N

8.2 NM8N-250

NM8N-250 Front connection (1P/2P)

Front connection

Front connection

Phase barrier
Unit:(mm)

NM8N-250 Front connection (3P/4P)

Front connection

Phase barrier

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-027

NM8N-250 Rear connection (1P/2P)

Unit:(mm)

NM8N-250 Rear connection (3P/4P)

Rear connection

Unit:(mm)

NM8N-250 Plug-in front connection

Mounting plate

Unit:(mm)
P-028 Moulded Case Circuit Breakers NM8N

NM8N-250 Plug-in rear connection

Horizontal connection
Mounting plate

Unit:(mm)

NM8N-250 DIN-rail mounting

Unit:(mm)

NM8N-250 DIN-rail mounting (DIN-rail adapter is needed)

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-029

NM8N-250 Mechanical interlock

Unit:(mm)

NM8N-250 Terminal cover

3P Short terminal cover 4P Short terminal cover

3P Long terminal cover 4P Long terminal cover

Unit:(mm)
P-030 Moulded Case Circuit Breakers NM8N

8.3 NM8N-400/630

NM8N-400/630 Front connection

Front connection Phase barrier

Unit:(mm)

NM8N-400/630 Rear connection

Rear connection

Unit:(mm)

NM8N-400/630 Plug-in front connection

Mounting plate

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-031

NM8N-400/630 Plug-in rear connection

Vertical connection

Horizontal connection

Mounting plate
Unit:(mm)

NM8N-400/630 DIN-rail mounting

Unit:(mm)

NM8N-400/630 Mechanical interlock

Unit:(mm)
P-032 Moulded Case Circuit Breakers NM8N

NM8N-400/630 Long terminal cover

Unit:(mm)

NM8N-400/630 Short terminal cover

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-033

NM8N-400/630 Draw-out type

Front connection
Rear connection

Unit:(mm)

Dimension
Current Pole

DIN-rail mounting

Installation dimension
Pole

DIN-rail mounting

Rear connection

Installation floor

Front connection

Installation floor

Installation dimension of rear plate connection

Current
Pole

L7=90 when it is front connection, the rest of dimensions are the same with rear connection
P-034 Moulded Case Circuit Breakers NM8N

8.4 NM8N-800

NM8N-800 Front connection (3P)

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-035

NM8N-800 Front connection (4P)

Unit:(mm)

NM8N-800 Rear connection

N pole

Unit:(mm)
P-036 Moulded Case Circuit Breakers NM8N

NM8N-800 Mechanical interlock

135.5
135.5
269
269
3P 4P

Unit:(mm)

NM8N-800 Short terminal cover

300.6

97.5
195 113
260

3P Short terminal cover 4P Short terminal cover

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-037

NM8N-800 Long terminal cover

516.6
516.6

195
113
97.5
260 131.5

3P Long terminal cover 4P Long terminal cover

Unit:(mm)
P-038 Moulded Case Circuit Breakers NM8N

NM8N-800 Draw-out type

Front connection

Rear connection

Unit:(mm)

Dimension
Pole

DIN-rail mounting

Installation dimension
Pole

Rear connection

Installation floor

Front connection

Installation floor

Installation dimension
Pole

L7=200 when it is front connection, the rest of dimensions

are the same with rear connection
 NM8N Moulded Case Circuit Breakers P-039

8.5 NM8N-1600

NM8N-1600 Front connection (Manual type 3P)

Connection row

Unit:(mm)

NM8N-1600 Front connection (Manual type 4P)

Connection row

Unit:(mm)
P-040 Moulded Case Circuit Breakers NM8N

NM8N-1600 Front connection (Motor type 3P)

Connection row

Unit:(mm)

NM8N-1600 Front connection (Motor type 4P)

Connection row

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-041

8.6 NM8NL

NM8NL-125 Front connection

Connection row

Phase barrier

Unit:(mm)
P-042 Moulded Case Circuit Breakers NM8N

NM8NL-125 Rear connection

Unit:(mm)

NM8NL-125 DIN-rail mounting

Unit:(mm)
NM8N Moulded Case Circuit Breakers P-043

NM8NL-250 Front connection

Unit:(mm)

NM8NL-250 Rear connection

Unit:(mm)
P-044 Moulded Case Circuit Breakers NM8N

NM8NL-250 DIN-rail mounting

Unit:(mm)

NM8NL-400/630 Front connection

Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-045

NM8NL-400/630 Rear connection

Unit:(mm)

NM8NL-400/630 DIN-rail mounting

Unit:(mm)

8.7 NM8N Wiring diagram

NM8N-125 Cable connector

Unit:(mm)

Z
26
62.5

62.5
95

95

NM8N-125 Product center

NM8N-125 Product center
NM8NL-125 Product center NM8NL-125 Product center

MC21-M8 1hole CCT21-M8 1hole

P-046 Moulded Case Circuit Breakers NM8N

NM8N-250 Cable connector

Z
Z

40
70

70
107.5

107.5
Product center
NM8N-250产品中心 Product center
NM8N-250产品中心

Product center
NM8NL-250产品中心 Product center
NM8NL-250产品中心

CCT22-M8 1hole MC22-M8 1hole

Z
52

41
70

107.5
70
107.5

Product center
NM8N-250产品中心 Product center
NM8N-250产品中心

Product center
NM8NL-250产品中心 NM8NL-250产品中心
Product center
Unit:(mm)
MC22-M8 2 hole MC22-M8 6 hole

NM8N-630 Cable connector

Unit:(mm)

Z Z
73

Z
56
113.5

113.5
113.5
163.5

163.5

163.5

Product center
NM8N-400/630产品中心 Product center
NM8N-400/630产品中心 NM8N-400/630产品中心
Product center

Product center
NM8NL-400/630产品中心 Product center
NM8NL-400/630产品中心 NM8NL-400/630产品中心
Product center

CCT23-M8 1hole MC23-M8 2 hole MC23-M8 4 hole

 NM8N Moulded Case Circuit Breakers P-047

NM8N-800 Cable connector

42
132.5
NM8N-800产品中心
Product center
Unit:(mm)
MC24-M8 2 hole

NM8N-1600 Cable connector

Unit:(mm)

Z Z

85.5
85.5

129
129

Product center
NM8N-1600产品中心 Product center
NM8N-1600产品中心

MC25-M8 4 hole MC25-M8 3 hole

P-048 Moulded Case Circuit Breakers NM8N

8.8 Wiring

NM8N-125 NM8N-250

≤4
≤6

≥7.5 Φ7 ≤4 ≥9.5
Φ7 Φ8.5 ≤6
≤7.5 Φ8.5
≤8.5
2
≤14. .2
≤14 ≤25 ≤25

Unit:(mm)

NM8N-400/630 NM8N-800

≤8 ≤10

≤8
Φ10.5
≥15 ≥20 ≤10
Φ10.5 Φ13 Φ13
≤12.5 ≤16
≤30
≤30 ≤50 ≤50
Unit:(mm)

NM8N-1600

≤20

≥14 Φ10.5
25
≤16

≤55
Unit:(mm)
 NM8N Moulded Case Circuit Breakers P-049

9. Accessories characteristics and installation

NM8N moulded case circuit breaker has various accessory modules, which can be
found in P84 for more details

9.1 AX Auxiliary contact

9.1.1 Function
Remotely indicate the circuit breaker's making (on) or breaking / tripping (OFF) status,
connected to the auxiliary circuit of the circuit breaker.
9.1.2 Model description

AX 21-M8

Serial code: NM8N series

Frame size code: Auxiliary contacts are universal accessories

for each frame, with default as code 21

Auxiliary contact name code

9.1.3 Indication of circuit breaker status

Circuit breaker is at breaking status F12

F11
F14
F12 F11
Circuit breaker is at making status
F14

9.1.4 Electrical characteristics

Rated Rated current (A)
voltage (V) AC-15 DC-13
AC 110 5 —
AC 240 4 —
AC 415 2 —

DC 110 — 0.25
DC 220 — 0.25

9.1.5 Wiring diagram

Power supply

Making circuit

Breaking circuit
P-050 Moulded Case Circuit Breakers NM8N

9.2 AL Alarm contact

9.2.1 Function
It is mainly used to provide a signal when the load of the circuit breaker is overloaded,
short-circuited or undervoltage, or tripped.
The reasons for the failure of the alarm signal are:
• Over-load or short-circuit
• Undervoltage trip
• Residual current action trip
• Manual free trip
9.2.2 Model description
AL 21-M8

Serial code: NM8N series

Frame size code: Alarm contacts are universal accessories

for each frame, with default as code 21

Alarm contact name code

9.2.3 Indication of circuit breaker status

Circuit breaker is at breaking
or making status
Circuit breaker is at free tripping
status

9.2.4 Electrical characteristics

AC-15 DC-13
AC 110 5 —
AC 240 4 —
AC 415 2 —

DC 110 — 0.25
DC 220 — 0.25

9.2.5 Wiring diagram

B11 QF
电源 supply
Power
TRIP B14
报警指示
Alarm status

Normal status
B12
Breaking or making 正常指示
 NM8N Moulded Case Circuit Breakers P-051

9.3 SHT Shunt release

9.3.1 Function
Shunt releases operate according to electrical signals, enabling remote control and
automatic control of circuit breakers. When the supply voltage When the voltage
is equal to any voltage between 70% and 110% of the rated control power supply
voltage, the shunt release should enable the circuit breaker to operate reliably.
9.3.2 Model description
SHT 21-M8 AC48V

Rated voltage：AC48V/110V/220-240V/380-415V;
DC24V/48V/110-120V/220V

Series code: NM8N series

Frame code: 21 for 125 frame; 22 for 250/400/630 frame; 24 for 800 frame;
25 for 1600 frame

Shunt release code

9.3.3 Electrical characteristics

Power consumption (W)

Frame size AC220- AC380-
AC48V AC110V DC24V DC48V DC220V
240V 415V
125A 2.2 2.2 2 2.5 2.5 2.2 2
250/400/630A 2.3 2.5 2.2 2.5 2.2 2.5 2.5
800A 2.3 2.5 2.2 2.5 2.2 2.5 2.5
1600A 110 195 480 560 230 110 160

9.3.4 Action characteristics

Can be powered for a long time. Response time: pulse type ≥ 20ms, ≤ 60ms

9.3.5 Wiring diagram

Shunt release

C1 C2

SB

Note：When the rated control power supply voltage DC24V shunt release is used, the
maximum length of the copper wire (each of the two wires) must meet the following table:

Conductor cross-sectional area

Rated control 1.5mm2 2.5mm2

supply voltageUs(DC24V)
100%Us 150m 250m
85%Us 100m 160m
P-052 Moulded Case Circuit Breakers NM8N

9.4 UVT Under-voltage release

9.4.1 Function
Realize the under-voltage protection function of the circuit breaker, open the
circuit breaker when the power supply voltage is too low, and protect the electrical
equipment.
• When the supply voltage drops (even slowly) to 70% to 35% of the rated control
supply voltage, the undervoltage trips The breaker should open the circuit breaker
reliably.
• When the supply voltage is equal to or greater than 85% of the rated control supply
voltage of the undervoltage release, the circuit breaker should be guaranteed to close.
• When the supply voltage is less than 35% of the rated control supply voltage of the
undervoltage release, the undervoltage release should prevent the circuit breaker.
9.4.2 Model description
UVT 21-M8 AC48V

Rated voltage: AC48V; AC110V;AC220-240V;AC380-415V;

DC24V;DC48V;DC110-120V;DC220V

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250/400/630 frame; 24 for 800 frame;
25 for 1600 frame

Under-voltage release code

9.4.3 Electrical characteristics

Power consumption (W)

Frame size AC220- AC380- DC110-
AC48V AC110V DC24V DC48V DC220V
240V 415V 120V
125A 1.6 1.6 2 3 1.2 1.6 2 2.2
250/400/630A 1.5 1.5 2.2 3 0.8 1.5 2 2.5
800A 1.5 1.5 2.2 3 0.8 1.5 2 2.5
1600A 2.6 2.2 1.7 0.7 2.8 2.5 2.2 1.8

9.4.4 Wiring diagram

U<

Under-voltage release
 NM8N Moulded Case Circuit Breakers P-053

9.5 MOD Motor-driven mechanism

9.5.1 Function
It is suitable for closing, opening and re-opening of circuit breakers at long distances,
as well as automation applications.
A: Protection level: IP40
• Reliable insulation;
• With isolation function indication;
• O (open), I (closed) and free trip 3 position indications;
• Free circuit breaker trip;
• Manually or automatically operated circuit breakers for closing and opening.
B: manual operation
Pull the "manual / auto" switch to the manual position and turn the operation handle
to switch on and off the circuit breaker.
C: automatic operation
Pull the "manual / auto" switch to the automatic position, and remotely press the
"close or open" button to switch on and off the circuit breaker.
D: Automatically switch on or off by pulse or self-holding signal control.
E: Only when the control voltage is ≥ 85% Un and ≤ 110% Un can the circuit breaker
be reliably switched on and off.

9.5.2 Model description

MOD 21-M8 AC110/DC110-120V

Rated voltage: AC110/DC110-120V;AC220-240V/DC220V;

AC380-415V;DC24V

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630
frame; 24 for 800 frame; 25 for 1600 frame

Motor-driven mechanism code

Note: The 1600 frame motor-driven mechanism is assembled in the factory and is
suitable for electronic circuit breakers and disconnectors according to the inside of the
circuit breaker.

9.5.3 Electrical characteristics

Minimum
Frame Rated operational Life(CO Power Action Making Breaking duration of
size voltage recycle) consumption current duration duration ON (OFF)
signal pulse

125A 10000 150 VA ≥ 3A ≤ 500ms ≤ 500ms 300ms

250A 10000 150 VA ≥ 3A ≤ 500ms ≤ 500ms 300ms

AC110V/DC110-120V
AC220-240V/DC220V
400/630A AC380-415V 8000 300 VA ≥ 3A ≤ 1000ms ≤ 1000ms 300ms
DC24V
800A 4000 300 VA ≥ 3A ≤ 1000ms ≤ 1000ms 300ms

1600A 7000 75VA ≥ 3A ≤ 1000ms ≤ 1000ms 300ms

9.5.4 Wiring diagram

Power
supply
P-054 Moulded Case Circuit Breakers NM8N

9.5.5 Installation dimension drawing

Overall and mounting dimension of MOD21-M8

Motor-driven
mechanism center

Product center

Overall dimension of MOD22-M8

 NM8N Moulded Case Circuit Breakers P-055

Mounting dimension of MOD22-M8

Motor-driven
mechanism center
Product center

Overall and mounting dimension of MOD23-M8

Motor-driven
mechanism center
Product center
P-056 Moulded Case Circuit Breakers NM8N

Overall and mounting dimension of MOD24-M8

Motor-driven
mechanism center

Product center
 NM8N Moulded Case Circuit Breakers P-057

9.6 SRH Economic extended rotary handle

9.6.1 Function
The unique design and transmission structure are adopted to realize the closing,
opening and re-closing operation of the circuit breaker by rotating the handle.
Protection degree: IP30
• With isolation function indication;
• O (open), I (closed) and free trip 3 position indications;
• The circuit breaker can be locked in the OFF position with 1 ~ 3 padlocks with a
diameter of 5 ~ 8mm. At this time, it can prevent the circuit breaker from closing and
the switch cabinet from opening;
• When the switch is in the ON position, the cabinet door cannot be opened under the
action of the rotary handle (if the cabinet door is opened urgently, the cabinet door
can be opened by the emergency unlocking device on the handle).

9.6.2 Model description

SRH 21-M8 3P

Number of poles: 3P; 4P (only applicable to 125, 250 frames); 400A and above
frames have no code

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame; 25 for 1600 frame

Economic extended rotary handle code

9.6.3 Installation dimension drawing

Overall and mounting dimension of SRH21-M8

Hinge
P-058 Moulded Case Circuit Breakers NM8N

Overall and mounting dimension of SRH22-M8

Hinge

Overall and mounting dimension of SRH23-M8

Hinge
 NM8N Moulded Case Circuit Breakers P-059

Overall and mounting dimension of SRH24-M8

Product center
Handle center

Hinge

Overall and mounting dimension of SRH25-M8

210 225
60

15

52

X Product center X
28.5

X1 Handle center X1
170

29
210(3P)
Min=50
280(4P) 150
Y1 Y
112
4Xø4.2

ø36
X1
150

112

X1

≥200

Y1 Y1
P-060 Moulded Case Circuit Breakers NM8N

9.7 DRH Direct rotary handle

9.7.1 Function
The unique design and transmission structure are adopted to realize the closing,
opening and re-closing operation of the circuit breaker by rotating the handle.
Protection degree: IP40
• Reliable insulation;
• With isolation function indication;
• O (open), I (closed) and free trip 3 position indications;
• The circuit breaker can be locked in the OFF position through 1~3 padlocks with a
diameter of 5 ~ 8mm.
• (Padlock user prepared)
9.7.2 Model description
DRH 21-M8 T

Circuit breaker type: T: Thermal magnetic circuit breaker, M: Magnetic circuit

breaker, SD: Switch disconnector; E: Electronic circuit breaker

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;

Direct rotary handle code

9.7.3 Installation dimension drawing

Overall dimension of DRH21-M8

Handle center

Product center

Overall dimension of DRH22-M8

Handle center

Product center
 NM8N Moulded Case Circuit Breakers P-061

Overall dimension of DRH23-M8

Handle center

Product center

9.8 ERH Extended rotary handle

9.8.1 Function
The unique design and transmission structure are adopted to realize the closing,
opening and re-closing operation of the circuit breaker by rotating the handle.
Protection degree: IP50
• Reliable insulation;
• With isolation function indication;
• O (open), I (closed) and free trip 3 position indications;
• When the switch cabinet door is open, the setting value of the circuit breaker release
can be set;
• When the switch cabinet door is opened, it can prevent the circuit breaker from
closng;
• The circuit breaker can be locked in the OFF position through (1 ~ 3) padlocks with a
diameter of (5 ~ 8) mm;
• (Padlock user prepared) can prevent the switch cabinet door from opening at this
time;
• When the switch is in the ON position, the cabinet door cannot be opened under
the action of the rotary handle (if the cabinet door is opened urgently, the cabinet
door can be opened by the emergency unlocking device on the handle).

9.8.2 Model description

ERH 21-M8 T

Circuit breaker type: T: Thermal magnetic circuit breaker, M: Magnetic circuit

breaker, SD: Switch disconnector; E: Electronic circuit breaker

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;

Extended rotary handle code

P-062 Moulded Case Circuit Breakers NM8N

9.8.3 Installation dimension drawing

Overall and mounting dimension of ERH21-M8

Handle center

Product center

Hinge

Overall and mounting dimension of ERH22-M8

Handle center

Product center

Hinge
 NM8N Moulded Case Circuit Breakers P-063

Overall and mounting dimension of ERH23-M8

Handle center

Product center

Hinge

9.9 LHD Extended handle

9.9.1 Function
With a unique design, the circuit breaker can be closed, opened and re-latched by
rotating the handle. It is only applicable to 1600A.

9.9.2 Model description

LHD 25-M8

Series code: NM8N series

Frame size code: 25 for 1600 frame

Extended handle code

9.9.3 Overall dimension

140 366max
60
o
30

210(3P)
280(4P)
P-064 Moulded Case Circuit Breakers NM8N

9.10 KLK Locking system

9.10.1 Function
The locking system locks the open position of the circuit breaker.
• The locking system can be equipped with (1 ~ 3) padlocks with a diameter range (5
~ 8) mm.
• (Padlock user prepared)）
9.10.2 Model description

KLK 21-M8

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame

Extended handle code

9.11 MIT Mechanical interlock

9.11.1 Function
When used together with two circuit breakers with the same housing, when one circuit
breaker is closed, the other circuit breaker cannot be closed and is in the open state.

9.11.2 Model description

MIT 21-M8 3P

Poles: 3P; 4P（It is only applicable to 25、250、400、630 壳架）;800 No code for

shell frame
Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame

Mechanical interlock code

9.12 TCV Short terminal cover

9.12.1 Function
Prevents contact with the main circuit and can also be used to prevent short circuit
between phases.
Protection degree: IP40
For voltages ≥ 500V, terminal covers must be fitted

9.11.2 Model description

TCV 21-M8 3P

Poles: 3P; 4P

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame

Short terminal cover code

 NM8N Moulded Case Circuit Breakers P-065

9.13 TCE Long terminal cover

9.13.1 Function
Prevents contact with the main circuit and can also be used to prevent short
circuit between phases. There are knock-out holes in front of the terminal cover to
accommodate various lug cables and front wiring.
Protection degree: IP40
For voltages ≥ 500V, terminal covers must be fitted

9.13.2 Model description

TCE 21-M8 3P

Number of poles: 3P; 4P

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame

Long terminal cover code

9.14 FCP Front connection plate

9.14.1 Function
Make the circuit breaker have a flexible wiring mode. By installing this accessory, the
pole spacing can be increased to increase the electrical gap between adjacent poles at
the inlet and outlet ends of the circuit breaker and enhance the safety between lines.

9.14.2 Model description

FCP 25-M8 3P(16001）)

Number of poles: 1P / 2P (only for 125A and 250 frames); 3P; 4P

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
25 for 1600 frame

Front connection plate code

1）
Note : Only applicable to 1600 frame, there are three specifications of 1000, 1250, 1600

9.15 RCP Rear connection plate

9.15.1 Function
Make the circuit breaker have flexible wiring mode, which can realize the wiring behind
the board

9.15.2 Model description

RCP 21-M8 2P

Number of poles: 1P / 2P (only for 125A and 250 frames); 3P; 4P

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame

Rear connection plate code

P-066 Moulded Case Circuit Breakers NM8N

9.16 CCT Cage clamp terminal

9.16.1 Function
Make the circuit breaker have a flexible wiring mode, which can directly connect the
bare wires.
9.16.2 Model description

CCT21/22-M8 CCT 21-M8

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;

Cage clamp terminal code

CCT23-M8 9.16.3 Wiring capacity

Serial No. Wiring capacity Torque
CCT21-M8 (2.5~75)mm2 8N.m
CCT22-M8 (10~120)mm2 10N.m
CCT23-M8 (120~240)mm2 35N.m

9.17 MC Cable connector

9.17.1 Function
Make the circuit breaker have a flexible wiring method, which can directly connect the
bare wires and realize the connection of multiple wires.
9.17.2 Model description
MC 25-M8(3)(12501）)

Current specifications

Number of external holes: (1) 1 hole; (2) 2 holes; (3) 3 holes; (4) 4 holes; (6) 6 holes

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame; 25 for 1600 frame;

Cable connector code

Note1）: Only applicable to 1600 housing, only 800-1250 specifications

9.17.3 Wiring capacity

Serial No. Wiring capacity Torque Note
MC21-M8 (1) (16~95)mm2 10N.m 1hole
MC22-M8 (1) (35~240)mm2 30N.m 1hole
MC22-M8 (2) 2x(35~120)mm2 30N.m 2holes
MC22-M8 (6) 6x(10~35)mm2 10N.m 6holes
MC23-M8 (2) 2x(120~240)mm2 35N.m 2holes
MC23-M8 (4) 4x95mm2 15N.m 4holes
MC24-M8 (2) 2x240mm2 35N.m 2holes
MC25-M8(800) (3) 3x(95~300)mm2 35N.m 3holes
MC25-M8(1000/1250) (4) 4x(95~240)mm2 35N.m 4holes

9.18 PIA Plug-in base

9.18.1 Function
• Quickly change the circuit breaker without changing the inlet and outlet wires and
installing the base;
• Plug-in base can be pre-installed, which is convenient for customers to add circuit
breakers in the future;
• When the circuit breaker is installed through the board or the base, the power circuit
can be isolated;
• With plug-in safety device function (optional), it can ensure that the circuit breaker
can trip automatically when it is pulled out when the circuit breaker is closed.
9.18.2 Model description
PIA 21F-M8 3P

Number of poles: 3P; 4P

Series code: NM8N series

Code of wiring method: F for front connection; B for rear connection

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;

Plug-in base code

 NM8N Moulded Case Circuit Breakers P-067

9.19 PISDPISD Plug-in safety device

9.19.1 Function
Used together with the plug-in base, it can ensure that the circuit breaker can
automatically trip when it is pulled out when the circuit breaker is closed.

9.19.2 Model description

PISD 21-M8 T

Circuit breaker type: T thermal magnetic circuit breaker; E electronic circuit breaker

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;

Plug-in safety device code

9.20 DOB Draw-out base

9.20.1 Function
• Quickly change the circuit breaker without changing the inlet and outlet wires and
installing the base;
• Withdrawable base can be installed in advance to provide convenience for customers
to add circuit breakers later;
• With plug-in safety device function (optional), it can ensure that the circuit breaker can
automatically trip when it is pulled out when the circuit breaker is closed.

9.20.2 Model description

DOB 23F-M8 3P(400A)1）

Number of poles: 3P; 4P

Series code: NM8N series

Code of wiring method: F for front connection; B for rear connection

Frame size code: 23 for 400/630 frame;24 for 800 frame

Draw-out base code

Note1）: DOB23 is suitable for 400/630 housings. There are two specifications of 400 and 630.

9.21 DOSD Draw-out safety device

9.21.1 Function
Used together with the plug-in base, it can ensure that the circuit breaker can
automatically trip when it is pulled out when the circuit breaker is closed.

9.21.2 Model description

DOSD 23-M8 T

Circuit breaker type: T thermal magnetic circuit breaker; E electronic circuit breaker

Series code: NM8N series

Frame size code: 23 for 400/630 frame; 24 for 800 frame;

Plug-in safety device code

P-068 Moulded Case Circuit Breakers NM8N

9.22 DRA DIN-rail adapter

9.22.1 Function
Adapt to the body and can be mounted on a 35mm standard DIN rail

9.22.2 Model description

DRA 21-M8 3P

Number of poles: 3P; 4P

Series code: NM8N series

Frame size code: 21 for 125 frame; 22 for 250 frame;

DIN-rail adapter code

9.23 COMA communication module

9.23.1 Function
The COMA communication module is an interface module for the communication
between the electronic plastic case circuit breaker and the bus system, and performs
communication and relay control output. Combined with the Modbus-RTU
communication protocol, this communication module can easily establish a connection
with a fieldbus master device to achieve three remote or four remote functions.
The technical parameters are as follows:
• Rated voltage: AC230V or DC24V (error range ± 15%)
• Communication type: RS485 (Modbus-RTU protocol)
• Contact capacity: AC250V / 3A; DC30V / 3A
• Transmission medium: shielded twisted pair
• Transmission distance: 1.2km (using category A shielded twisted pair)
• Working status indication: LED indication
• Number of stations: 1 station
9.23.2 Model description
COMA22-M8 DC24V

Rated voltage: AC230V, DC24V

Series code: NM8N series

Frame code: 22 is a universal accessory for electronic molded case circuit breakers

Communication module code

9.23.3 Communication solution

Achievable
Solutions Required products and accessories Note
function
NM8N basic or standard electronic molded case
Remote mea-
Solution 1 circuit breaker; 1.Read phase current
sure
COMA22-M8 communication module.
NM8N basic or standard electronic moulded case
circuit breaker; 1. Read phase current
Remote
COMA22-M8 communication module; 2. Indicate circuit breaker
Solution 2 measure
AX auxiliary contact (optional, indicating opening position information (open,
Remote signal
and closing status); closed, trip status)
AL alarm contact (optional, indicating trip status).
NM8N basic or standard electronic moulded case
1. Read phase current
Remote circuit breaker;
2. Indicate circuit breaker
measure COMA22-M8 communication module;
position information (open,
Solution 3 Remote signal AX auxiliary contact (optional, indicating opening
closed, trip status)
Remote and closing status);
3. Control circuit breaker
control AL alarm contact (optional, indicating trip status);
opening and closing
MOD electric operation mechanism.
1. Read phase current
2. Indicate circuit breaker
position information (open,
Remote mea- NM8N standard electronic molded case circuit
closed, trip status)
sure breaker;
3. Control circuit breaker
Remote signal COMA22-M8 communication module;
opening and closing
Solution 4 Remote con- AX auxiliary contact (optional, indicating opening
4. Adjust the internal parameter
trol and closing status);
settings of the controller
Remote ad- AL alarm contact (optional, indicating trip status);
(only for standard specifications.
justment MOD electric operation mechanism.
For details, please
refer to the communication
protocol).
 NM8N Moulded Case Circuit Breakers P-069

9.24 PSU battery box

9.24.1 Function
Provide DC 9V power for the standard (liquid crystal) controller for users to view, set
and modify controller parameters. Ranch
Output voltage: DC 9V
Continuous power supply time: 7 hours

9.24.2 Model description

PSU22-M8

Series code: NM8N series

Frame code: 22 is a universal accessory for standard (liquid

crystal) electronic molded case circuit breakers
Battery box code

9.25 CEM Closing electromagnet

9.25.1 Function
The closing electromagnet is used to close the circuit breaker by remote control.
When the circuit breaker is in the open and energy storage state at the same time, the
breaker can be closed at any time. The closing electromagnet device has both AC and
DC control. When the power supply voltage is equal to any voltage value between 85%
and 110% of the rated control power voltage, closing electromagnet can reliably close
the circuit breaker. The working mode of the closed electromagnet is a short-time
work system. It cannot be allowed to be energized for a long time. The energization
time is between 0.2s and 2s, otherwise there is a danger of being burned.
9.25.3 Model description
CEM25-M8 AC48V

Rated voltage: AC48V/110V/220-240V/380-415V

DC24V/DC48V/110-120V/220V

Series code: NM8N series

Frame code: 25 represents 1600 frame

Closing electromagnet code

Note：Applicable to 1600 frame motor type.

9.25.4 Electrical characteristics

AC48V/110V /220-260V/380-415V
Rated working voltageUe (V)
DC24V/48V/110-120V220V
Voltage range 85-110%
Pulse duration range (s) 0.2~2
AC 5VA
Power
consumption
DC 5W
Circuit breaker closing time (ms) <70
Breaker opening time (ms) 50±10
Rated insulation voltage (kV) 2
Peak current 6XIn

9.26 PHS Phase barrier

9.26.1 Function
Guarantees phase-to-phase insulation safety and prevents phase-to-phase short circuits
9.26.2 Model description
PHS 21-M8

Series code: NM8N series

Shell code: 21 for 125 frame; 22 for 250 frame; 23 for 400/630 frame;
24 for 800 frame; 25 for 1600 frame

Phase barrier code, standard accessory.

P-070 Moulded Case Circuit Breakers NM8N

9.26 Installation diagram of internal accessories

Left ON Right
Mounting and wiring mode
Handle OFF
Accessory name
NM8N-125, 250 NM8N-400, 630
NM8N-800 NM8N-1600 NM8N-1600 MOD
NM8NL-125, 250 NM8NL-400, 630

3P, 4P 3P, 4P 3P, 4P 3P, 4P 3P, 4P

No accessory

Alarm contact

Auxiliary contact

Shunt release

Under-voltage release

Shunt release
Auxiliary contact

Auxiliary contact
Under-voltage release

Shunt release
Alarm contact

Auxiliary contact
Alarm contact

Under-voltage release
Alarm contact
Shunt release
Auxiliary contact, alarm
Auxiliary contact
alarm contact
Under-voltage release

■-Shunt release ▲-Under-voltage release ○-Auxiliary contact ●-Alarm contact

Note: a. NM8N-125, 250, 400, 630, 800 cannot be equipped with undervoltage release and shunt release at the same time;
b. NM8N-125, 250 3P / 4P can be equipped with a maximum of 2 sets of auxiliary contacts; 1P has no internal accessories; 2P can be equipped with a
maximum of one auxiliary / alarm contact at the same time;
c. NM8N-400, 630 can install up to 3 sets of auxiliary contacts;
d. NM8N-800 can be equipped with up to 4 auxiliary contacts;
e. NM8N-1600 MOD can be equipped with a maximum of 3 sets of auxiliary contacts, and can simultaneously install undervoltage release and shunt release;
f. NM8N series can only be equipped with one alarm contact.
 NM8N Moulded Case Circuit Breakers P-071

10. Technical Supplement

10.1 DC application wiring method

Solutions Unipolar grounding system Ungrounded system

i i
a a

+ +
U R U R
- -
Circuit diagram B B
b b
C A C A

maximum short-circuit
Fault A current Isc Fault A has no effect

Impact of fault maximum short-circuit maximum short-circuit

Fault B Fault B
current Isc current Isc

Fault C has no effect Fault C has no effect

Load

Load

Note: 1. The upper and lower lines can be used, here the Note: 1. Both the upper and lower lines can be used, here the
注：1. 上、下进线皆可，此处以下进线为例；
following lines are taken as an example. following lines are taken as an example; 2. Make sure that the
installation2. 确保安装方式不会发生二次接地故障。
method does not cause a secondary ground fault.

Load

DC500~750V

Load

Note: 1. The upper and lower lines can be used, here the Note: 1. Both the upper and lower lines can be used, here the
following lines are taken as an example. following lines are taken as an example; 2. Make sure that the
installation method does not cause a secondary ground fault.

Load

DC750~1000V
Load

Load

Note: 1. The upper and lower lines can be used, here the
following lines are taken as an example.
P-072 Moulded Case Circuit Breakers NM8N

10.2 NM8N power loss table

Fixed circuit breaker Power loss

Rated current
Release type Model resistance loss per pole per pole
(A)
mΩ (W)
16 8.8 2.3
20 8.8 3.5
25 5.2 3.3
32 4.5 4.6
40 2.6 4.2
NM8N-125
50 1.8 4.5
63 1.7 6.7
80 1.3 8.3
100 0.88 8.8
125 0.8 12.5
125 0.7 10.9
160 0.55 14.1
180 0.55 17.8
NM8N-250
200 0.55 22.0
Thermal 225 0.4 20.3
magnetic 250 0.4 25.0
250 0.35 21.9
315 0.25 24.8
NM8N-400
350 0.25 30.6
400 0.15 24.0
400 0.15 24.0
NM8N-630
500 0.12 30.0
500 0.08 20.0
630 0.08 31.8
NM8N-800
700 0.08 39.2
800 0.08 51.2
800 0.08 51.2
1000 0.08 80.0
NM8N-1600
1250 0.04 62.5
1600 0.04 102.4
32 0.8 0.8
63 0.4 1.6
NM8N-250 100 0.4 4.0
160 0.4 10.2
250 0.4 25.0
250 0.15 9.4
NM8N-400
400 0.15 24.0
Electronic
400 0.15 24.0
NM8N-630
630 0.12 47.6
NM8N-800 800 0.08 51.2
800 0.08 51.2
1000 0.08 80.0
NM8N-1600
1250 0.04 62.5
1600 0.04 102.4
63 0.8 3.2
NM8NSD-125 100 0.8 8.0
125 0.8 12.5
125 0.4 6.3
160 0.4 10.2
Switch NM8NSD-250
disconnector
200 0.4 16.0
250 0.4 25.0
250 0.15 9.4
NM8NSD-400
400 0.15 24.0
NM8NSD-630 630 0.12 47.6
NM8NSD-800 800 0.08 51.2
 NM8N Moulded Case Circuit Breakers P-073

10.3 NM8N thermal magnetic circuit breaker rated operational current and temperature compensation coefficient table

Ambient
temperature -40℃ -35℃ -25℃ -15℃ -5℃ 0℃ +10℃ +20℃ +30℃ +40℃ +50℃ +60℃ +70℃
Rated current
16A 22.5 22 20.5 20 19.5 19 18.5 17.5 17 16 15 14.5 14

20A 28 27.5 26.5 25.5 24.5 24 23 22 21 20 19.5 18.5 18

25A 35 34 33 32 30.5 30 28 27 26 25 24 22.5 22

32A 45 44 42 41 39 38 37 35 33 32 30.5 29 28

NM8N- 40A 56 55 53 51 49 48 46 44 42 40 37 33.5 29

125 50A 70 68.5 66 64 61 60 57.5 55 52.5 50 47.5 45 40

63A 88 86.5 83 80 77 75 72 69 66 63 58.5 53 46

80A 112 110 106 102 98 96 92 88 84 80 74.5 67 56

100A 140 137 132 127 122 120 115 110 105 100 93 84 80

125A 175 172 165 159 153 150 144 137 131 125 116 105 91

125A 175 172 165 159 153 150 144 137 131 125 118 106 96

160A. 224 220 212 204 196 192 184 176 168 160 152 136 120

NM8N- 180A 252 247 238 229 220 216 207 198 189 180 171 157 144
250 200A 280 275 265 255 245 240 230 220 210 200 190 175 166

225A 315 309 300 288 276 270 259 247 236 225 213 196 180

250A 350 343 332 319 306 300 287 275 262 250 237 218 207

250A 350 343 332 319 306 300 287 275 262 250 237 225 212

NM8N- 315A 441 433 418 402 386 378 362 346 331 315 300 286 271
400 350A 490 481 465 447 429 420 402 385 367 350 332 295 276

400A 560 550 530 510 490 480 460 440 420 400 380 360 320

250A 350 343 332 319 306 300 287 275 262 250 237 225 212

315A 441 433 418 402 386 378 362 346 331 315 300 286 271
NM8N-
350A 490 481 465 447 429 420 402 385 367 350 332 295 276
630
400A 560 550 530 510 490 480 460 440 420 400 380 360 320

500A 700 687 662 637 612 600 575 550 525 500 450 406 360

500A 700 687 662 637 612 600 575 550 525 500 490 460 400

NM8N- 630A 882 866 836 804 772 756 724 693 661 630 580 530 490
800 700A 980 962 927 892 857 840 805 770 735 700 670 645 575

800A 1120 1100 1060 1020 980 960 920 880 840 800 735 670 625

800A 1120 1100 1060 1020 980 960 920 880 840 800 760 696 640

NM8N- 1000A 1400 1375 1325 1275 1225 1200 1150 1100 1050 1000 950 870 800
1600 1250A 1750 1718 1656 1594 1531 1500 1437 1375 1312 1250 1187 1088 1000

1600A 2240 2200 2120 2040 1960 1920 1840 1760 1680 1600 1520 1390 1280

Note1）：For a multi-pole DC circuit breaker, if a 2m long standard wire is used in series, the derating factor above applies.
2）
：When the copper short-circuit bar is connected in series, it needs to be further reduced based on the above table (except
NM8NDC-1600). The specific derating factor should be determined by users according to their different wiring methods. Derating
by a factor of 0.8).
P-074 Moulded Case Circuit Breakers NM8N

10.4 NM8N electronic circuit breaker rated operational current and temperature compensation coefficient table

Ambient
temperature -25℃ -15℃ -5℃ 0℃ +10℃ +20℃ +30℃ +40℃ +50℃ +60℃ +70℃
Rated current
32A 32 32 32 32 32 32 32 32 32 32 32

63A 63 63 63 63 63 63 63 63 63 63 63

NM8N-250 100A 100 100 100 100 100 100 100 100 100 100 100

160A 160 160 160 160 160 160 160 160 160 160 160

250A 250 250 250 250 250 250 250 250 240 225 213

250A 250 250 250 250 250 250 250 250 250 250 250
NM8N-400
400A 400 400 400 400 400 400 400 400 380 360 340

250A 250 250 250 250 250 250 250 250 250 250 250

NM8N-630 400A 400 400 400 400 400 400 400 400 380 360 340

630A 630 630 630 630 630 630 630 630 600 570 540

630A 630 630 630 630 630 630 630 630 630 630 630
NM8N-800
800A 800 800 800 800 800 800 800 800 760 720 680

800A 800 800 800 800 800 800 800 800 800 800 800

1000A 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
NM8N-1600
1250A 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250

1600A 1600 1600 1600 1600 1600 1600 1600 1600 1520 1440 1360

Note：Individual specifications of products need to be derated at a temperature of 50 ° C and above (parameters refer to the table), and Ir needs to be adjusted to the
corresponding gear.
For example：NM8N-250 EN 250 3P products are used at 70 ° C. The product needs to be derated to 213A, and the Ir position is adjusted to 0.8In position. The
NM8N-250 EM 250 3P product is used at 70 ° C. The product should be derated to 213A, and the Ir position should be adjusted to 213A.

10.5 Derating factor table for circuit breaker with residual current protection module

Model Derating factor

16A~63A 1

NM8N-125+NM8NL-125 80A~100A 0.9

125A 0.8

125A~180A 1
NM8N-250+NM8NL-250
200A~250A 0.9

32A、63A、100A、160A 1
NM8N-250+NM8NL-250 electronic type
250A 0.95

250A 1

NM8N-400+NM8NL-400 315A、350 0.96

400A 0.93

250A 1
NM8N-400+NM8NL-400 electronic type
400A 0.95

400A 0.93
NM8N-630+NM8NL-630
500A 0.87

400A~500A 1
NM8N-630+NM8NL-630 electronic type
630A 0.90
 NM8N Moulded Case Circuit Breakers P-075

10.6 Derating factor table for circuit breakers with plug-in or draw-out accessories

Derating factor
Model
+Plug-in type +Economic draw-out type
16A-100A 1 /
NM8N-125
125A 0.95 /
125A-180A 1 /
NM8N-250
200A-250A 0.95 /

NM8N-250 32A、63A、100A、160A 1 /
electronic type 250A 0.95 /
NM8N-400 250A-400A 1 1
NM8N-400
250A-400A 1 1
electronic type
400A 1 1
NM8N-630
500A 0.95 1

NM8N-630 400A-500A 1 1
electronic type 630A 0.9 0.9
500-700A / 0.95
NM8N-800
800A / 0.9

NM8N-800 630A / 1
electronic type 800A / 0.9

10.7 NM8N Derating factor table for circuit breakers altitude

Altitude (m) 2000m 3000m 4000m 5000m

Rated operational current In 1×In 0.96×In 0.93×In 0.9×In

AC 690 550 480 420

Rated operational voltage Ue （V）
DC（4pole string） 1000 900 850 800

Rated insulation voltage Ui （V） 1000 930 870 800

Uimp =8kV 2200 2050 1900 1770

AC
Uimp =12kV 2550 2370 2200 2050
Dielectric properties（V）
Uimp =8kV 3110 2892 2705 2488
DC
Uimp =12kV 3600 3350 3110 2985
NM8N-125
NM8N-250 8 8 8 8
Rated insulation impulse voltage NM8N-1600
Uimp （kV） NM8N-400
NM8N-630 12 10 8 8
NM8N-800
P-076 Moulded Case Circuit Breakers NM8N

10.8 Cascading (AC220/230/240V)

Upstream NM8N-125 NM8N-250 NM8N-400 NM8N-630 NM8N-800

Breaking C S Q H R C S Q H R C S Q H R C S Q H R C S Q H R
capacity
（kA rms） 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150

Downstream Breaking capacity（kA rms）

NB1N 25 30 40 60 60 25 30 40 60 60 — — — — — — — — — — — — — — —

NB1H 30 40 50 65 65 30 40 50 65 65 — — — — — — — — — — — — — — —

NM8N-125C 50 60 80 100 50 60 80 100 50 60 80 100 50 60 80 100 50 60 80 100

NM8N-125S 70 90 120 70 90 120 70 90 120 70 90 120 70 90 120

NM8N-125Q 90 140 90 140 90 140 90 140 90 140

NM8N-125H 150 150 150 150 150

NM8N-250C 50 60 80 100 50 60 80 100 50 60 80 100 50 60 80 100

NM8N-250S 70 90 120 70 90 120 70 90 120 70 90 120

NM8N-250Q 90 140 90 140 90 140 90 140

NM8N-250H 150 150 150 150

NM8N-400C 50 60 80 100 50 60 80 100 50 60 80 100

NM8N-400S 70 90 120 70 90 120 70 90 120

NM8N-400Q 90 140 90 140 90 140

NM8N-400H 150 150 150

NM8N-630C 50 60 80 100 50 60 80 100

NM8N-630S 70 90 120 70 90 120

NM8N-630Q 90 140 90 140

NM8N-630H 150 150

NM8N-800C 50 60 80 100

NM8N-800S 70 90 120

NM8N-800Q 90 140

NM8N-800H 150
 NM8N Moulded Case Circuit Breakers P-077

10.9 Cascading (AC380/400/415V)

Upstream NM8N-125 NM8N-250 NM8N-400 NM8N-630 NM8N-800

Breaking C S Q H R C S Q H R C S Q H R C S Q H R C S Q H R
capacity
（kA rms） 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150 36 50 70 100 150

Downstream Breaking capacity（kA rms）

NB1N 20 25 25 25 25 20 25 25 25 25 — — — — — — — — — — — — — — —

NB1H 30 30 30 30 30 30 30 30 30 30 — — — — — — — — — — — — — — —

NM8N-125C 50 50 80 100 50 50 80 100 50 50 80 100 50 50 80 100 50 50 80 100

NM8N-125S 70 90 120 70 90 120 70 90 120 70 90 120 70 90 120

NM8N-125Q 90 140 90 140 90 140 90 140 90 140

NM8N-125H 150 150 150 150 150

NM8N-250C 50 50 80 100 50 50 80 100 50 50 80 100 50 50 80 100

NM8N-250S 70 90 120 70 90 120 70 90 120 70 90 120

NM8N-250Q 90 140 90 140 90 140 90 140

NM8N-250H 150 150 150 150

NM8N-400C 50 50 80 100 50 50 80 100 50 50 80 100

NM8N-400S 70 90 120 70 90 120 70 90 120

NM8N-400Q 90 140 90 140 90 140

NM8N-400H 150 150 150

NM8N-630C 50 50 80 100 50 50 80 100

NM8N-630S 70 90 120 70 90 120

NM8N-630Q 90 140 90 140

NM8N-630H 150 150

NM8N-800C 50 50 80 100

NM8N-800S 70 90 120

NM8N-800Q 90 140

NM8N-800H 150
P-078 Moulded Case Circuit Breakers NM8N

10.10 Selective protection

Upstream
NM8N-125 NM8N-250 NM8N-250 Electronic

Downstream In（A）16 20 25 32 40 50 63 80 100 125 125 160 180 200 225 250 32 63 100 160 250

≤ 10 190 190 300 400 500 500 500 630 800 1000 T T T T T T 400 500 1000 T T
16 300 400 500 500 500 630 800 1000 T T T T T T 400 500 1000 T T
20 500 500 500 630 800 1000 T T T T T T 500 1000 T T

NB1 25 500 500 630 800 1000 T T T T T T 500 1000 T T

Tripping curve:B/C 32 500 630 800 1000 2000 5000 T T T T 500 1000 T T
40 630 800 1000 2000 5000 T T T T 1000 T T
50 800 1000 2000 5000 T T T T 1000 T T
63 1000 2000 5000 T T T T 1000 T T
16 400 500 500 630 800 1000 1000 2500 2500 2500 2500 2800 500 1000 2500 2800
20 500 500 630 800 1000 1000 2500 2500 2500 2500 2800 500 1000 2500 2800
25 500 630 800 1000 1000 2500 2500 2500 2500 2800 500 1000 2500 2800
32 630 800 1000 1000 2500 2500 2500 2500 2800 1000 2500 2800
40 800 1000 1000 2000 2000 2500 2500 2800 1000 2000 2800
NM8N-125
50 1000 1000 2000 2000 2500 2500 2800 1000 2000 2800
63 1000 2000 2000 2500 2500 2800 2000 2800
80 2000 2000 2500 2500 2800 2000 2800
100 2500 2500 2800 2800
125 2500 2800 2800
125
160
180
NM8N-250
200
225
250
32 1000 2000 2800
63 2000 2800
NM8N-250
100 2800
Electronic
160
250
250
315
NM8N-400
350
400

NM8N-400 250
Electronic 400
250
315
NM8N-630 350
400
500
250
NM8N-630
400
Electronic
630

Note：1） No content, meaning no selectivity.

2）
1000, which indicates local selectivity, and the number indicates the maximum fault current to achieve selectivity. For
example, selectivity below 1000A can be achieved here, and upper and lower circuit breakers above 1000A may
operate simultaneously.
3）
T, which means that full selectivity is satisfied within the breaking capacity of the lower circuit breaker.
 NM8N Moulded Case Circuit Breakers P-079

NM8N- NM8N
NM8N-630
NM8N-400 400 NM8N-630 NM8N-800 -800 NM8N-1600 NM8N-1600 Electronic
Electronic
Electronic Electronic

250 315 350 400 250 400 250 315 350 400 500 250 400 630 500 630 700 800 800 800 1000 1250 1600 800 1000 1250 1600

T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
T T T T T T T T T T T T T T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
3500 4000 5000 5000 3500 4000 5000 T 5000 T T T T T T T T T T T T T T
4000 5000 5000 4000 5000 T 5000 T T T T T T T T T T T T T T
5000 5000 5000 T 5000 T T T T T T T T T T T T T T
5000 5000 5000 T 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
2800 3500 4000 5000 2800 5000 2800 3500 4000 5000 T 2800 5000 T T T T T T T T T T T T T T
4000 5000 5000 4000 5000 T 5000 T T T T T T T T T T T T T T
5000 5000 5000 T 5000 T T T T T T T T T T T T T T
5000 5000 6000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
6000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
5000 5000 6000 5000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
5000 5000 6000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
6000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 9500 1250 1600 9500 9500 1250 1600
5000 5000 6000 5000 9500 9500 9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 9500 9500 9500 9500 12000 15000 19000 9500 12000 15000 19000
9500 1250 1600 9500 1250 1600
P-080 Moulded Case Circuit Breakers NM8N

11 .Ordering notice

11.1 Quick selection of circuit breaker

11.1.1 Quick selection of power distribution and motor protection circuit breakers11)

NM8N - 250 S TM 125 4C OTHER

Frame Breaking Special

Circuit breaker Release type Rated current(A) Poles
current(A) code requirement

EN/EM/ENM/
M: Magnetic for TM/M
EMM
motor protection
TM : Thermal 125 : 16,20,25 1P : One pole
Magnetic for 32,40,50,63,80 — 2P : Two-pole
Distribution 100,125 3P : Three-pole
Protection 4B : Four-pole2)
EN: Electronic 4C : Four-pole2)
250 : 125,160,180 250 : 32,63,100
Basic for
200,225,250 160,250
125 C : 36kA Distribution
250 S : 50kA Protection
400 Q : 70kA EM: Electronic
630 H : 100kA Standard for 400 : 250,315
400 : 250,400
800 R : 150kA Distribution 350,400
Protection
ENM: Electronic 3P : Three-pole
Basic for Motor 630 : 400,500 630 : 400,630 4B : Four-pole2)
NM8N Protection 4C : Four-pole2)
moulded case EMM: Electronic
circuit breaker Standard
800 : 500,630
for Motor 800 : 630,800
700,800
Protection

TM: Thermal TM/EN/EM

Magnetic for
Distribution
Protection
EN: Electronic 3P : Three-pole MOD DC1103)
S : 50kA
Basic for 4B : Four-pole2) MOD DC2203)
1600 Q : 70kA
Distribution 4C :Four-pole2) MOD AC2303)
H : 100kA 1600 : 800,1000,1250,1600 MOD AC4003)
Protection
EM: Electronic
Standard for
Distribution
Protection

Note：1）For customer needs beyond the technical requirements of the sample, you can contact the company's sales department or technical department as a special
order processing; The body and accessories should be written separately when ordering. If the user requires the factory to assemble the body and accessories,
it must be specified when ordering, otherwise the factory will ship separately; Motor protection is only applicable to 3P / 4P;
2）
4B：Neutral poles without protection, can be operated with other three poles; 4C: Neutral poles with protection, can be operated with other three poles.
3）
Only NM8N-1600 has motor type
 NM8N Moulded Case Circuit Breakers P-081

11.1.2 Quick selection of DC circuit breaker

NM8N DC - 250 S TM 125 2P OTHER

Rated Special
Current type Frame current(A) Breaking code Release type Poles
current(A) requirement

125 : 16,20,25
32,40,50,63,80
100,125

250 : 125,160
125 B : 25kA 180,200,225 1P : One pole1)
TM : Thermal
250 C : 36kA 250 2P : Two-pole1)
Magnetic
400 S : 50kA 3P : Three-pole
for Distribution
630 Q : 70kA 400 : 250,315 4P : Four-pole
Protection
800 H : 100kA 350,400
DC : Direct current
630 : 400,500

800 : 500,630
700,800

TM : Thermal
B : 25kA Magnetic 1600 : 800,100 3P : Three-pole
1600
C : 36kA for Distribution 1250,1600 4P : Four-pole
Protection

Note：1）1P / 2P is limited to 125 and 250 frame products.

P-082 Moulded Case Circuit Breakers NM8N

11.1.3 Quick selection of Residual current circuit breaker/Residual current protection module1)
NM8N L - 250 S TM 125 4C A RCD1 ALT

Residual Residual Residual

current current Frame Breaking current Rated residual Special
Release type3) Poles
protection protection current(A) code3) type current code requirement
code code code

EN/EM/
TM/M ENM/
EMM
TM: Thermal 3P : Three poles
Magnetic 125 : 16,20 4B : Four poles2) RCD1: 0.03-0.1-0.3-
for Distribution 25,32,40,50 4C : Four poles2) 1A adjustable (for
—
Protection 63,80,100 125,250,400,630A)
EN: Electronic Basic 125 Residual current Default:
for Distribution protection RCD2: 0.05-0.2-0.5- No special
Protection module has no 2A adjustable requirements
125 C : 36kA
EM: Electronic 250 : 125 250 : neutral pole code (for 125,250A)
Residual 250 S : 50kA Default:
Standard 160,180 32,63,100 ALT: Leakage
current 400 Q : 70kA AC type
for Distribution 200,225,250 160,250 RCD3: 0.05-0.2- alarm with trip
protection 630 H : 100kA A: A type
Protection 0.5-2A adjustable
R : 150kA
M: Magnetic for (suitable for ALNT: Leakage
Motor Protection 3P : Three poles 400,630A) alarm without
ENM: Electronic Basic 400 : 250 400 : 4B : Four poles2) trip
for Motor Protection 315,350,400 250,400 4C : Four poles2) RCD4: 0.1-0.3-1-2A
EMM: Electronic adjustable (suitable
Standard for Motor Residual current for 400,630A)
Protection protection
630 : 630 : module has
400,500 400,630 noneutral
polecode

Note：1）For customer needs beyond the technical requirements of the sample, you can contact the company's sales department or technical
department as a special order processing; The body and accessories should be written separately when ordering. If the user requires
the factory to assemble the body and accessories, it must be specified when ordering, otherwise the factory will ship separately; Motor
protection is only applicable to 3P / 4P;
2）
4B：Neutral poles without protection, can be operated with the other three phases; 4C: Neutral poles with protection, can be operated
with the other three phases;
3）
Residual current protection module selection does not have this code, for example: NM8NL-250 4C A RCD1 ALT means 250A frame, 4
poles, A type residual current protection, residual operating current 0.03-0.1-0.3-1A, with Residual current protection module with
leakage alarm trip function.
 NM8N Moulded Case Circuit Breakers P-083

11.1.4 Quick selection of switch disconnector

NM8N SD - 250 AC 125 2P OTHER

Switch Special
Frame current (A) Release type Frame current (A) Poles
disconnector requirement

125 : Default

250 : Default
125
2P : Two-pole1)
250 AC: Alternating
SD : Switch 400 : Default 3P : Three-pole
400 current
disconnector 4P : Four-pole
800 DC: Direct current
800 : Default
1600

1600 : 800,1000
1250,1600

Note：1）2P is only for 125 and 250 frame products.

P-084 Moulded Case Circuit Breakers NM8N

11.2 NM8N accessory models selection table

Accessory type Code Specification NM8N-125 NM8N-250

Universal AX21-M8
Auxiliary contact AX
Neutral AX21-M8 N
Universal AL21-M8
Alarm contact AL
Neutral AL21-M8 N
AC48V SHT21-M8 AC48V SHT22-M8 AC48V
AC110V SHT21-M8 AC110V SHT22-M8 AC110V
AC220-240V SHT21-M8 AC220-240V SHT22-M8 AC220-240V
Shunt release SHT AC380-415V SHT21-M8 AC380-415V SHT22-M8 AC380-415V
DC24V SHT21-M8 DC24V SHT22-M8 DC24V
DC48V SHT21-M8 DC48V SHT22-M8 DC48V
DC220V SHT21-M8 DC220V SHT22-M8 DC220V
AC48V UVT21-M8 AC48V UVT22-M8 AC48V
AC110V UVT21-M8 AC110V UVT22-M8 AC110V
AC220-240V UVT21-M8 AC220-240V UVT22-M8 AC220-240V
AC380-415V UVT21-M8 AC380-415V UVT22-M8 AC380-415V
Under-voltage release UVT
DC24V UVT21-M8 DC24V UVT22-M8 DC24V
DC48V UVT21-M8 DC48V UVT22-M8 DC48V
DC110-120V UVT21-M8 DC110-120V UVT22-M8 DC110-120V
DC220V UVT21-M8 DC220V UVT22-M8 DC220V
AC48V / /
AC110V / /
AC220-240V / /
AC380-415V / /
Closing electromagnet CEM
DC24V / /
DC48V / /
DC110-120V / /
DC220V / /
AC110/DC110-120V MOD21-M8 AC110/DC110-120V MOD22-M8 AC110/DC110-120V
AC220-240/DC220V MOD21-M8 AC220-240V/DC220V MOD22-M8 AC220-240V/DC220V
Motor-driven mechanism MOD
AC380-415V MOD21-M8 AC380-415V MOD22-M8 AC380-415V
DC24V MOD21-M8 DC24V MOD22-M8 DC24V
Economic extended 3P SRH21-M8 3P SRH22-M8 3P
SRH
rotary handle 4P SRH21-M8 4P SRH22-M8 4P
Thermal magnetic (T) DRH21-M8 T DRH22-M8 T
Magnetic（M） DRH21-M8 M DRH22-M8 M
Direct rotary handle DRH Electronic (E) / DRH22-M8 E
Switch
DRH21-M8 M DRH22-M8 SD
disconnector（SD）
Thermal magnetic (T) ERH21-M8 T ERH22-M8 T
Magnetic（M） ERH21-M8 M ERH22-M8 M
Extended rotary handle ERH Electronic (E) / ERH22-M8 E
Switch
ERH21-M8 M ERH22-M8 SD
disconnector（SD）
Extended rotary handle LHD 3P/4P / /
Locking system KLK KLK21-M8 KLK22-M8
3P MIT21-M8 3P MIT22-M8 3P
Mechanical interlock MIT
4P MIT21-M8 4P MIT22-M8 4P
3P TCV21-M8 3P TCV22-M8 3P
Short terminal cover TCV
4P TCV21-M8 4P TCV22-M8 4P
3P TCE21-M8 3P TCE22-M8 3P
Long terminal cover TCE
4P TCE21-M8 4P TCE22-M8 4P
1P FCP21-M8 1P FCP22-M8 1P
2P FCP21-M8 2P FCP22-M8 2P
Front connection plate FCP
3P FCP21-M8 3P FCP22-M8 3P
4P FCP21-M8 4P FCP22-M8 4P
1P RCP21-M8 1P RCP22-M8 1P
2P RCP21-M8 2P RCP22-M8 2P
Rear connection plate RCP
3P RCP21-M8 3P RCP22-M8 3P
4P RCP21-M8 4P RCP22-M8 4P
Cage clamp terminal CCT 1hole CCT21-M8 CCT22-M8
1hole MC21-M8(1) MC22-M8(1)
2hole / MC22-M8(2)
Cable connector MC 3hole / /
4hole / /
6hole / MC22-M8(6)
3P Front connection PIA21F-M8 3P PIA22F-M8 3P
4P Front connection PIA21F-M8 4P PIA22F-M8 4P
Plug-in base PIA
3P Rear connection PIA21B-M8 3P PIA22B-M8 3P
4P Rear connection PIA21B-M8 4P PIA22B-M8 4P
Thermal magnetic (T) PISD21-M8 T PISD22-M8 T
Plug-in safety device PISD
Electronic (E) / PISD22-M8 E
3P Front connection / /
4P Front connection / /
Draw-out base DOB
3P Rear connection / /
4P Rear connection / /
Thermal magnetic (T) / /
DIN-rail adapter DOSD
Electronic (E) / /
3P DRA21-M8 3P DRA22-M8 3P
DIN-rail adapter DRA
4P DRA21-M8 4P DRA22-M8 4P
/ COMA22-M8 DC24V 0.5m
DC24V / COMA22-M8 DC24V 1.5m
/ COMA22-M8 DC24V 3m
Communication module COMA
/ COMA22-M8 AC230V 0.5m
AC230V / COMA22-M8 AC230V 1.5m
/ COMA22-M8 AC230V 3m
Battery box PSU / PSU22-M8
Phase barrier PHS PHS21-M8 PHS22-M8
 NM8N Moulded Case Circuit Breakers P-085

NM8N-400 NM8N-630 NM8N-800 NM8N-1600

AX21-M8
AX21-M8 N
AL21-M8
AL21-M8 N
SHT22-M8 AC48V SHT24-M8 AC48V SHT25-M8 AC48V
SHT22-M8 AC110V SHT24-M8 AC110V SHT25-M8 AC110V
SHT22-M8 AC220-240V SHT24-M8 AC220-240V SHT25-M8 AC220-240V
SHT22-M8 AC380-415V SHT24-M8 AC380-415V SHT25-M8 AC380-415V
SHT22-M8 DC24V SHT24-M8 DC24V SHT25-M8 DC24V
SHT22-M8 DC48V SHT24-M8 DC48V SHT25-M8 DC48V
SHT22-M8 DC220V SHT24-M8 DC220V SHT25-M8 DC220V
UVT22-M8 AC48V UVT24-M8 AC48V UVT25-M8 AC48V
UVT22-M8 AC110V UVT24-M8 AC110V UVT25-M8 AC110V
UVT22-M8 AC220-240V UVT24-M8 AC220-240V UVT25-M8 AC220-240V
UVT22-M8 AC380-415V UVT24-M8 AC380-415V UVT25-M8 AC380-415V
UVT22-M8 DC24V UVT24-M8 DC24V UVT25-M8 DC24V
UVT22-M8 DC48V UVT24-M8 DC48V UVT25-M8 DC48V
UVT22-M8 DC110-120V UVT24-M8 DC110-120V UVT25-M8 DC110-120V
UVT22-M8 DC220V UVT24-M8 DC220V UVT25-M8 DC220V
/ / CEM25-M8 AC48V
/ / CEM25-M8 AC110V
/ / CEM25-M8 AC220-240V
/ / CEM25-M8 AC380-415V
/ / CEM25-M8 DC24V
/ / CEM25-M8 DC48V
/ / CEM25-M8 DC110-120V
/ / CEM25-M8 DC220V
MOD23-M8 AC110/DC110-120V MOD24-M8 AC110/DC110-120V MOD25-M8 AC110/DC110-120V
MOD23-M8 AC220-240V/DC220V MOD24-M8 AC220-240V/DC220V MOD25-M8 AC220-240V/DC220V
MOD23-M8 AC380-415V MOD24-M8 AC380-415V MOD25-M8 AC380-415V
MOD23-M8 DC24V MOD24-M8 DC24V MOD25-M8 DC24V
SRH23-M8 SRH24-M8 SRH25-M8
DRH23-M8 T / /
DRH23-M8 M / /
DRH23-M8 E / /
DRH23-M8 SD / /
ERH23-M8 T / /
ERH23-M8 M / /
ERH23-M8 E / /
ERH23-M8 SD / /
/ / LHD25-M8
KLK23-M8 / /
MIT23-M8 3P /
MIT24-M8
MIT23-M8 4P /
TCV23-M8 3P TCV24-M8 3P /
TCV23-M8 4P TCV24-M8 4P /
TCE23-M8 3P TCE24-M8 3P /
TCE23-M8 4P TCE24-M8 4P /
/ / /
/ / /
FCP23-M8 3P / FCP25-M8 3P
FCP23-M8 4P / FCP25-M8 4P
/ / /
/ / /
RCP23-M8 3P RCP24-M8 3P /
RCP23-M8 4P RCP24-M8 4P /
CCT23-M8 / /
/ / /
MC23-M8(2) MC24-M8(2) /
/ / MC25-M8(3)(800)
MC23-M8(4) / MC25-M8(4)(1000/1250)
/ / /
PIA23F-M8 3P / /
PIA23F-M8 4P / /
PIA23B-M8 3P / /
PIA23B-M8 4P / /
PISD23-M8 T PISD24-M8 T /
PISD23-M8 E PISD24-M8 E /
DOB23F-M8 3P(400A) DOB23F-M8 3P(630A) DOB24F-M8 3P /
DOB23F-M8 4P(400A) DOB23F-M8 4P(630A) DOB24F-M8 4P /
DOB23B-M8 3P(400A) DOB23B-M8 3P(630A) DOB24B-M8 3P /
DOB23B-M8 4P(400A) DOB23B-M8 4P(630A) DOB24B-M8 4P /
DOSD23-M8 T DOSD24-M8 T /
DOSD23-M8 E DOSD24-M8 E /
/ / /
/ / /
COMA22-M8 DC24V 0.5m
COMA22-M8 DC24V 1.5m
COMA22-M8 DC24V 3m
COMA22-M8 AC230V 0.5m
COMA22-M8 AC230V 1.5m
COMA22-M8 AC230V 3m
PSU22-M8
PHS23-M8 PHS24-M8 PHS25-M8
P-001 Moulded Case Circuit Breakers NXM series moulded case circuit breaker

Accessories

1 Body

2 Alarm contact (optional)

3 Motor-driven mechanism (optional)

4 Auxiliary contact (optional)

5 Connection plate (optional)

6 Shunt release (optional)

7 Communication module(optional)
1

8 Rear connection plate (optional)

9 Under voltage release (optional)

10 Interphase barrier (standard)

11 Plug-in basement(optional) 2

12 Handheld test module(optional)

13 Manual operation mechanism (optional)

7
NXM Series Moulded Case Circuit Breaker Moulded Case Circuit Breakers P-002

10
9

13
12

11
P-003 Moulded Case Circuit Breakers Overview

NXM series moulded case circuit breaker

Breaker

The moulded case circuit breaker will provide protection for the circuit and equipment in
case of overload, short circuit and under voltage condition occurred in the power distribution
circuit. Besides, it can also provide protection of overload, short circuit and under voltage for
the non-frequent start of motor

▪ Frame size:

NXM-250S/4300A
NXM series moulded case circuit breaker: 63A, 125A, 160A, 250A, 400A, 630A,
800A, 1000A, 1250A, 1600A
NXMS series electronic breaker: 160A, 250A, 400A, 630A, 1000A, 1250A, 1600A
▪ Rated operational voltage: Ue (VAC): 220/230/240, 380/400/415, 690
▪ Breaking capacity code: E, S, F, H
▪ Number of poles: 2P, 3P, 4P
▪ Release type:thermal magnetic fixed type; magnetic fixed type; electronic type.
▪ Installation method: Fixed type; plug-in type

NXMS-250H/3300

Nameplate interpretation
NXM-250S/4300A
1
In:250A
2 Ui:800V Uimp:8kV 1 Product type: Frame size; breaking capacity; poles number
3 50/60Hz Cat A 6
o
4 Ii:10In +40 C 7 2 In: Rated operational current
5 8

3 Ui: Rated insulation voltage

9
ZHEJIANG CHINT ELECTRICS CO.,LTD 4 Frequency of A.C.
5 Ii: 10In: Multiple of current of transient behavior
6 Uimp: Rated impulsive withstand voltage
7 Cat A: Utilization category of breaker
8 +40℃: Ambient temperature
Ue Icu/Ics
10 (V) (kA) 12 9 Electrical symbol for circuit breaker with isolating function
220/230/240 50/30
380/400/415 36/20 10 Ue: Rated operational voltage
IT 11 The product is in conformity with standard IEC/EN 60947.2
IEC/EN 60947-2
11 Arc isolation board must be installed 12 Icu/Ics: Ultimate short circuit breaking capacity/Service short circuit breaking
capacity

NXM Nameplate of thermomagnetic

stationary molded case circuit breaker
 Overview Moulded Case Circuit Breakers P-004

1 Product type: Frame size; breaking capacity; poles number

2 In: Rated operational current

NXMS-250H/3300 3 IR: Long-time-delay setting current range

1
In:250A 4 Ui: Rated insulation voltage
2 IR 125A~250A
3 Ui:800V Uimp:8kV 5 Frequency of A.C.
4 50/60Hz Cat A 6

Uimp: Rated impulsive withstand voltage

M
5 7 6

8 7 Cat A: Utilization category of breaker

ZHEJIANG CHINT ELECTRICS CO.,LTD

8 Electrical symbol for circuit breaker with isolating function

9 Ue: Rated operational voltage
10 The product is in conformity with standard IEC/EN 60947.2
11 Icu/Ics: Ultimate short circuit breaking capacity/Service short circuit breaking
capacity
Ue Icu/Ics
9 (V) (kA) 11
220/230/240 75/50
380/400/415 50/36

IEC/EN 60947-2 IT
10 Arc isolation board must be installed

Nameplate of NXM electronic

molded case circuit breaker

Electronic release

Run
.... 0.9IR
__ 1.2IR
PTU T
160 180 60 80 4 5 6 8
0.5 1 3 6 4 10
150 200
140 225 2 8 3 12 TR
OFF OFF 12 100
125 250 1.5 OFF 2 OFF 0.3s
N× (In) IR (A) TR (S) Isd (IR ) Ii (xI n )
IR 2IR Isd Ii I

1 2 3 4 5 6 7

1 PTU interface
2 Neutral pole protection current setting, with 2 steps of current that is
adjustable and can be turned off (OFF)
3 Rated current setting with 8 steps
4 Long-time-delay (S) setting with 4 steps
5 Short-time-delay current Isd setting with 7 steps that is adjustable and can be
turned off (OFF)
6 Instantaneous action current Ii setting with 7 steps and that can be turned off (OFF)

7 Current-time protection curve

 P-007 Moulded Case Circuit Breakers Overview

Compliant with standard

▪ Product standard
IEC 60947-1(General rules)

IEC 60947-2(Breaker)

IEC 60947-3(switch, disconnector)

IEC 60947-4(motor, drive)

▪ Use standard in extreme environment

IEC 60068-2-1(low temperature)

IEC 60068-2-2(dry heat)

IEC 60068-2-11(salt mist)

IEC 60068-2-30(damp and hot)

Anti-humid heat capacity

The product has passed the environmental test of dry cold, dry heat, and wet heat and the like. It can operate reliably under extreme
environmental conditions.
 Overview Moulded Case Circuit Breakers P-008

Environment temperature

It must calculate according to the temperature compensation coefficient table provided in the sample in the event the temperature is lower
than -5℃ or higher than 40℃.

Altitude and pollution degree

The installation altitude of normal operation is 2000 m and below. The product can operate reliably in pollution degree III environment
In case of higher than 2000m, it must consider the decrease of defined in IEC 60947-1and 60664-1(industrial environment).
dielectric strength and colder air. The amendment action shall be
implemented according to the altitude derating factor table
provided in the sample.

Protection grade

The product is in conformity with the standard requirements of

IEC 60529 (enclosure protection grade).
Product body: protection grade is IP30 (except the wiring
terminal position)

▪ Installation of cabinet door

Equipped with toggle handle: the protection grade is IP40
Equipped with rotation handle: the protection grade is IP50
Equipped with motor-driven mechanism: the protection
grade is IP40
 P-027 Moulded Case Circuit Breakers Functions and features

Technical Parameters
NXM series moulded case circuit breaker

Frame Size, rated current Inm (A) 63 125 160 250

10,16,20,25,30,32,
10,16,20,25,30, 32,40,50,60,63,70,75,80,
Rated current In (A), 40℃, 55℃ 40,50,60,63,70,75, 160,170,180,200,225,250
32,40,50,60,63 100,125,140,150,160
80,100,125

Rated insulation voltage Ui(V) 800 800 800 800

Rated impulse withstand voltage Uimp(kV) 8 8 8 8
Rated operational voltage Ue(V), AC50/60Hz 220/230/240, 380/400/415/500 220/230/240, 380/400/415/500 220/230/240, 380/400/415 220/230/240, 380/400/415

Breaking capacity code E S F H E S F H E S F H E S F H

2P ▪ ▪ - - ▪ ▪ - - ▪ ▪ - - ▪ ▪ - -
Number of poles 3P ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
4P ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
AC220/230/240V 18 36 50 75 18 36 50 75 40 50 50 75 40 50 50 75
Rated ultimate short circuit
AC380/400/415V 15 25 36 50 15 25 36 50 20 36 36 50 20 36 36 50
breaking capacity Icu (kA)
AC500V - - 15 25 - - - - - - - - - - - -

AC220/230/240V 18 18 50 50 18 18 50 50 30 30 50 50 30 30 50 50
Rated service short circuit
AC380/400/415V 15 15 36 36 15 15 36 36 20 20 36 36 20 20 36 36
breaking capacity Ics (kA)
AC500V - - 15 25 - - - - - - - - - - - -
In conformity with standards IEC/EN 60947-2
Utilization category A A A A

Isolation function
▪ ▪ ▪ ▪
Ambient temperature -35℃~70℃
Arcing distance ≤50 ≤50 ≤50 ≤50
Without maintenance 20000 20000 20000 20000
Mechanical life (times)
With maintenance 40000 40000 40000 40000
Electricallife (times) AC415V, In 10000 10000 10000 10000

Magnetic Distribution protection ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

Release type and
release Motor protection ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
protection type
Thermal magnetic Distribution protection ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
release Motor protection ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Auxiliary contact ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Alarm contact ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Auxiliary contact, alarm contact ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Shunt release ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Under voltage release ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Accessories Manual operational mechanism ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Motor-driven mechanism ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Rear connection ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Plug-in type ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Extending terminal bonding bar ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
Derivative product
For special use of prepaid ammeter ▪ - ▪ - ▪ - ▪ -
Overload alarm non-trip - - - - ▪ ▪ ▪ ▪
Width (2P/3P/4P) 56/78/103 56/78/103 63/90/120 78/105/140
Dimension and size(mm)
Height 130 130 155 165
Width (w) X height (H)X depth(D)
Depth (E/S/F/H type) 70.5/70.5/80.5/80.5 70.5/70.5/80.5/80.5 75/75/90.5/90.5 76.5/76.5/101.5/101.5
 Functions and features Moulded Case Circuit Breakers P-028

400 630 800 1000 1250 1600

M
250,280,300,315,320,350,400 400,450,500,600,630 630, 700, 800 800,900,1000 1000, 1250 1000, 1250,1600

1000 1000 1000 1000 1000 1000

12 12 12 12 12 12
220/230/240, 380/400/415 220/230/240, 380/400/415 220/230/240, 380/400/415 220/230/240, 380/400/415 220/230/240, 380/400/415 220/230/240, 380/400/415

E S F H E S F H S F H S H S H S H
- - - - - - - - - - - - - - - - -

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
50 75 75 100 50 75 75 100 75 75 100 75 100 75 100 75 100
36 50 50 70 36 50 50 70 50 50 70 50 70 50 70 50 70
- - - - - - - - - - - - - - - - -

50 50 75 75 50 50 75 75 50 75 75 50 75 50 75 50 75
36 36 50 50 36 36 50 50 36 50 50 36 50 36 50 36 50
- - - - - - - - - - - - - - - - -

A A A A A A

▪ ▪ ▪ ▪ ▪ ▪
≤100 ≤100 ≤100 ≤100 ≤100 ≤100

10000 10000 8000 5000 5000 5000

20000 20000 10000 10000 10000 10000
8000 8000 5000 2500 2500 2500

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ - - - -

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ - - - -

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪
▪ - - - - - - - - - - -

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ - - - -
140/185 140/185 182/240 210/280 210/280 210/280
257 257 270 280 370 370
107.5/107.5/107.5/107.5 107.5/107.5/107.5/107.5 113/113/113 116/116 152/152 1600A:157;<1600A:152
Modular DIN Rail Products
RCCB
Tripping sensitivity
10mA - precision instrument leakage protection and bathroom use
30mA - additional protection against direct contact.
100mA - co-ordinated with the earth system according to the
formula IΔn <50/R, to provide protection against indirect
contacts;
300mA - protection against indirect contacts, as well as fire
hazard.
Tripping time
Instantaneous
It ensures instantaneous tripping (without time-delay).
Short time delay
It ensures any tripping at least 10ms.
Selective
It ensures total discrimination with a nonselective RCD placed
downstream.

1.3 Approvals and certificates

Detailed information, please refer to Certificates Table
on the last page.

NL1 Residual Current

Operated Circuit Breaker Main distribution board Sub- distribution board

without over-current RCCB

protection (Magnetic) RCCB RCCB

1. General
RCCB
1.1 Function
Selective Instantaneous, short time delay
Control electric circuits.
Protect people against indirect contacts and additional
protection against direct contacts.
Protect installations against fire hazard due to insulation faults.
Residual current circuit breakers are used in housing, tertiary
sector and industry.

1.2 Selection
Detectable wave form
AC class
Tripping is ensured for slowly increasing sinusoidal AC
residual currents.
A class
Tripping is ensured for sinusoidal AC residual currents and
for pulsed DC residual currents, whether applied suddenly
or increasing slowly.
A-SI class
Tripping is ensured not only for sinusoidal AC residual currents
but also for pulsed DC residual currents whether applied suddenly
or increasing slowly.A type with filters against spurious tripping
caused by harmonics and transient surges.
With the impact of 8/20us surge 3000A, this high immunity RCCB
will still be in stable status.

014

Empower the World >> 26

 Modular DIN Rail Products
RCCB
2. Technical data

Standard IEC/EN 61008-1

Type (wave form of the earth leakage sensed) AC, A, AC-G, A-G, AC-S, A-S, A-SI
Rated current In A 25, 40, 63, 80, 100
Poles 2P, 4P
Rated voltage Ue V 230/400~240/415
Rated sensitivity I△n A 0.01 for 25A, 0.03, 0.1, 0.3

Insulation voltage Ui V 500

Rated residual making and 500 (In=25A/40A), 1000(In=80A/100A)

Electrical A
breaking capacity I△m 630 (In=63A)
features
Short-circuit current Inc=I△c A 6000/10000

SCPD fuse A 10000

break time under I△n S ≤0.1(Normal type), 10ms~300ms(G type). 150ms~500ms(S type)
Rated frequency Hz 50/60

Rated impulse withstand voltage(1.2/50) Uimp V 6000

Dielectric test voltage at ind. Freq. for 1 min kV 2.5
Pollution degree 2
Electrical life 2, 000
Mechanical life 2, 000
Fault current indicator Yes
Mechanical
Protection degree IP20
features
Ambient temperature (with
℃ -5...+40
daily average≤35℃)
Storage temperation ℃ -25...+70
Terminal connection type Cable/U-type busbar/Pin-type busbar

mm2 25/35
Terminal size top/bottom for cable
AWG 18-3/18-2

mm2 10/16
Terminal size top/bottom for busbar
Installation AWG 18-8/18-5

N·m 2.5
Tightening torque
In-Ibs. 22
Mounting On DIN rail EN 60715 (35mm) by means of fast clip device
Connection From top and bottom

3. Overall and mounting dimensions (mm)

0
79 -1.2
5.5
34.5±0.5

45±0.31
86 -1.4
0

0
0
36 -0.62 72 -1.2 49.5±0.31
3.6

27 >> Empower the World

DUVAL® AC Surge Protection Device (ACSPD)

L.V.CONTROL SDN BHD. (191275-T)

No.3 Twin Park, Jalan Subang 7/1, Taman Perindustrian Subang USJ 1, 47600, Subang Jaya, Selangor, Malaysia
Phone: +603-8011 2999 Fax: +603-8081 7425, +603-8081 7426
Email: info@lvcontrol.com.my Website: www.lvcontrol.com.my

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)
The effect of direct and indirect lightning strikes to buildings
and structures causes power surges that are induced through
the power cables on to the mains electrical distribution system
which can be disastrous and the effect could result to all forms
of electrical and electronic equipment premature ageing,
malfunction or damaged.
ALL MODE or 7 MODE MOV Technology Because of its robust design, the DUVAL® AC Surge
Protection Devices (ACSPD) is capable of diverting high surge
energy from both direct (10/350µs) and indirect (8/20µs)
lightning current and over voltages to ground and limit a low let
through voltage across its terminals.
DUVAL® AC Surge Protection Devices (ACSPD) is
manufactured according to IEC 61643-11 and is based on the
MOV+Gas Discharge Tube Technology latest state of art technology to cater for different requirement.
(3+1 Technology) Its configuration comes in 2 designs, based on:

Common and differential mode

· 3+1 Technology
· MOV and Spark-gap/ Gas Discharge Tube Technology
· Modular & Pluggable type

Grey=Active Red=End of Surge Full mode

Arrester life · All Mode or 7 Mode Technology
· All MOV Technology
· Modular & Pluggable type

Both configurations use only the highest quality material of

Metal Oxide Varistor (MOV) combining with strong Spark-gap
or Gas Discharge Tube Technology to cater for very high surge
ALL MODE or 7 MODE MOV Technology energy.
All DUVAL® AC Surge Protection Devices (ACSPD) with MOVs
in the plug-in modules are completely embedded with epoxy
resin to prevent fire hazard and flash over between MOV’s.

For model D80B, D40C, D25D, all phases and neutral

protection modes are with status indicators and Local Remote
Indication to provide faster respond to rectify the system in
MOV+Gas Discharge Tube Technology
case of surge and therefore to avoid loss in equipment life.
(3+1 Technology)
All pluggable modules are of Fool-Proof Plug-In Technology,
with clear design to differentiate phase cartridge from neutral
cartridge hence preventing any wrong insertion of cartridge.
DUVAL® AC Surge Protection Devices (ACSPD) design are
user-friendly, it clearly indicate the status of the surge arrester.
GREY/GREEN indicates the surge arrester is in active mode
and RED indicates the end of surge arrester life.

Green=Active Red=End of Surge L1

life Substation
Arrester life L2
Transformer
TT-Network Earthing System
For TT-Network used in Malaysia, the neutral point of power L3
substation transformer supply is connected to Earth, and N
conductive part of the equipment at the end users side are
PE
connected to earth as shown in the wiring diagram. Equipment
End User

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)
Surge Protection Device (SPD) Waveforms
DUVAL® AC Surge Protection Devices (ACSPD) is manufactured according to IEC 61643-11 Standard. The following
waveform are applied in the manufacturing of DUVAL ® AC Surge Protection Devices (ACSPD). All tests are also carried
out based on these respective waveform according to IEC 61643-11.

Class 1 waveform: 10/350µs (Iimp)

 Use to measure capability of Class 1 Surge Protection Device.
 Result recorded in Iimps at x kA of 10/350µs waveform.
 Eg: DUVAL® D150B Class 1 Surge Protection Device is based on 7 mode
ALL MOV Technologies with tested Iimp of 15kA with 10/350µs
waveform.

Class 2 waveform: 8/20µs (Imax)

 Use to measure capability of Class 2 Surge Protection Device.
 Result recorded in Imax at x kA of 8/20µs waveform.
 Eg: DUVAL® D100B Class 2 Surge Protection Device is based on 7 mode
ALL MOV Technologies with tested Imax of 100kA, 65kA and 40kA
available with 8/20µs waveform.

DUVAL® D80B and D40C Class 2 Surge Protection Device also

available with 3+1 mode Technologies with tested Imax of 100kA,
65kA and 40kA with 8/20µs waveform respectively.

Class 3 Combination waveform test base on

 Open Circuit Voltage Uoc = 1.2/50µs (20 kV/10 kV/6kV).
 Short Circuit Current Isc = 8/20µs (10kA/5kA/3kA).
 Eg: DUVAL® D25D Class 3 Surge Protection Device is based on 7 mode
ALL MOV Technologies with a tested Uoc/Isc of 6kV/3kA test result.

Protection Mode for TT Network

DUVAL® AC Surge Protection Devices (ACSPD) have 2 specific design to provide protection in common mode and
differential mode, as well as in ALL mode protection configurations.

For ALL mode (7 mode) protection, DUVAL® Technology is based on Metal Oxide Varistor (MOV) Technology only,
providing a COMPLETE PROTECTION with lower let through voltage for the system.

For common and differential mode (3+1) mode, DUVAL® Technology is based on Metal Oxide Varistor (MOV) for its phase
protection and Gas Discharge Tube (GDT) or Spark-gap (SG) technology for its neutral protection.

L L1
L2
L3

N N

PE PE

Single-Phase 3-Phase
(1+1 Technology) (3+1 Technology)

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)

L1
L L2
L3

N N

PE PE

Single-Phase 3-Phase
(1+1 Technology) (3+1 Technology)
3-Phase

Class 1 & 2

Model 1 Phase ● D150B-385/1T+NPE

3 Phase ● D150B-385/3T+NPE

Manufactured acc. to IEC 61643-1 & 61643-11

Tested to MS IEC 61643-1 & 61643-11
Compliance to IEEE C62.41 Cat C,B,A
Network TT Network
Protection mode Common & Differential
MOV and
SPD Compliance and Technology
Gas Discharge Tube
3 phase: 415V
Configuration
1 phase: 230V
3 phase: 4pole
No. of poles
1 phase: 2pole
Structure Type Modular
Protection Mode configuration tested to ● 3 + 1 Mode
Class 1, 2, and 3 L-N, N-PE ● 1 + 1 Mode
Impulse current (10/350µs) L-N/N-PE (Class1 / Type1) Iimp 15kA / 50kA
Maximum Discharge Current (8/20µs) L-N (Class2 / Type2) Imax 150kA / 150kA
Open Circuit Voltage / Short Circuit Current (Class3 / Type3) Uoc -
L - N = 1.3kV / 1.8kV
Voltage Protection Level Up at In
N - PE = 1.7kV
L - N = ≤0.85kV
Let through Voltage (6kV/3kA) Ures
N - PE = ≤0.9kV
Nominal Discharge Current (8/20µs) In 20kA / 40kA
Nominal Voltage L-N, N-PE Un 320V / 230V
Max. Continuous Operating Voltage L-N, N-PE Uc 385V / 255V
Built-in integrated thermal disconnector Yes
Operative / fault indicator Grey = Operative
- mechanical flag type RED = Faulty
1 Phase 550gm / 72 x 90 x 66mm²
Weight / Dimension : L x H x D (mm²) or
Note: Model with suffix “T” is with telesignal contacts 3 Phase 1100gm / 144 x 90 x 66mm²

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)

1-Phase 3-Phase 1-Phase

Class 2 Class 3

● D100B-385/1T+NPE ● D80B-275/1+NPE ● D40C-275/1+NPE ● D25D-275/1+NPE

● D80B-275/1T+NPE ● D40C-275/1T+NPE ● D25D-275/1T+NPE
● D100B-385/3T+NPE ● D80B-275/3+NPE ● D40C-275/3+NPE ● D25D-275/3+NPE
● D80B-275/3T+NPE ● D40C-275/3T+NPE ● D25D-275/3T+NPE
IEC 61643-1 & 61643-11
MS IEC 61643-1 & 61643-11
IEEE C62.41 Cat C,B,A
TT Network
Common & Differential Common & Differential Common & Differential Common & Differential
MOV and MOV and MOV and MOV and
Gas Discharge Tube Gas Discharge Tube Gas Discharge Tube Gas Discharge Tube
3 phase: 415V 3 phase: 415V 3 phase: 415V 3 phase: 415V
1 phase: 230V 1 phase: 230V 1 phase: 230V 1 phase: 230V
3 phase: 4pole 3 phase: 4pole 3 phase: 4pole 3 phase: 4pole
1 phase: 2pole 1 phase: 2pole 1 phase: 2pole 1 phase: 2pole
Modular Pluggable Pluggable Pluggable
● 3 + 1 Mode ● 3 + 1 Mode ● 3 + 1 Mode ● 3 + 1 Mode
● 1 + 1 Mode ● 1 + 1 Mode ● 1 + 1 Mode ● 1 + 1 Mode
10kA / 50kA 8kA / 12.5kA 4kA / 12.5kA -
100kA / 150kA 65kA / 70kA 40kA / 70kA 25kA / 70kA
- 20kV / 10kA 10kV/5kA 6kV / 3kA
L - N = 1.4kV L - N = 1.4kV L - N = 1.3kV L - N = 1.2kV
N - PE = 1.7kV N - PE = 1.5kV N - PE = 1.5kV N - PE = 1.5kV
L - N = ≤0.85kV L - N = ≤0.8kV L - N = ≤0.8kV L - N = ≤0.8kV
N - PE = ≤0.9kV N - PE = ≤1.0kV N - PE = ≤1.0kV N - PE = ≤1.0kV
25kA 20kA 20kA 10kA
320V / 230V 230V / 230V 230V / 230V 230V / 230V
385V / 255V 275V / 255V 275V / 255V 275V / 255V
Yes Yes Yes Yes
Grey = Operative Green = Operative Green = Operative Green = Operative
RED = Faulty RED = Faulty RED = Faulty RED = Faulty
500gm /72 x 90 x 66mm² 370gm /36 x 90 x 66mm² 275gm/36 x 90 x 66mm² 275gm/36 x 90 x 66mm²
or or or or
1000gm /144 x 90 x66mm² 650gm /72 x 90 x 66mm² 550gm/72 x 90 x 66mm² 550gm/72 x 90 x 66mm²
Note: Uc = 275V and 385V both are available.

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)

3-Phase 3-Phase 1-Phase

Class 1 & 2 Class 2 Class 3

Model 3 Phase: 3 Phase: 3 Phase: 3 Phase: 3 Phase:

(Emal List
D150B- 385/7T D100B-385/7T D80B- 385/7T D40C-385/7T D25D-385/7T
Reference)
(7 nos.D150B- (7 nos.D100B- (7 nos. D80B-385 (7 nos. D40C-385 (7 nos. D25D-385
385 + 1no.DNL) 385 + 1no.DNL) + 1no.DNL) + 1no.DNL) + 1no.DNL)

1 phase: 1 Phase: 1 Phase:

D80B-385/3T D40C-385/3T D25D-385/3T
(3nos. D80B-385 (3 nos. D40C-385 (3 nos. D25D-385
+ 1no DNL) + 1no.DNL) + 1no.DNL)
Manufactured acc to IEC 61643-11

Tested to MS IEC 61643-11

Compliance to IEEE C62.41 Cat C,B,A

Network TT Network

Protection mode Full Mode (Common & Differential)

SPD Compliance 3 Phase 7 MOV & 1 DNL 7 MOV & 1 DNL 7 MOV & 1 DNL 7 MOV & 1 DNL 7 MOV & 1 DNL
and Technology 1 Phase 3 MOV & 1 DNL 3 MOV & 1 DNL 3 MOV & 1 DNL

3 Phase 415V 3 Phase 415V 3 Phase 415V 3 Phase 415V 3 Phase 415V
Configuration
1 Phase 240V 1 Phase 240V 1 Phase 240V
Modular / Modular / Modular /
Structure Type Modular Modular
Pluggable Pluggable Pluggable
Protection Mode
7 Full Mode MOV 7 Full Mode MOV 7 Full Mode MOV 7 Full Mode MOV 7 Full Mode MOV
configuration tested to
Class 1, 2, and Class 3
L-N, L-E, N-E
3 Mode MOV 3 Mode MOV 3 Mode MOV
Impulse current
(10/350µs) per mode limp 15kA (30kA) - - - -
(per phase)
Maximum Discharge
Current at (8/20µs) per Imax 150kA (300kA) 100kA (200kA) 70kA (140kA) 40kA (80kA) 25kA (50kA)
mode (per phase)
Open Circuit Voltage /
Short Circuit Current
Uoc - - - - 6kV/3kA
Nominal Discharge
Current (8/20µs)
In 20kA / 40kA 25kA / 40kA 20kA 15kA -
Voltage Protection Up at
≤ 1.3kV / ≤ 1.8kV ≤ 1.4kV / ≤ 1.8kV ≤ 1.65kV ≤ 1.5kV ≤ 1.1kV
Level In
Nominal Voltage Un 320V 320V 320V 320V 320V
Max. Continuous
Operating Voltage
Uc 385V 385V 385V 385V 385V
Built-in integrated
thermal disconnector Yes Yes Yes Yes Yes
& Telesignal contact
Operative / fault GREY = GREY = Green = Green = Green =
indicator Operative Operative Operative Operative Operative
- mechanical flag type RED = Faulty RED = Faulty RED = Faulty RED = Faulty RED = Faulty
1100gm /144 x 90 1100gm /144 x 90 1100gm/144 x 90
Weight / Dimension 2200gm 2100gm
x 66 mm² / x 66 mm² / x 66 mm² /
550gm/72 x 90 x 550gm/72 x 90 x 550gm/72 x 90 x
: L x H x D (mm²) 288 x 90 x 66mm² 288 x 90 x 66mm²
66 mm² 66 mm² 66 mm²

Copyright of L. V. Control Sdn. Bhd.

DUVAL® AC Surge Protection Device (ACSPD)

INPUT Technical Specification:

POWER
Model DSF24-10SL-240V DSF10RI-24-240
Tele signal Contact NO YES
LED
Indicator Nominal Voltage 240V rms
Light
Max. Working Volts 275V rms
Working Frequency 40 - 60 Hz
Peak Let Through Volts. +/- 800V
Protection Modes L-N, L-E, N-E
OUT POWER Surge Rating All mode, 24kA, 8/20µS
CLEAN
Surge Rating according to IEC 61643-1
DSF24-10SL-240V
IEEE C62.41
INPUT
POWER
AS/NZS 1768:2003
Filter
Inductor Type Common Mode 10A choke
Capacitors X and Y
LED
Indicator Attenuation (60dB) 5MHz
Light
Earth Leakage Approx X 500µa
Operating Current 3m A norminal

OUT POWER
Continuous Current *10A
CLEAN
Maximum Current 20A
DSF10RI-24-240
General Specification
DUVAL® Series Surge Filters (DSF) offers a
Operating Temperature -40 to 70 °C
better alternative solution to Type 3 SPDs.
Storage Temperature -55 to 90 °C
The DSF24 series surge arrester is a series of
Humidity 0 - 90% RH
lightning and power transient arrestors with
filtering capability. These allow voltage surge Terminals Self opening 0.5 - 4 sg mm
limitation and filtering for sensitive electronic LED Indication One LED Two LED
devices connected to the main power supply.
Housing Material MS Casing ABS Base
The DSF24 provides effective protection via a Mounting Style DIN or G rail
three stage filter circuit. The input stage limits
Dimension (H x W x D) (mm) 114 X 22 X 83 120 X 52 X 80
the over-voltage excursion, the second stage
series filter restricts both the harmonic content Weight
DUVAL® Series Surge Filter
175gm 350gm
and the rate of rise of voltage (dv/dt) of any DUVAL® Technology:
DUVAL® Technology
transient over-voltage to a safe level. STAGE 1 STAGE 2 STAGE 3
COIL + CAPACITANCE = FILTER
20A
It consist of varistors at the input and output L Ø
circuit and a filter circuit in between to filter the MOV 1 MOV 4

power supply from UNCLEAN to CLEAN power MOV 3

to the equipment, such as rectifiers, expensive N Ø

MOV 5
Wifi system, routers & computers network etc. MOV 6
MOV2

E Ø
The series filter is also able to reduce line noise
at all times. MOV in Parrallel Connection Filter in Series Connection MOV in Parrallel Connection
L-N x 1 MOV L-N x 1 MOV
Parrallel
L-E x 1 MOV - - L-E x-1 MOV
The DSF24 must always be installed on the N-E = 1 MOV N-E = 1 MOV
It divert surge lightning and To reduce hi frequency, noise, Further reduce over voltage /
load side of a fuse rated 10amps or 20amps pass it to ground harmonics and so reduces reduce let thru voltage
disturbances in current flow
depending on the selected model.
Copyright of L. V. Control Sdn. Bhd.
DUVAL® AC Surge Protection Device (ACSPD)
Model Selection and Installation Criteria
DUVAL® AC Surge Protection Devices (ACSPD) should be fitted immediately below the installation main isolating device.
The selected surge arrester must be of the correct protection voltage, install as close as possible to the equipment to be
protected and be well co-ordinated with other surge protective devices in the system.

Equipment Tolerance Levels for Impulse withstand Voltage according to IEC 60364-4-44,
IEC 60664-1 and IEC 60730-1
Tolerance Level of DUVAL® AC Surge
equipment Protection Devices
Type of Equipment Categories
Surge Rating
230/400V Model
Iimp Imax
Communication Equipment, Rectifiers, computer network, computers,
Home automation, Security Systems, HiFi, TV, Video, Alarm & other 1 1500V D25D - 25kA
electronic base equipment. D40C - 40kA
D80B - 65kA
Home electrical appliances and mechanical equipments. 2 2500V

Electrical Switchgears (MCCB/MCB/Contactors etc.) installed in

3 4000V
Distribution Switch Board. D80B - 65kA
D100B 10kA 100kA
Industrial Motors, electrical measuring meters, 4 6000V D150B 12.5kA 150kA
Over current protection equipment etc.

SPD Co-ordination with other disconnector components

Switch MCB
Class Model Fuse (Type) MCCB Cable Size
Board (C curve)

Phase Neutral Earth

a) D150B-385/3T+NPE 50B
MSB 1 b) D150B-385/1T+NPE 50B Ir: 63
c) D150B-385/7T Icu: ≥10kA

a) D100B-385/3T+NPE 50B *Note 1: Depends Ir: 63A – 100A

MSB 2 b) D100B-385/1T+NPE 50B on prospective Icu: ≥25kA 16mm2
c) D100B-385/7T short circuit 16mm2 16mm2 25mm2
NH Fuse:
current 25mm2 25mm2 35mm2
125A – 316A
a) D80B-275/3+NPE Via Green Earth
SSB 2 b) D80B-275/1+NPE *Note 2: For Terminal Block
c) D80B-385/7T model D150B &
D100B, preferable
a) D40C-275/3+NPE to use Fuse / Ir: 32A – 63A
SSB 2 b) D40C-275/1+NPE MCCB Icu: ≥25kA
c) D40C-385/7T
a) D25D-275/3+NPE
Ir: 32A – 63A Ir: 32A Not Min: 10mm2 Min: 10mm2 Min: 10mm2
DB 3 b) D25D-275/1+NPE
Icu: 6kA or 10kA Icu: ≥50kA recommended Max: 25mm2 Max: 25mm2 Max: 25mm2
c) D25D-385/7T

Installation Rules
50cm rule
For safety and effectiveness, it is important to keep the cable to a maximum 50cm length bundle together in the shape of
T-wiring (parallel to load) or a V-wiring connection (series to load) or it is to be as short as possible. The main reason is that
when a 10kA lightning current is travelling along a 1 meter cable, the voltage across it is 1200Volts for I: 10kA wave 8/20,
U: 1200V (1m:1µH:1200V).

Equal Potential
All Surge Protection Devices (SPD) that are earthed in the same circuit must be equally connected or bonded to the main
earth to achieve equipotentiality. The earth resistance must be in between 5 to 10 ohm or lower.

Copyright of L. V. Control Sdn. Bhd.

 PANEL METER
CURRENT TRANSFORMER
Industrial Automation (M) Sdn. Bhd.(29039-D) CATALOGUE INDUSTRIAL
AUTOMATION
Web: www.iasb.com.my Email: inquiry@iasb.com.my

KUALA LUMPUR KLANG-Wisma VITAR

No. 158, Jalan Loke Yew, Lot 590, Jalan Batu Tiga Lama,
55200 Kuala Lumpur, Malaysia. Kawasan Perindustrian Sungai Rasa,
Tel: +603-9221 0511 41300 Klang, Selangor Darul Ehsan.
Fax: +603-9222 2299, +603-9221 2330 Tel: +603-3342 2022
Email: sales.kl@iasb.com.my Fax: +603-3341 6267
Email: sales.klg@iasb.com.my

BUTTERWORTH PENANG
No. 108, Jalan Raja Uda, 63, 1st Floor, Persiaran Mahsuri 1/3,
Pusat Perniagaan Raja Uda, Sunway Tunas, 11900 Bayan Baru, Penang.
12300 Butterworth, Penang. Tel: +604-6371 381
Tel: +604-3319 901/2/3 Fax: +604-6371 378
Fax: +604-3310 443, +604-3333 442 Email: sales.pg@iasb.com.my
Email: sales.bw@iasb.com.my

JOHOR BAHRU BATU PAHAT

No. 6, Jalan Bukit 8, Bandar Seri Alam, 5A, 1st Floor, Jalan Timah Hitam,
81750 Masai, Johor. Kg. Kenangan Dato Onn, 83000 Batu Pahat, Johor.
Tel: +607-3866 514/23 Tel: +607-4431 688
Fax: +607-3864 152, +607-3865 062 Fax: +607-4348 188
Email: sales.jb@iasb.com.my Email: sales.bp@iasb.com.my

IPOH MELAKA
No. 143, Jalan Bendahara, No. 47 & 49, Jalan PM1,
31650 Ipoh, Perak Darul Ridzuan. Taman Perindustrian Merdeka,
Tel: +605-253 4052/3/5458 75350 Batu Berendam, Melaka.
Fax: +605-2534 243 Tel: +606-3178 371/72
Email: sales.ip@iasb.com.my Fax: +606-3178 370
Email: sales.mc@iasb.com.my

SUNGAI PETANI PUCHONG

No. 43, Jalan Tuanku Haminah 1, 21 Jalan Rajawali 2,
Taman Tuanku Haminah, Taman Perindustrian Puchong Jaya,
08000 Sungai Petani, Kedah. 47000 Puchong.
Tel: +604-4480 222/322 Tel: +603-8070 0183
Fax: +604-4480 777 Fax: +603-8062 9970
Email: sales.sp@iasb.com.my Email: sales.pch@iasb.com.my

KUANTAN KUCHING
No. A-317, Ground Floor, Jalan Air Putih, B424-B432, Level 4, Tower B2, ICOM Square,
Taman Seri Setali Intan, Jalan Pending, 93450 Kuching, Sarawak.
25350 Kuantan, Pahang Darul Makmur. Tel: +6011-3325 597, +603-9235 2992
Tel: +609-5661 321/4331 Fax: +603-9235 2990
Fax: +609-5663 844 Email: sales.swk@iasb.com.my
Email: sales.ktn@iasb.com.my

The contents of this publication are the copyright of the publisher and may not be reproduced (even
extracts) unless prior written permission is granted. Every care has been taken to ensure the accuracy
of the information contained in this publication but no liability can be accepted for any loss or damage
whether direct, indirect or consequential arising out of the use of the information contained herein.
 Ammeter, scale 90 o Volmeter, scale 90 o

CLASS 1.5 CLASS 1.5

Moving Iron Instruments For Alternating Current (AC) Moving Iron Instruments For Alternating Current (AC)
Moving coil Instruments For Direct Current (DC) Moving coil Instruments For Direct Current (DC)
AC Amp - For more than 100A Connect to C.T./ 5A AC Volt - For more than 600V Connect to V.T./ 110V
(with interchangeable scales) (with interchangeable scales)
DC Amp - For more than 50A Connect to Shunt /
60mA (with interchangeable scales)

AC Direct
Measuring system DC Moving Coil
AC Direct AC .../5A Moving Iron
Measuring system
Moving Iron Moving Iron Scale plate example
Scale plate example

MMT9-VM-DC150V MMT9-VM-AC500V
MMT9-AM-AC20A MMT9-AM-250/5A
Type MMT7 MMT9 MMT7 MMT9
Type MMT7 MMT9 MMT7 MMT9 Bezel size (mm) 72x72 96 x 96 72 x 72 96 x 96
Bezel size (mm) 72 x 72 96 x 96 72 x 72 96 x 96 Panel cut-out (mm) 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91
Panel cut-out (mm) 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91 Depth behind panel (mm) 64 64 64 64
Depth behind panel (mm) 64 64 64 64
Terminal protection IP 00 IP 00 IP 00 IP 00
Terminal protection IP 00 IP 00 IP 00 IP 00
Casing protection IP 52 IP 52 IP 52 IP 52 Casing protection IP 52 IP 52 IP 52 IP 52

DC / AC direct, DC shunt operated

1A 1A 1A - - DIRECT VOLTAGE
5A 5A 5A - -
10A 10A 10A - - 15V - DC15V - AC15V
15A 15A 15A - - 30V - DC30V - AC30V
20A 20A 20A - - 50V - DC50V - AC50V
25A - - - -
150V - DC150V - AC150V
30A 30A 30A - -
40A 40A 40A - - 200V - DC200V - AC200V
60A 60A 60A - - 300V - DC300V - AC300V
Rating -.../5A C.T. Operated 500V - - - AC500V
15A, 20A, 25A, 30A, 40A - - .../5A .../5A
60A, 100A, 150A, 200A, - - .../5A .../5A
250A, 300A, 400A, 500A - - .../5A .../5A
600A, 800A, 1000A, - - .../5A .../5A
1200A, 1500A, 1600A, - - .../5A .../5A
2000A, 2500A, 3000A, - - .../5A .../5A
3200A, 4000A, 5000A, - - .../5A .../5A
6000A - - .../5A .../5A

*Wiring diagram refer page 9 *Wiring diagram refer page 9

1 2
 Power Demand Meters, scale 90 o Frequency & Power Factor Meter

CLASS 3 CLASS 1.5

Bimetal - 20% Overscale, Respone Time - 15 min

Frequency Meter
Moving Iron - 100% Overscales
- Pointer type, use an integral electronic converter
Measuring range : 5A
and moving coil indicator, easy to read.
Maximum demand indicators.
- Reed type, accurate measuring with any type of
The thermal-time characteristic.
waveform.

CLASS 2.5
MMT9-MCM-100/5A

Power Factor Meter MMT9-FPM-4565

MMT9-PFM-3-4
415V
- Single phase or three phase

Meter Maximum Demand Maximum Demand Combine Maximum Demand

Bimetal Respone Bimetal Respone Bimetal + Moving

Measuring system
time 15min time 30min Response time 15min

Scale plate example

MMT9-FRM

MMT9-MDM-200/5A 15min
MMT9-MDM-3000/5AS 30min MMT9-MCM-300/5A

Type MMT7 MMT9 MMT7 MMT9 MMT7 MMT9

Bezel size (mm) 72x72 96 x 96 72 x 72 96 x 96 72 x 72 96 x 96
Meter Frequency meter Frequency meter Power Factor meter
Panel cut-out (mm) 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91
Depth behind panel (mm) 64 64 64 64 64 64 Pointer type
Measuring system CAP 0.5-1-0.5 IND built
built in electronic Reed type
Terminal protection IP 00 IP 00 IP 00 IP 00 IP 00 IP 00 in electronic converter
converter
Casing protection IP 52 IP 52 IP 52 IP 52 IP 52 IP 52
Scale plate example

.../ 5A
30A MDM-30/5A MDM-30/5A MDM-30/5AS MDM-30/5AS MCM-30/5A MCM-30/5A
60A MDM-60/5A MDM-60/5A MDM-60/5AS MDM-60/5AS MCM-60/5A MCM-60/5A
100A MDM-100/5A MDM-100/5A MDM-100/5AS MDM-100/5AS MCM-100/5A MCM-100/5A
150A MDM-150/5A MDM-150/5A MDM-150/5AS MDM-150/5AS MCM-150/5A MCM-150/5A
MMT9-FPM-4565-4 230V MMT9-PFM-3-4 415V 5A
200A MDM-200/5A MDM-200/5A MDM-200/5AS MDM-200/5AS MCM-200/5A MCM-200/5A MMT9-FRM-4565-4

250A MDM-250/5A MDM-250/5A MDM-250/5AS MDM-250/5AS MCM-250/5A MCM-250/5A

Type MMT7 MMT9 MMT7 MMT9 MMT7 MMT9
300A MDM-300/5A MDM-300/5A MDM-300/5AS MDM-300/5AS MCM-300/5A MCM-300/5A Bezel size (mm) 72x72 96 x 96 72 x 72 96 x 96 72 x 72 96 x 96
400A MDM-400/5A MDM-400/5A MDM-400/5AS MDM-400/5AS MCM-400/5A MCM-400/5A Panel cut-out (mm) 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91
500A MDM-500/5A MDM-500/5A MDM-500/5AS MDM-500/5AS MCM-500/5A MCM-500/5A Depth behind panel (mm) 64 64 64 64 64 64
600A MDM-600/5A MDM-600/5A MDM-600/5AS MDM-600/5AS MCM-600/5A MCM-600/5A Terminal protection IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
800A MDM-800/5A MDM-800/5A MDM-800/5AS MDM-800/5AS MCM-800/5A MCM-800/5A Casing protection IP 52 IP 52 IP 52 IP 52 IP 52 IP 52
1000A MDM-1000/5A MDM-1000/5A MDM-1000/5AS MDM-1000/5AS MCM-1000/5A MCM-1000/5A
1200A MDM-1200/5A MDM-1200/5A MDM-1200/5AS MDM-1200/5AS MCM-1200/5A MCM-1200/5A
1600A MDM-1600/5A MDM-1600/5A MDM-1600/5AS MDM-1600/5AS MCM-1600/5A MCM-1600/5A
Frequency meter
2000A MDM-2000/5A MDM-2000/5A MDM-2000/5AS MDM-2000/5AS MCM-2000/5A MCM-2000/5A
45-65Hz, 240V FPM-4565-2 FPM-4565-2 FRM-4565-2 FRM-4565-2 - -
2500A MDM-2500/5A MDM-2500/5A MDM-2500/5AS MDM-2500/5AS MCM-2500/5A MCM-2500/5A
45-65Hz, 415V FPM-4565-4 FPM-4565-4 FRM-4565-2 FRM-4565-2 - -
3000A MDM-3000/5A MDM-3000/5A MDM-3000/5AS MDM-3000/5AS MCM-3000/5A MCM-3000/5A
Power Factor meter
3200A MDM-3200/5A MDM-3200/5A MDM-3200/5AS MDM-3200/5AS MCM-3200/5A MCM-3200/5A
Single phase 240V - - - - PFM-1-2 PFM-1-2
4200A MDM-4000/5A MDM-4000/5A MDM-4000/5AS MDM-4000/5AS MCM-4000/5A MCM-4000/5A
Three phase 415V - - - - PFM-3-4 PFM-3-4
5000A MDM-5000/5A MDM-5000/5A MDM-5000/5AS MDM-5000/5AS MCM-5000/5A MCM-5000/5A

*Wiring diagram refer page 9 *Wiring diagram refer page 9

* Panel cut-out refer page 10

3 4
 Wattmeter, Scale 90 o Measurement Current Transformer

MPEX Current Transformer 15VA Class 1

CLASS 1.5 TECHNICAL SPECIFICATIONS
Ratio Dimension
Stock No. ID (mm) H(mm)
Single phase and three phase balanced and Amp Od (mm)
Overloads : as BS 7626/93 and IEC 185/87 (mod.)
unbalanced circuits. Secondary current : standard 5 Amps MCX1 - 60/5A 60/5 31 77 80
MCX1 - 100/5A 100/5 31 77 80
Dielectric range : 2,500 Vr.ms. for 1 minute
If the current is over 10A, the current circuits have to MCX1 - 150/5A 150/5 31 77 80
Voltage : Primary rated 660V AC MCX1 - 200/5A 200/5 42 77 60
be connected current transformer, which secondry
Rated short-time current : 20,000 Amp for 1second MCX1- 250/5A 250/5 42 77 60
current is 5A, if the current is not over 10A, it can be
Rated thermal current as % of primary : 120% MCX1 - 300/5A 300/5 42 75 40
connected directly according to actual current. MCX1 - 400/5A 42 75 40
Frequency : 50/60Hz 400/5
Temperature : -20 C to 70 C MCX1 - 500/5A 500/5 60 86 30
MCX1 - 600/5A 600/5 60 96 30
Insulation : Class B
MCX1 - 800/5A 800/5 90 130 30
MMT9-KWM Safety factor : <5 MCX1 - 1000/5A 1000/5 87 130 30
MCX1 - 1200/5A 1200/5 85 130 30
MCX1 - 1500/5A 1500/5 83 130 30
MCX1 - 1600/5A 1600/5 83 130 30
MCX1 - 2000/5A 2000/5 122 167 30
Measuring system Single phase Balanced Unbalanced MCX1 - 2500/5A 2500/5 120 167 30
Wattmeter Wattmeter Wattmeter MCX1 - 3000/5A 3000/5 115 167 35
Scale plate example MCX1 - 3200/5A 3200/5 115 167 35
MCX1 - 3500/5A 3500/5 130 180 35
MCX1 - 4000/5A 4000/5 125 165 20

MPEX Current Transformer 5VA Class 3

MMT9-KWM MMT9-KWM MMT-KWM
Ratio Dimension
Stock No. ID (Mm) H(mm)
Type MMT7 MMT9 MMT7 MMT9 MMT7 MMT9 Amp Od (mm)
Bezel size (mm) 72x72 96 x 96 72 x 72 96 x 96 72 x 72 96 x 96 MCX3 - 10/5A 10/5 33 70 22
Panel cut-out (mm) 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91 67.5 x 67.5 91 x 91 MCX3 - 20/5A 20/5 33 70 22
MCX3 - 30/5A 30/5 33 70 22
Depth behind panel (mm) 64 64 64 64 64 64
MCX3 - 40/5A 40/5 33 70 22
Terminal protection IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
MCX3 - 60/5A 60/5 33 70 22
Casing protection IP 52 IP 52 IP 52 IP 52 IP 52 IP 52 MCX3 - 100/5A 100/5 33 70 22
M6 SCREWS
MCX3 - 150/5A 150/5 33 70 22
MCX3 - 200/5A 200/5 42 77 22
MCX3 - 250/5A 250/5 42 77 22
C. T. Range
MCX3 - 300/5A 300/5 42 77 22
60/5A - - 40KW 40KW 40KW 40KW MCX3 - 400/5A 400/5 42 77 22
75/5A 30KW 30KW 50KW 50KW 50KW 50KW MCX3 - 500/5A 500/5 60 100 25
100/5A 40KW 40KW 60KW 60KW 60KW 60KW MCX3 - 600/5A 600/5 60 100 25
MCX3 - 800/5A 800/5 90 130 25
120/5A - - 80KW 80KW 80KW 80KW
MCX3 - 1000/5A 1000/5 87 130 25
150/5A 60KW 60KW 100KW 100KW 100KW 100KW 130 25
MCX3 - 1200/5A 1200/5 85
200/5A 80KW 80KW 120KW 120KW 120KW 120KW MCX3 - 1500/5A 1500/5 83 130 25
250/5A - - 150KW 150KW 150KW 150KW MCX3 - 1600/5A 1600/5 83 130 25
300/5A 120KW 120KW 200KW 200KW 200KW 200KW MCX3 - 2000/5A 2000/5 122 167 30
MCX3 - 2500/5A 2500/5 120 167 30
400/5A 150KW 150KW 250KW 250KW 250KW 250KW
MCX3 - 3000/5A 3000/5 115 167 30
500/5A 200KW 200KW 300KW 300KW 300KW 300KW MCX3 - 3200/5A 3200/5 115 167 30
600/5A 250KW 250KW 400KW 400KW 400KW 400KW MCX3 - 3500/5A 3500/5 130 167 30
750/5A 300KW 300KW 500KW 500KW 500KW 500KW MCX3 - 4400/5A 4000/5 130 180 30
800/5A MCX3 - 5000/5A 5000/5 125 185 30
- - 500KW 500KW 500KW 500KW ID in mm THICKNESS
in mm
1000/5A 400KW 400KW 600KW 600KW 600KW 600KW OD in mm
1200/5A - - 800KW 800KW 800KW 800KW Note: Add (B) to the Standard model for brackets.
1500/5A 600KW 600KW 1000KW 1000KW 1000KW 1000KW eg. MCX1-100/5A-B.
1600/5A - - 1000KW 1000KW 1000KW 1000KW Dimensions tolerance +- 3mm.
2000/5A 800KW 800KW 1200KW 1200KW 1200KW 1200KW Other ranges available upon request.
2500/5A - - 1500KW 1500KW 1500KW 1500KW The factory reserves the right to change
3000/5A 1200KW 1200KW 2000KW 2000KW 2000KW 2000KW specifications without prior notice.
3200/5A - - 2000KW 2000KW 2000KW 2000KW
4000/5A 1500KW 1500KW 2500KW 2500KW 2500KW 2500KW
5000/5A 2000KW 2000KW 3000KW 3000KW 3000KW 3000KW

* Wiring diagram refer page 9

* Panel cut-out refer page 10

5 6
 Protection Current Transformer Current Transformer Mounting Bracket

TECHNICAL SPECIFICATIONS MPEX Protection Current Trans. 15VA 10P5

DESIGN WITH MOUNTING BRACKET AT DIFFERENT MOUNTING ANGLE
Ratio Dimension
Stock No. Id (mm) H(mm) TYPE A (at angle 180 degree)
Overloads : as BS 7626/93 and IEC 185/87 (mod.) Amp Od (mm)
M6 SCREWS
Secondary current : standard 5 Amps MPX1 - 60/5A 60/5 38 105 100
Dielectric range : 2,500 Vr.ms. for 1 minute MPX1 - 100/5A 100/5 38 105 70
MPX1 - 150/5A 150/5 38 105 60 MPEX Current Transformer mounting bracket
Voltage : Primary rated 660V AC
MPX1 - 200/5A 200/5 42 105 50
Rated short-time current : 20,000 Amp for 1second MPX1 - 250/5A 250/5 42 105 40
Rated thermal current as % of primary : 120% MPX1 - 300/5A 300/5 50 100 50
Frequency : 50/60Hz MPX1 - 400/5A 400/5 50 100 45
Temperature : -20 C to 70 C MPX1 - 500/5A 500/5 62 113 35
Insulation : Class B MPX1 - 600/5A 600/5 62 113 35
MPX1 - 1000/5A 1000/5 62 113 40
Safety factor : <5
MPX1 - 1600/5A 1600/5 90 126 27

MPEX Protection Current Trans. 15VA 10P10

Ratio Dimension
Stock No. Id (mm) H(mm)
Amp Od (mm)
MPX2 - 100/5A 100/5 38 133 100 Mounting bracket
MPX2 - 150/5A 150/5 38 133 75
ID in mm THICKNESS
MPX2 - 200/5A 200/5 38 105 83 in mm
MPX2 - 250/5A 250/5 38 105 65 OD in mm
MPX2 - 300/5A 300/5 50 100 85
MPX2 - 400/5A 400/5 50 100 75
MPX2 - 500/5A 500/5 62 113 55
MPX2 - 600/5A 600/5 62 113 45 TYPE B (at angle 90 degree)
MPX2 - 800/5A 800/5 90 138 45
M6 SCREWS
MPX2 - 1000/5A 1000/5 87 138 40
MPX2 - 1200/5A 1200/5 85 138 40 Model : CT-BRACKET-21X100MM
MPX2 - 1500/5A 1500/5 83 138 40
MPX2 - 1600/5A 1600/5 83 138 40
Suitable to couple with the Current Transformer height
MPX2 - 2000/5A 2000/5 122 170 40 less than 30mm
MPX2 - 2500/5A 2500/5 120 170 35
MPX2 - 3000/5A 3000/5 115 170 35
MPX2 - 3200/5A 3200/5 115 170 35

Mounting bracket
MPX2 - 3500/5A 3500/5 130 185 40
M6 SCREWS MPX2 - 4000/5A 4000/5 130 185 40

MPEX Protection Current Trans. 15VA 5P10

Ratio Dimension
Stock No. Id (mm) H(mm)
Amp Od (mm)
MPX4 - 100/5A 100/5 38 133 110
MPX4 - 150/5A 150/5 38 133 80
MPX4- 200/5A 200/5 38 105 90
MPX4 - 250/5A 250/5 50 100 100 ID in mm THICKNESS
300/5 50 100 90 in mm
MPX4 - 300/5A
OD in mm
MPX4 - 400/5A 400/5 50 100 80
MPX4 - 500/5A 500/5 62 113 60
MPX4 - 600/5A 600/5 62 113 55
MPX4 - 800/5A 800/5 90 138 50 TYPE C (at angle 135 degree)
MPX4 - 1000/5A 1000/5 87 138 50
M6 SCREWS
MPX4 - 1200/5A 1200/5 85 138 50 Model : CT-BRACKET-28X72MM
MPX4 - 1500/5A 1500/5 83 138 40 Suitable to couple with the Current Transformer height
MPX4 - 1600/5A 1600/5 83 138 40
ID in mm THICKNESS MPX4 - 2000/5A 2000/5 122 170 40
more than 30mm
in mm
MPX4 - 2500/5A 2500/5 120 170 35
OD in mm
MPX4 - 3000/5A 3000/5 115 170 35
MPX4 - 3200/5A 3200/5 115 170 40
MPX4 - 3500/5A 3500/5 130 185 40
MPX4 - 4000/5A 4000/5 130 185 40

Note: Add (B) to the Standard model for brackets.

eg. MPX1B-100/5A-B.
Dimensions tolerance +- 3mm.
Other ranges available upon request.
The factory reserves the right to change

Mounting bracket
specifications without prior notice.

THICKNESS
in mm
ID in mm

OD in mm

7 8
 Wiring Diagram Panel cut-out (mm)

MMT7 series

DC AMMETER : DC current AC AMMETER : Direct connection AC AMMETER : Transformer connection

MMT9 series, all model except KW meter 3phase 4wire unbalanced

DC VOLMETER : DC voltage AC VOLMETER : Direct connection FREQUENCY METER: 1 phase / 3 phase AC

POWER FACTOR METER : Single phase AC POWER FACTOR METER : 3 phase AC MAXIMUM DEMAND METER : C.T operated
MMT9 series, for KW meter 3phase 4wire unbalanced

7 6 5

PT 1 2

3 4

CT
L1 INPUT LOAD
L2 CT
L3

WATTMETER : 3 phase 3 wire unbalanced WATTMETER : 3 phase 4 wire unbalanced WATTMETER : Single phase AC

9 10
 Notes
Odering Code Odering Code

Example to form a MPEX Measurement CT part no. Example to form a MPEX Protection CT part no.
MCX 1 – 100 /5A MPX 1 – 300 /5A
/5 = Secondary amp 5
/5 = Secondary amp 5 -B = bracket
-B = bracket
Primary amp
Primary amp 300 = 300A
100 = 100A
Accuracy class and burden
Accuracy class, and burden 1= 10P5, 15VA
1 = class 1, 15VA 2= 10P10,15VA
3 = class 3, 5VA 4= 5P10, 15VA

MPEX measurement CT MPEX protection CT

Example to form a MPEX Direct Ammeter part no. Example to form a MPEX Direct Voltmeter part no.
MMT 9 – AM – AC50A MMT 9 – VM – AC500V

AC = AC ampere AC = AC Voltage
DC =DC ampere DC =DC Voltage
50A = Ampere rating, 500V = Voltage rating

Ammeter Voltmeter

Display size Display size

7 = 72 x 72 mm 7 = 72 x 72 mm
9 = 96 x 96 mm 9 = 96 x 96 mm

MPEX metering MPEX metering

Example to form a MPEX Ammeter CT Operated part no. Example to form a MPEX Power Factor meter part no.
MMT 9 - AM – 300 /5A MMT 9 - PFM - 3 - 4
1 = 110V
2 = 240V
/5 = Secondary amp 5 4 = 415V

Primary Amp Cos-1 = Single phase

300 = 300A Cos-3 = Three phase

Ammeter, Power factor meter

Display size Display size

7 = 72 x 72 mm 7= 72 x 72 mm
9= 96 x 96 mm 9= 96 x 96 mm

MPEX metering
MPEX metering

Example to form a MPEX Kilowatt Meter part no. Example to form a MPEX Maximum Demand and
Scale plate, need to order separately
Combine CT Operated part no.
MMT - 9 - KWM - 3 - 4 according to the CT vs Wattmeter
selection chart. If the scale plate order
together with the Wattmeter, no Extra MMT 9 - MDM- 300 /5A
charge is incur.

1 = 110V
2 = 240V
/5 = Secondary amp 5
4 = 415V
Primary Amp
1 = Single phase 300 = 300A
2 = Balanced 3 phase 3 wire
3 = Unbalanced 3 phase 3 wire MDM - Maximum Demand Meter
4 = Unbalanced 3 phase 4 wire MCM - Maximum Combined Meter

Kilowatt meter Display size

7 = 72 x 72 mm
Display size
7 = 72 x 72 mm
9= 96 x 96 mm
9 = 96 x 96 mm
MPEX metering
MPEX metering

11 12
Notes Notes
Odering Code Odering Code

13 14
 CONTATTORI / CONTACTORS

CONDIZIONI AMBIENTALI ENVIRONMENT

A Le prestazioni dei contattori si riferiscono alle condizioni ambientali Contactors ratings are related to environmental conditions as
descritte dalle norme IEC 60947-4-1 cioè per temperatura ambien- defined in IEC 60947-4-1 specifications i.e. ambient temperature
te compresa tra –5° C e +40°C (35°C in media su 24h), per installa- within the range –5°C and +40°C (with an average 35°C over 24h),
zioni ad altitudini non superiori a 2000m (1) e per umidità relativa fino for installations not higher than 2000m (1) and relative humidity up to
al 50% a +40°C. Sono ammessi valori maggiori di umidità relativa a 50% at +40°C. Higher relative humidity values are allowed at lower
temperature più basse, es 90% a +20°C, con l’accortezza di limita- temperatures e.g. 90% at 20°C, provided that the condensation
re la condensa che si può formare in conseguenza della variazione which may arise as a consequence of temperature variations is
di temperatura. limited.
I contattori GHISALBA: GHISALBA contactors:
- sopportano temperature di stoccaggio comprese tra –40°C e - are suitable for storage at temperatures within the range - 40°C
+80°C to +80°C
- hanno le seguenti temperature di funzionamento: - have the following operating temperatures

Contattore / Contactors Temperatura / Temperature Tensioni di comando / Control voltages

GH15BN - GH64 -25°C + 70°C 0,85 – 1,1Uc
GH76 - GH78 -25°C + 55°C 0,85 – 1,1Uc
GH76 - GH78 -25°C + 70°C 0,95 – 1,1Uc

- grazie a materiali e tecnologie selezionate consentono di sod- - are manufactured using selected materials and techniques in
disfare le prescrizioni definite dalle norme DIN 50016 relative ai order to meet requirements described by DIN 50016
climi:
CALDO SECCO 55°C 20% di umidità relativa DRY-HOT 55° C 20% of relative humidity
UMIDO 23°C 83% di umidità relativa MOIST 23° C 83% of relative humidity
CALDO UMIDO 40°C 92% di umidità relativa MOIST-HOT 40° C 92% of relative humidity

Gli apparecchi sono stati sottoposti alle prove previste dal R.I.N.A. They were submitted to tests required by R.I.N.A. for use in
per l’impiego in climi caldo umidi con umidità relativa fino al 100% tropical climates with relative humidity up to 100%.
La lunga esperienza a bordo navi mercantili, da crociera e militari The long usage experience on board of merchant, cruising and
ed in applicazioni industriali in climi tropicali consentono l’impiego naval ships and industrial applications under tropical conditions
degli apparecchi Ghisalba anche nel casi di ambienti debolmente enables Ghisalba contactors to be used even in slightly corrosive
corrosivi e salini. Ove particolari necessità richiedano l’adozione di and salty ambients. If particolar application conditions need special
trattamenti speciali in funzione degli agenti corrosivi presenti, inter- finishing due to the presence of corrosive agents, please contact
pellare il nostro servizio tecnico-commerciale. our commercial Dept.

(1) Declassare del 10% le correnti per altitudine fino a 2600m e del 20% per altitudine fino a (1) Decrease the current value of 10% for altitude up to 2600m and of 20% up to 3400m
3400m

INSTALLAZIONE MOUNTING POSITION

La posizione di installazione normale è quella sul piano verticale The correct mounting position is with the base plate in the vertical
è ammesso il montaggio su piani inclinati fino a 25° rispetto alla plane. The device can be mounted up to 25° from the vertical with-
verticale senza che vengano compromesse le prestazioni nominali out de-rating. Contactors up to GH15TT, TN can be mounted in
degli apparecchi. I contattori fino a GH15TT, TN possono essere any position around their horizontal axis, as shown by the drawing,
montati in, ogni posizione intorno all’asse orizzontale come indicato and up to JT, JN can be fitted on EN 50 022 rail (DIN 46277-35)
in figura e fino al GH15JT, JN possono essere installati su profilato (horizontal rail).
EN 50 022 (DIN 46277-35) (profilato orizzontale)

25° 25°

GH15BN...GH15TN α= 90°

GH55B...GH78 α= 25°

A18
CONTATTORI / CONTACTORS

CATEGORIE DI IMPIEGO UTILIZATION CATEGORIES

Sono definite dalle norme CEI EN 60947-4-1 in riferimento alle Utilization categories are stated by the IEC 60947-4-1. Standard A
applicazioni tipiche dei contattori in c.a. e c.c. Ogni categoria è on the basis of typical a.c. and d.c. contactor applications. Each
caratterizzata dai valori di corrente da stabilire e da interrompere utilization category is characterized by the values of the currents to
(espressi in multipli della corrente nominale di impiego) nonché dal- be set and break (expressed as multiples of the rated operational
le relative tensioni, fattori di potenza (impieghi in c.a.) o costanti di current) and by the relevant voltages, power factor (a.c. duties)
tempo (impieghi in c.c.). La classicazione di un contattore mediante or time constant (d.c. duties). For contactors classified by their
la corrente nominale [Ie] e la tensione nominale [Ue] riferiti ad una utilization categories it is therefore not necessary to specify
determinata categoria di impiego non rende quindi necessario spe- separately the rated making and breaking capacities as these
cificare separatamente i poteri di chiusura e di interruzione, poiché values depend directly on the utilization categories.
questi valori discendono direttamente dalla categoria di impiego
stessa

CATEGORIE DI IMPIEGO SECONDO CEI EN 60947-4-1 / UTILIZATION CATEGORIES TO IEC 60947-4-1

CORRENTE ALTERNATA / ALTERNATIVE CURRENT CORRENTE CONTINUA - DIRECT CURRENT
Comando di carichi non induttivi o debolmente induttivi, forni a resistenza Comando di carichi non induttivi o debolmente induttivi, forni a resistenza
AC-1 DC-1
Non inductive or slightly inductive loads, resistance furnace Non inductive or slightly inductive loads, resistance furnace
Motori in derivazione: avviamento, frenatura in controcorrente (2) manovra
Avviamento ed arresto di motori ad anelli ad impulsi (3). Frenatura dinamica di motori in c.c.
AC-2 DC-3
Slip-ring motors: starting, switching off Shunt-motors: starting, plugging (2), inching (3). Dynamic breaking of d.c.
motors
Motori in serie: avviamento, frenatura in controcorrente (2), manovra ad
Avviamento e arresto durante la marcia di motori a gabbia (1) impulsi (3). Frenatura dinamica di motori in c.c.
AC-3 DC-5
Squirrel-cage motors: starting, switching off motors during runners (1) Series motors: starting, plugging (2) inching (3). Dynamic breaking of d.c.
motors
Avviamento, frenatura in controcorrente (2), manovra ad impulsi (3) di
Comando di lampade ad incandescenza
AC-4 motori a gabbia DC-6
Switching of incandescent lamps
Squirrel-cage motors: starting, plugging (2), inching (1)
Comando di lampade a scarica
AC-5a
Switching of electric gas discharge lamps
Comando di lampade ad incandescenza
AC-5b
Switching of incandescent lamps
Comando di trasformatori
AC-6a
Switching of trasformers
Comando di batterie di condensatori
AC-6b
Switching of capacitors banks
CATEGORIE DI IMPIEGO - AUSILIARI DI COMANDO SECONDO CEI EN 60947-5-1
UTILIZATION CATEGORIES - CONTROL CIRCUIT DEVICES TO IEC 60947-5-1
CORRENTE ALTERNATA / ALTERNATIVE CURRENT CORRENTE CONTINUA / DIRECT CURRENT
Comando di piccoli carichi elettromagnetici (≤72VA) Comando di carichi elettromagnetici
AC-14 DC-13
Control of small electromagnetic loads (≤72VA) Control of electromagnets
Comando di carichi elettromagnetici ( >72VA)
AC-15
Control of small electromagnetic loads ( >72VA)

(1) Gli apparecchi classificati in cat AC-3 possono essere impiegati per occasionali manovre ad (1) AC-3 category may be used for occasional inching or plugging for limited periods such as
impulso o frenature in controcorrente per periodi limitati come quelli relativi al posizionameto machine set-up; during such limited periods the number of such operations should not exceed
della macchina. Durante tali periodi, il numero di queste operazioni non deve essere superiore 5 per minute or more than 10 in 10 minutes
a 5 al minuto e non essere più di 10 in un periodo di 10 min. (2) Plugging, is understood to be stopping or reversing motor primary connections while the motor
(2) Per frenatura in controcorrente s’intendo la manovra di arresto o di inversione rapida del mo- is running
tore ottenuta invertendo le connessioni di alimentazione mentre il motore sta girando (3) Inching, is understood to refer to energizing a motor once or repeatedly for short periods to
(3) Per manovra ad impulsi s’intende un comando caratterizzato d una o più chiusure frequenti del obtain small movements of the driver mechanism.
circuito di alimentazione del motore, effettuate con lo scopo di ottenere piccoli movimenti del
motore stesso

A19
 CONTATTORI / CONTACTORS

COMANDO DI CONDENSATORI, TRASFORMATORI / SWITCHING OF CAPACITORS, TRANSFORMERS

Comando di trasformatori A
Comando di condensatori (1) / Capacitors switching (1) AC-6b (2)
Transformers switching
Contattore tipo Ie AC-6a (3)
Imax di picco Potenza max. manovrabile [kVAR]
Contactor type Ue≤500V t ≤ 55°C
I peak max. Max. rated power [kVAR]
t ≤ 55°C Ie [A]
[kA] [A] 230V 400V 500V 690V 400V 500V 690V
GH15BN 0,4 9 4 6 7,5 7,5 4 4 3
GH15CN 0,5 12 5 8 10 10 6 6 4,5
GH15DN 0,6 16 6 10 12,5 12,5 8 8 6
GH15ET 1,2 23 9 15 20 20 12 12 9
GH15FT 1,2 30 11 20 25 25 15 15 11
GH15GS 1,2 33 13 22 28 28 18 18 13
GH15GT 2,5 38 15 25 30 30 20 20 15
GH15HT 2,5 45 17 30 35 35 25 25 19
GH15JT 2,5 55 20 35 45 45 30 30 22
GH15KT 2,5 63 23 40 50 50 36 36 27
GH15LT 2,5 75 28 50 60 60 40 40 30
GH15MT 2,5 90 35 60 75 75 50 50 40
GH15NT 2,5 120 45 80 100 100 65 65 50
GH15PT 3 155 60 100 130 130 80 80 60
GH15RT 5 195 75 130 170 170 90 90 90
GH15ST 5 225 90 155 194 194 120 120 120
GH15TT 5 255 100 170 220 220 142 142 142
GH55B 8 300 115 200 260 260 203 203 180
GH57B 9 370 145 250 320 320 248 248 225
GH62 12 440 170 300 380 380 315 315 284
GH64 14 520 200 350 450 450 390 390 315
GH76 16 680 260 450 590 590 450 450 450
GH78 18 760 290 500 660 660 540 540 540

(1) Per il comando dei condensatori vedi anche il paragrafo “Contattori per il comando di conden- (1) For capacitors switching see also the paragraph “Capacitors switching contactors”
satori”
(2) CRITERI DI IMPIEGO PER LA MANOVRA DI CONDENSATORI TRIFASE: l’impiego di condensatori (2) UTILIZATION CRITERIA FOR 3-PHASE CAPACITORS SWITCHING: The utilization of 3-phase capa-
trifase negli impianti di rifasamento è caratterizzato da importanti sovracorrenti transitorie che citors for power factor correction involves high inrush transient overcurrents. When the power
il carico capacitivo impone alla rete all’atto dell’inserzione. Quando l’impianto di rifasamento è factor correction device is composed of two or more indipendent banks, transient overcurrent
costituito da due o più batterie da inserire separatamente, alle sovracorrenti d’inserzione della are increased due to energy transfer between live capacitor banks and the bank which is
singola batteria si sovrappongono, inoltre, sovracorrenti transitorie dovute al brusco trasferi- switched ON. These overcurrents should be limited by impendances in the circuit in order to
mento di energia dalle batterie sotto tensione a quella che viene messa in servizio. Occorre reduce stress on the installation and components. Table shows the rated powers for circuits
pertanto prevedere nel circuito opportune reattanze limitatrici atte a ridurre le sollecitazioni equipped with the most common devices used to protect switching equipment and capacitors
sugli elementi costituenti l’impianto. Nella tabella sono riportate le potenze manovrabili in tali from dangerous overcurrents. SEE ALSO PAGE “CONTACTORS FOR POWER FACTOR”
condizioni, per impianti costruiti e regolati secondo i più diffusi criteri impiegati per salvaguar-
dare dalle sovracorrenti i componenti e le batterie di rifasamento. VEDERE ANCHE A PAG. XXX
“CONTATTORI SPECIFICI PER RIFASAMENTO”

Caratteristiche tecniche
Technical data pag. A36 Schemi di collegamento
Wiring diagrams pag. A36 Marcatura contatti
Terminal marking pag. A36 Codici di ordinazione
Ordering product codes pag. A36 Dimensioni
Dimensions pag. A36 A23
OMOLOGAZIONI / APPROVALS

NORME / STANDARD

A
IEC 60947-4-1 INTERNATIONAL ELECTROTECHNICAL COMMISSION

CEI EN60947-4-1 COMITATO ELETTROTECNICO ITALIANO

OMOLOGAZIONI /APPROVALS

R.I.N.A. DNV UL cULus

GHMC, GHMD.3.10/3.01/4.00 √ √
GHMC, GHMD.3.01/R √ √
GHMCP.3.10/3.01/4.01 √
GHMCP.3.01/R √
GHMR, GHMRP √
GH15 CR √ √
GH15 BN, CN, DN √ √ √
GH15 ET, FT √ √ √
GH15 FN, GN.4.00
GH15 GT, HT, JT √ √ √
GH15 GN.22, GN.04, HN, JN √
GH15 KT, LT √ √ √
GH15 LN √
GH15 MT, NT, PT √ √ √
GH15 MN, NN, PN √
GH15RT, ST, TT √ √
GH15RN, SN, TN
GH55 √ √ √
GH57 √ √ √
GH 55B √ √
GH 57B √ √
GH 62 √ √ √
GH 64 √ √ √
GH 76 √ √
GH 78 √ √ √
GH24 √
RTD 23
RTD 32 √ √ √
RTD 42 √
RTD 65 √ √ √
RTD 74 √ √
RTD 180 √ √ √
RTD 320 √ √
RTD 800 √ √
GHA25 √
GHA32 √
GH3HB √
GH3VHB √

7
 S CAM OPERATED
ROTARY SWITCHES

SQ F
ØD

L
 CAM OPERATED
ROTARY SWITCHES

INDEX PAGE NO.

Introduction 1

Construction 2

Technical Specifications 3

Isolator Switches 4

Changeover Switches with OFF 5

Changeover Switches without OFF 6

Multistep Switches with OFF 7

Multistep Switches without OFF 8

Instrumentation Selector Switches 9

Motor Control Switches 11

Gang Switches 13

Control Switches 14

Mountings 15

Knobs and Handles 20

Accessories 20

Customised Programme 22

Ordering Code 23

Breaker Control Switches 24

Exploded Views 26

DC Switches 27
 CAM OPERATED
ROTARY SWITCHES

INTRODUCTION
Cam Operated Rotary Switches make and break the connected outputs in
required sequence by either opening or closing circuits with a set of contacts
operated by a rotary Cam.

The Cam, which closes and opens contacts, has rotary movement and
multiple positions, allowing multiple circuit functions controlled through a
single operation. With appropriate Cam design, functions like “make before
break” etc can be easily achieved. The number of positions and the switching
angles of Cam are flexible to offer wide selection of “operational sequences”
based on the requirements.

The principle applications of Cam Operated Rotary Switches are for making,
breaking and isolation of power circuits and switching the auxiliary circuits.

Further, the flexibility in the contact block selection, covering ratings and
options to select number of contacts, is another advantage. This ensures that
a right switch is chosen for the application. CAM Switches thus offer
complete design flexibility to assemble complex switching programs, contact
ratings and customize all switching applications.

The Cam Switches are suitable for AC as well as DC applications

The basic operating mechanism of Cam Switch is required to suit intended

application. “Quick-Make”, “Quick-Make-Quick-Break” and “Spring Return”
operating mechanisms are offered to cover wide range applications.

The superior engineering materials and manufacturing processes for Cam

Switch components ensure longer life, reliable electrical and mechanical
endurance and thereby safe operations for long time. “Double Butt” contacts
with silver bimetal on copper provide stable electrical performance. The
highgrade engineering plastics like nylon, celcon and glass filled polyamide
for the components ensure greater mechanical strength.

The Cam Switches incorporate most common mounting options and also
special mounting options like single hole, door interlocking and padlocking
for all applications.

International styling and finish supports the robust design and performance
of the Cam Switches. The wide option of knobs, front plates and custom
marking on the script plate make the Cam Switches compatible to the panel
designs and eliminate the need for labels on the panel.

1
 CAM OPERATED
ROTARY SWITCHES

CONSTRUCTION

Cam Assembly Contact Assembly

Series S, TP and RT Cam Switches incorporate two double break, silver alloy
contacts per stage at 180 degree disposition. The AC Switches are “Quick Make-
Slow Break” with in-built latching device feature in cam design. The Cam Switches
can be offered for DC applications with additional contacts in series according to
the DC switching voltage and with suitable deration.

Contacts : Double break type AgCdO Operating temp : -25OC to 55oC

Insulation : Glass filled polyamide Operating frequency : Upto 10kHz
with high tracking index Humidity : 95%, Rh 48 hours

S Series TP Series RT Series

AC Duty Rating DC Duty Rating

Category Typical AC Application Category Typical DC Application

AC-1 Non-Inductive or slightly DC-1 Non-Inductive or slightly Inductive Loads,

Inductive Loads, Resistance Furnaces. Resistance Furnaces.

AC-3 Squirrel Cage motors : starting DC-22 Switching of resistive loads,

switching off motors during running. including moderate overloads

AC-15 Control of AC electromagnetic loads DC-13 Control of DC electromagnets

AC-21A Switching of resistive loads, DC-23 Switching of motor loads or

including moderate overloads other highly inductive loads
(frequent switching)

AC-23-A Switching of motor loads or other ------ ------

highly inductive loads (frequent switching)

2
 S6 S10 S16 S25 S32 S40 S63
AC Rating Code Unit RT16 S80 S100 S125 S200 S400
TP6 TP10 TP16 RT25 RT32 RT40 RT63

Rated Operational Current ( Ie )

A 6 10 16 16 25 32 40 63 80 100 125 200 320
AC21A / AC1
Rated Operational Voltage (Ue ) V 440 440 690 690 690 690 690 690 690 690 690 690 690
Isolating Voltage upto ( Uiso ) V 250 250 415 415 415 415 500 500 690 690 690 690 690
Impulse withstand Voltage ( Uimp ) kV 4 4 6 6 6 6 6 6 6 6 6 6 6
Rated Uninterrupted Current ( Ith ) A 8 12 20 20 32 40 50 80 100 125 150 225 425
Rated Operational Power
AC23A 3 Phase 220 - 240V kW 1 1.8 3 3 5.5 7.5 11 15 22 30 31 37 -
380 - 440V kW 2.2 3 7.5 7.5 11 15 18.5 22 33 41 45 55 -
500 - 690V kW - - 7.5 7.5 11 15 18.5 22 30 37 41 45 -
AC3 3 Phase 110V kW 0.25 0.37 0.55 0.55 1.5 2.2 2.5 3 - - 8.3 - -
220 - 240V kW 0.8 1.5 2.2 2.2 4 5.5 7.5 15 18.5 22 17.2 22 -
380 - 440V kW 1.5 3 5.5 5.5 7.5 11 15 18.5 22 33 37 45 -
500 - 690V kW - - 5.5 5.5 7.5 11 15 18.5 22 33 37 45 -
Short Circuit Capacity
Fuse Size (Type gG/gM) A 6 10 16 16 25 32 40 63 80 100 125 200 400
Rated Fuse Short Circuit Current kA 3 3 5 5 10 10 20 20 25 25 25 25 50
DC Rating
DC1 (Power) 48V A 6 10 16 16 25 32 40 63 80 100 125 160 250
DC13 (Control) 24V A 4 6 16 16 25 32 40 63 80 100 125 160 250
Terminal Cross Section
Single / Multiple min mm2 0.7 0.7 1.5 1.5 1.5 2.5 2.5 4 6 10 10 10 20
max mm2 1.5 1.5 4 4 4 6 10 16 25 35 50 70 140
Fine strand with sleeve min mm2 0.7 0.7 1 1 1 1.5 2.5 2.5 6 10 10 10 20
max mm2 1.5 1.5 2.5 2.5 2.5 4 6 10 16 25 35 50 100
Terminal screw Metric M3 M3 M3.5 M3.5 M4 M4 M5 M5 2 x M5 2 x M5 2 x M5 M10 M10
Terminal Tighting Torque NM 0.5 0.5 0.8 0.8 1.2 1.2 2 2 2.5 2.5 2.5 2.5 4

Switch life under standard operating conditions : Mechanical : 100,000 operations @ 300 cycles / hour Electrical : 10,000 operations at 100 % rated duty for 120 cycles / hour
TECHNICAL SPECIFICATIONS

CSA / UL RATINGS

S16 S25 S32

AC Rating Code Unit S6 S10 TP16 TP25 TP32 S40 S63 S80 S100 S200
RT16 RT25 RT32

Ampere Rating A 6 10 15 20 30 40 55 70 95 175

Operational Voltage V 300 300 300 600 600 600 600 600 600 600
HP Rating 1 phase 120V HP 0.25 0.33 0.33 1 1 2 3 - - -
240V HP 0.50 0.75 1 3 3 5 7.5 - - -
American : UL 508 (1994)

3 phase 120V HP 0.75 1 1 2 2 5 7.5 10 15 20

240V HP 1 1 2 5 5 10 15 20 25 25
CAM OPERATED

480V HP - - - 10 10 20 30 40 50 50
European : IEC-60947-1 : 1988

IEC-60947-5 : 1992
IEC-60947-3 : 1990
ROTARY SWITCHES

Canadian : CSA 22.2 No.14-1991

Conformance to standards :

600V HP - - - 15 15 24 40 50 50 50

3
Note :- AC4 Rating = AC3 rating / 2, Star Delta Rating = 1.6 X AC3 Rating
 CAM OPERATED
ROTARY SWITCHES

ISOLATOR SWITCHES
Isolators are ON-OFF Switches to isolate the power to a particular area of operation.
The Isolator Switches are offered in a wide range, from 1 pole to 12 poles. Isolators with
spring return, upto 4 poles are available to energise circuits. Isolators with
preclose contacts are used for safety circuits and for connecting neutral and earth lines.
Isolators are generally rated for AC1/AC21 while for motor applications, they need to be
rated for AC3/AC23A duty.
Applications : Switching of main/control and instrumentation circuits, motor
ON - OFF and other special application circuits.
Isolators - Connecting
On/Off Switches Diagram
Operating Quadrant 1 3 5 7 9 11 13 15 17 19 21 23
Stayput Spring with
return Preclose

2 4 6 8 10 12 14 16 18 20 22 24
1 to 12 pole

Stayput

OFF ON OFF

Script Plate ON OFF

ON ON
Marking
OFF

60 Degree 90 Degree 90 Degree Complete Rotation No of

Description
Stage
Programme Code Programme Code Programme Code
1 Pole 61001 61191 61195 1
2 Pole 61002 61192 61198 1
3 Pole 61003 61199 61197 2
4 Pole 61004 61194 61196 2
5 Pole 61005 - - 3
6 Pole 61006 61906 - 3
7 Pole 61007 - - 4
8 Pole 61008 - - 4
9 Pole 61009 - - 5
10 Pole 61010 - - 5
11 Pole 61011 - - 6
12 Pole 61012 - - 6
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, 100, 125, 200 and 400 Amps.

Isolators with Preclose Contact Spring Return Isolators 45 Degree

1 3 5 7 9 1 3 5 7 Spring return to OFF 1 3 5 7

0 0
90 45
ON OFF S
T
OFF A
R
T

2 4 6 8 10 2 4 6 8 2 4 6 8
4 to 5 pole 61194 1 to 4 pole

Programme No of Programme No of
Description Description
code stage code stage
4 Pole - 1 Pole Preclose 61194 2 1 Pole Spring Return 61351 1
4 Pole - 3 Pole Preclose 61904 2 2 Pole Spring Return 61352 1
5 Pole - 3 Pole Preclose 61905 3 3 Pole Spring Return 61353 2
3 Pole with Neutral Terminal 61178 2 4 Pole Spring Return 61354 2
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and
100, 125, 200 and 400 Amps. 63 Amps.

4
 CAM OPERATED
ROTARY SWITCHES

CHANGEOVER SWITCHES WITH OFF

Changeover Switches, also called Double Throw Switches, are available with OFF and without OFF. These are used to
operate two different circuits, with different number of inputs and outputs. Changeover Switches without jumpers (potential
free contacts) are used to connect two different circuits from two different sources, with two different operating voltages or
any other incompatible lines. All contacts by default are “Break Before Make” (BBM) type to avoid overlapping of different
circuits while overlapping changeover contacts. “Make Before Break” (MBB) type are offered against specific requirements.
Application : EB to Generator Changeover, Auto/Manual changeover, Standby/Remote Changeover and other special
application circuits. Mainly used in Distribution Panels, UPS etc.

Changeover with Off

Operating Quadrant Connecting Diagram Without Jumper
Stayput Spring Without A1 A2 B1 B2 C1 C2 D1 D2 E1 E2 F1 F2 G1 G2 H1 H2 2 4 6 8 10 12
return jumper

1 2 3 4 5 6 7 8 1 3 5 7 9 11
1 to 8 pole 1 to 3 pole
Stayput
0 0
1 2
1 2

60 Degree No of 90 Degree
Description Description
Programme code stage Programme code
1 pole 61025 1 1 pole 61151
2 pole 61026 2 2 pole 61152
3 pole 61027 3 3 pole 61153
4 pole 61028 4 4 pole 61154
5 pole 61029 5 - -
6 pole 61030 6 - -
7 pole 61031 7 - -
8 pole 61032 8 - -
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, 100, 125, 200 and 400 Amps.

Spring Return
Spring return to "0" # Spring return from 1 to "0"
0 0 0
45 90
0

1 2 1
2

45 Degree Spring Return to “ 0” No of Spring Return from 1 to “ 0”

Description Programme code stage Description Programme code
1 pole 61361 1 1 pole 61364
2 pole 61362 2 2 pole 61365
3 pole 61363 3 3 pole 61369
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

Without Jumper
Spring return to "0"
0 0
1 2
1 2

60 Degree Stayput without Jumper No of 45 Degree Spring Return without Jumper

Description Programme code stage Description Programme code
1 pole 1 pole
without jumper 61625 1 without jumper 61761

2 pole 2 pole
without jumper 61626 2 without jumper 61762

3 pole
without jumper 61627 3 - -

Feasible ampere rating for S, TP and RT Series : Feasible ampere rating for S, TP and RT Series :
6, 10, 16, 25, 32, 40, 63, 80, 100, 125, 200 and 400 Amps. 6, 10, 16, 25, 32, 40 and 63 Amps.

5
 CAM OPERATED
ROTARY SWITCHES

CHANGEOVER SWITCHES WITHOUT OFF

Changeover without Off
Operating Quadrant Connecting Diagram Without Jumper
Stayput Spring Without A1 B1 C1 D1 E1 F1 G1 H1 J1 K1 L1 M1 2 4 6 8 10 12 14 16
A2 B2 C2 D2 E2 F2 G2 H2 J2 K2 L2 M2
return jumper

1 2 3 4 5 6 7 8 9 10 11 12 1 3 5 7 9 11 13 15

1 to 12 pole 1 to 4 pole

Stayput
1 1
2
2 2

90 Degree Complete Rotation No of 60 Degree No of

Description Programme code stage Description Programme code stage
1 Pole 61037 1 5 Pole 61041 5
2 Pole 61038 2 6 Pole 61042 6
3 Pole 61039 3 7 Pole 61043 7
4 Pole 61040 4 8 Pole 61044 8
- - - 9 Pole 61045 9
- - - 10 Pole 61046 10
- - - 11 Pole 61047 11
- - - 12 Pole 61048 12
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, 100, 125, 200 and 400 Amps.

Spring Return
Spring return to "1"
1
2

45 Degree Spring Return No of

Description Programme code stage
1 Pole 61371 1
2 Pole 61372 2
3 Pole 61373 3
Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

Without Jumper
Spring return to "1"
1 1
2
2 2

90 Degree Stayput without Jumper No of 45 Degree Spring return without Jumper

Description Programme code stage Description Programme code
1 pole 1 pole
without jumper 61637 1 without jumper 61771

2 pole
without jumper 61638 2 - -

3 pole
without jumper 61639 3 - -

4 pole
without jumper 61640 4 - -

Feasible ampere rating for S, TP and RT Series : Feasible ampere rating for S, TP and RT Series :
6, 10, 16, 25, 32, 40, 63, 80, 100, 125, 200 and 400 Amps. 6, 10, 16, 25, 32, 40 and 63 Amps.

6
 CAM OPERATED
ROTARY SWITCHES

MULTISTEP SWITCHES WITH OFF

Multi-Step Switches, also called Pole-Way Switches, are available
with OFF and without OFF.
Multi-Step Switches connect different circuits to a common supply or vice-versa.
Multi-Step Switches with 1 pole, 2 poles and 3 poles are popular for 1 phase,
2 phase and 3 phase supply.
Applications : As Tap Changing Switch for Transformer/Stabiliser and other
special application circuits.

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF

NO. OPERATING QUADRANT TERMINAL MARKING STAGES

61059 1 Pole - 2 Way 2 WAY 1

0
0 60 A1 B1 C1 D1
61079 2 Pole - 2 Way 1 2
1 A2 2 B2 3 C2 4 D2
61099 3 Pole - 2 Way 2 3
61130 4 Pole - 2 Way 1 to 4 pole 4
61060 1 Pole - 3 Way 3 WAY 2
0
OFF 90
A3 1 A1 B3 2 B1 C3 3 C1 D3 4 D1
61080 2 Pole - 3 Way 3
3 1
61100 3 Pole - 3 Way A2 B2 C2 D2 5
2
61131 4 Pole - 3 Way 1 to 4 pole 6
61061 1 Pole - 4 Way 4 WAY 2
0 A1 B1 C1 D1
0
60
61081 2 Pole - 4 Way 1
1 2 3 4 4
A4 A2 B4 B2 C4 C2 D4 D2
61101 3 Pole - 4 Way 4 2 A3 B3 C3 D3 6
3
61132 4 Pole - 4 Way 1 to 4 pole 8
5 WAY
61062 1 Pole - 5 Way 0
60
A5 A1 B5 B1 C5 C1 3
0
5 1 1 2 3
61082 2 Pole - 5 Way A4 A2 B4 B2 C4 C2 5
4 2
61102 3 Pole - 5 Way 3 A3 B3 1 to 3 pole C3 8
6 WAY A1 B1 C1
61063 1 Pole - 6 Way 0
45 3
0
1 A6 1 A2 B6 2 B2 C6 3 C2
61083 2 Pole - 6 Way 6 2 6
A5 A3 B5 B3 C5 C3
5 3
61103 3 Pole - 6 Way 4 A4 B4
1 to 3 pole C4 9
7 WAY
A7 A1 B7 B1
61064 1 Pole - 7 Way 0
0
45 4
7 1 A6 1 A2 B6 2 B2
6 2
A5 A3 B5 B3
61084 2 Pole - 7 Way 5
4
3
B4
7
A4 1 to 2 pole
8 WAY A1
0
0 30 A2
1
2 1 A3
61065 1 Pole - 8 Way 3
4
8 4 A8 A4
7 6 5 A7 A6 A5

9 WAY A1
0
0 30 A2
1
2 A9 1 A3
61066 1 Pole - 9 Way 9 3 5
8 4 A8 A4
7 6 5 A5
A7 A6

10 WAY A1
0
0 30 A10 A2
1
10 2 A9 1 A3
61067 1 Pole - 10 Way 9 3
5
4 A8 A4
8
7 6 5 A7 A6 A5

11 WAY A11 A1
0
0 30 A10 A2
11 1
61068 1 Pole - 11 Way 10 2 A9 1 A3 6
9 3
4 A8 A4
8
7 6 5 A7 A6 A5

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, 100, 125 and 200 Amps.

7
 CAM OPERATED
ROTARY SWITCHES

MULTISTEP SWITCHES WITHOUT OFF

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES

61049 1 Pole - 3 Way 3 WAY 2

61069 2 Pole - 3 Way 3
A1 B1 C1 D1 E1 F1
61089 3 Pole - 3 Way 0
5
1 60 A2 B2 C2 D2 E2 F2
61120 4 Pole - 3 Way 2
1 2 3 4 5 6 6
A3 B3 C3 D3 E3 F3
61124 5 Pole - 3 Way 3 8
6 Pole - 3 Way 1 to 6 pole
61126 9
61050 1 Pole - 4 Way 4 WAY A1 B1 C1 D1 2
0
1 90
61070 2 Pole - 4 Way A4 1 A2 B4 2 B2 C4 3 C2 D4 4 D2 4
4 2
61090 3 Pole - 4 Way 6
61121 4 Pole - 4 Way
3 A3 B3 1 to 4 pole C3 D3 8
5 WAY A1 B1 C1 D1
61051 1 Pole - 5 Way 0
3
60
1 A2 B2 C2 D2
61071 2 Pole - 5 Way 2 1 2 3 4 5
61091 3 Pole - 5 Way 5 3
A5 A3 B5 B3 C5 C3 D5 D3 8
4
61122 4 Pole - 5 Way A4 B4 1 to 4 pole C4 D4 10
6 WAY A1 B1 C1
61052 1 Pole - 6 Way 0
60
3
1 A6 A2 B6 B2 C6 C2
6 2 1 2 3
61072 2 Pole - 6 Way 6
A5 A3 B5 B3 C5 C3
5 3
61092 3 Pole - 6 Way 4
A4 B4 1 to 3 pole C4
9
7 WAY A1 B1 C1
61053 1 Pole - 7 Way 0
45 A2 B2 C2 4
1
2
61073 2 Pole - 7 Way A7 1 A3 B7 2 B3 C7 3 C3 7
7 3
6 4 A6 A4 B6 B4 C6 C4
61093 3 Pole - 7 Way 5
A5 B5 1 to 3 pole C5 11
8 WAY A1 B1 C1
61054 1 Pole - 8 Way 0
45 A8 A2 B8 B2 C8 C2 4
1
8 2
61074 2 Pole - 8 Way A7 1 A3 B7 2 B3 C7 3 C3 8
7 3
6 4 A6 A4 B6 B4 C6 C4
61094 3 Pole - 8 Way 5
A5 B5 1 to 3 pole C5 12
9 WAY A1 A2
0
1 30
2 A3
3
61055 1 Pole - 9 Way 4 1 A4 5
9 5 A5
8 7 6 A9
A8 A7 A6
10 WAY A1 A2
0
1 30
2 A3
3
61056 1 Pole - 10 Way 10 4 A10 1 A4 5
9 5
A9 A5
8 7 6
A8 A7 A6

11 WAY A1 A2
0
1 30 A11 A3
2
11 3
61057 1 Pole - 11 Way 10 4
A10 1 A4 6
9 5 A9 A5
8 7 6
A8 A7 A6

12 WAY A12 A1 A2
0
1 30 A11 A3
12 2
3
61058 1 Pole - 12 Way 11
10 4
A10 1 A4 6
9 5 A9 A5
8 7 6
A8 A7 A6

Multistep Switches without Jumper

4 WAY 2
0
1 90
1 Pole - 3 Way
2
61649 Without Off 1 3 4 5 3
Without Jumper 3
6

1 Pole - 4 Way 4 WAY

6
61650 Without Off 2 10 2
WithoutJumper 1
0
90
1 3 4 5 8 7 9 11 12 13 16 15
2 Pole - 4 Way 4 2
14
61670 Without Off 4
Without Jumper 3 1 to 2 pole

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40, 63, 80, 100, 125 and 200 Amps.

8
 CAM OPERATED
ROTARY SWITCHES

Voltmeter Selector Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES

0
OFF 90
L1
V V
L2 V
61312 3 ph Line to Line BR RY
L3 2
YB
R Y B

0
OFF 45
3 ph Line to Line RY RN
61313 & Line to YB YN 3
L1
Neutral BR BN
L2
V1 V2
L3 V
L4
0
RY
60
3 ph Line to Line, BN YB R Y B N
61314 Line to Neutral & 3
YN BR
Without Off RN

0
L1
OFF 45
L2
RY RN V V
3 ph Line to Line L3 V
61317 YB 3
& L1 to N BR
L4

R Y B N

R L1
0
OFF 45 Y L2
RY L1L2
3 ph Line to Line B L3
L2L3
61318 YB 4
2 Sources BR L3L1 R Y B L1 L2 L3
V1 V2
V

0
L1
OFF 90
L2
3 ph Line to L3 V V
61311 BN RN
L4
V 2
Neutral
YN
R Y B N

0
RY
60 L1
L2
3 ph Line to Line YB V V
61319 L3 V 2
Without Off BR
R Y B

Feasible ampere rating for S, TP and RT Series : 6, 10 and 16 Amps.

Voltmeter and Ammeter Selector Switches
PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES
0
L1
OFF 90 A A
3 Voltages L2 A
61336 Line - Line & 3 1 L3 5
V V
3 Currents 2 L2
A
B Y R V
L1 L3
0 L1
1 90
L2 A A
4 Voltages A
L3
61337 & 4 2
N 6
V V
3 Currents 3 A
V
L1 L2 L3 N B Y R

0
L1
OFF 90 A A
3 Voltages L2 A
61338 Line to Neutral & 3 1
L3
5
V N
3 Currents 2
V
A
L1 L2 L3 B Y R

Feasible ampere rating for S, TP and RT Series : 6, 10 and 16 Amps.

9
 CAM OPERATED
ROTARY SWITCHES

Ammeter Selector Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES
0 L1
OFF 90
1 Pole - L2
A
A
61325 3 Transformer B R
L3
A 3
with OFF Y A
R Y B
0
L1
ON 90

1 Pole - A A
61321 A 1
1 Transformer OFF

A
R

0 L1
OFF 90
L2
1 Pole - A A
61331 3 1 A 2
2 Transformer
2
A
Y R
0
L1
2
90
1 Pole - L2
A A
61384 3 Transformer 1 3
L3 A 3
without OFF
A
B Y R
0 R
1
90
1 Pole - Y
B A A
61326 4 Transformer 4 2
N A 4
with OFF 3 A L4 L1
L3 L2

90
0 L1
0
2 Pole - L2 A1 A2
61327 2 Transformer 1 2 A 3
with OFF R1 R2
Y1 Y2

0
OFF 90
3 Pole -
61328 3 Transformer B R 5
with OFF Y
L1

L2 A1 A2
A
90
0 L3
Y
3 Pole - 1S1 1S2 2S1 2S2 3S1 3S2
61329 3 Transformer R B 5
without OFF

0
L1
1
90
4 Pole - L2
L3 A1 A2
61330 4 Transformer 4 2 A 6
N
without OFF 3
1S1 1S2 2S1 2S2 3S1 3S2 4S1 4S2
L1
Direct ammeter OFF 90
0
L2
Selector without L3 A1 A2
71000 B R A 5
Current R1 Y1 B1
Transformer Y R2 Y2 B2

Feasible ampere rating for S, TP and RT Series : 6, 10 and 16 Amps.

Power Factor Meter and Wattmeter Switches

L1 3
One Current OFF
90
0
L2 1
Transformer L3
7 5
73078 ON
2
2
One Voltage PF
Transformer 8 6

0
6 7
OFF 90 L1
L2
Two Current L3
PF
73079 ON ON 2
Transformer 1 2
OFF

0 14
OFF
90
L1
Two Wattmeter L2
73071 1 2
L3 2 9 5
Method
13 17 15 1 6 3 8
18

Feasible ampere rating for S, TP and RT Series : 6, 10 and 16 Amps.

10
 CAM OPERATED
ROTARY SWITCHES

MOTOR CONTROL SWITCHES

Motor Control Switches directly operate the motor with AC3 or AC4 duty rating.
They are typically used for “Forward-Reverse”, “Star-Delta” and “Two Speed
Forward-Reverse”. Motor Control Switches are also designed to operate, with a
contactor
Motor Reversing Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF

NO. OPERATING QUADRANT TERMINAL MARKING STAGES

60
0 L1
61210 2 Pole 0
L1
2
1 2
UV L2 UVW
L2 L3
M 2~ M 3~
61211 3 Pole L1 L2 L1 L2 L3 3
Spring return to "1"
0
0 45 L1
1 2 L2
3 Pole UVW
61253 L3 3
Spring Return M
L1 L2 L3 3~

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

Motor Switches/Star Delta Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES

Y 60
0

OFF - STAR - 1
61200 L1 4
DELTA
L2
L3

L1 L2 L3
U1 U2
V1 M V2
0 45
0
3~
Y W1 W2
Spring Return
61201 from STAR 4
to OFF

L1
0
L2
0 45
Y Y L3

61203 Standard 5
L1 L2 L3
U1 U2
V1 M V2
3~
W1 W2

L1 L2 L3

4 1
C 3 2
Star Delta with Y 45
0
C
Sequence 0
61239 e 3
Locking &
C1 e
LMD Contacts A1 B1
M3 ~
Y-
C

A2 B2 C2 5 6 7

L1 L2 L3 1
2
0
Y 90
For Use with W1 V1 U1
61240 0 4
Contactors
4
M U2
3~ V2
W2

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

11
 CAM OPERATED
ROTARY SWITCHES

Motor Switches/Multi Speed Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES

1 60
0 L1 U1 U2
M
L2 V1 3~ V2
2 Speed Single 0 2
W2
61212 L3 W1 4
Winding
L1 L2 L3

60
0 L1 U1 U2
0 M
L2 V1 3~ V2
2 Speed Single 1 2
W1 W2
61213 L3 4
Winding
L1 L2 L3

0 L1 L2 L3 17
1 60 18
2 Speed Single 0 2 U1 M U2
61215 Winding for Use V1 3~ V2 5
W1 W2
L1 L2 L3
20
0 L1 U1 U2
0 60 M
2 Speed Single 1 1
L2 V1 3~ V2
W1 W2
61217 Winding L3 6
2 2
Reversing
L1 L2 L3

60
0 L1
1
2 Speed 0 2
L2 U1 U2
M
61219 2 Separate L3 V1 3~ V2 3
W1 W2
Windings
L1 L2 L3

60
0 L1 1U1 2U1
OFF M
3 Speed 1 L2 1V1 3~ 2V1
1W1 2W1
61226 2 Windings L3 6
2
(O-A-B-A) 3 1U2 1V2 1W2
L1 L2 L3

90
0 L1 1U1 2U1
OFF M
3 Speed L2 1V1 3~ 2V1
1W1 2W1
61243 2 Windings 3 1 L3 6
(O-A-B-B) 2 1U2 1V2 1W2
L1 L2 L3

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

Motor Switches - Start and Run Switches

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF
NO. OPERATING QUADRANT TERMINAL MARKING STAGES
Spring return from Start to "0"
1
L1
START
Split - Phase N U1
61208 M K1 2
Start 0 U2

L1 N
Spring return from Start
L1
0
Split - Phase N U1 Z1
61209 1 2 M 3
Start Reversing U2 Z2
START START
L1 N

60
0 1 L1
0
Split - Phase 1 2 1 L2 2 L1 2 L2
61270 Start Reversing 3 L1
M 3 L2 3
Switching
1 L1 1 L2

Feasible ampere rating for S, TP and RT Series : 6, 10 and 16 Amps.

12
 CAM OPERATED
ROTARY SWITCHES

GANG SWITCHES
The Gang Switches increase capacity of circuits by ganging in serial or parallel
operations for different circuit capacity. Serialing enhances power of battery supply
and paralleling, the power of resistor.
Applications : In railway coaches for controlling the battery supply. Also in telecom
panels and special application circuits.

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF

NO. OPERATING QUADRANT TERMINAL MARKING STAGES

L1 A1 A2

2 Gang with OFF N A B

61109 1
1 Pole
1 pole
2 GANG L1

A1 A2
0
0 60 L1
2 Gang with OFF 1
61117 N A B 2
2 Pole
2
L1 N B1 B2 2 pole

L1 A1 B1 C1 A2 B2 C2
L2
2 Gang with OFF
61111 L3 3
3 Pole
A B
L1 L2 L3
3 pole

L1 A1 A2 A3

3 Gang with OFF N A B C

61110 2
1 Pole
1 pole
3 GANG L1

0
L1 A1 A2 A3
OFF 90 L2
3 Gang with OFF L3
61118 3 1
A B C 3
2 Pole
2 L1 L2 L3 B1 B2 B3
3 pole

L1 A1 A2

3 Gang with OFF N A B

61112 5
3 Pole
1 pole
L1

A1 A2
2 Gang, Series L1
61113 with OFF N A B 1
1 Pole 2 GANG 2 pole
L1 N B1 B2
0
OFF 90 L1 A1 B1 C1 A2 B2 C2
2 Gang, Series L2
3 1
61115 with OFF L3 2
2 Pole 2 A B 3 pole
L1 L2 L3

L1 A1 B1 C1 A2 B2 C2
2 Gang, Series L2
61114 with OFF L3 3
3 Pole A B 3 pole
L1 L2 L3
2 GANG SERIES PARALLEL
0
90 L1 A1 B1 A2
2 Gang, Series - OFF
N
61116 Parallel with OFF 3 1 A B 2
2 Pole L1 N 3 pole
2

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

13
 CAM OPERATED
ROTARY SWITCHES

CONTROL SWITCHES
Control Switches are used to energise contactors for controlling motor operations.
Most of the switches are “Spring Return” type for latching of the circuit with NO
contact and facilitate tripping by the tripping device.
Applications : Control Switches offer unique alternative to multiple “Push Button
Stations”, when one Switch controls instead of many Push Buttons. Control Switch with
many positions are offered for a suitable combination.

PROG DESCRIPTION SCRIPT PLATE MARKING/ CONNECTING DIAGRAM/ NO. OF

NO. OPERATING QUADRANT TERMINAL MARKING STAGES
L1
1 Pole STOP - Spring return
N
61300 START with 0
START A1 A2 1
Spring Return STOP
4
STOP START 2
L1
2 Pole STOP - N
61388 START with 01
START
1 3 2
Spring Return 2 4

1 Pole STOP - Spring return from start to "1"

START with L1
61301 1 N
Spring Return START
01 1 3 1
from Start to Run 0
START

2 4

61701 Without Jumper

STOP - START Spring return from Start
L1
SWITCH with
61307 0
N
Spring Return to 0
1 2
3
1 5
Run for 2 Units 1 2
START
START
2
6
4 2
START START
61707 Without Jumper
L1
N1
Contactor Control L2
N2
61366 with Spring Spring return to "0" 1 2
15 7 3 2
Return to OFF START 2 6 8 4
0
1 2

P + LS
Motor Voltage _ SERIES
61271 N 4 SPLIT 2
6 M
Control Switch 2 FIELD
1 5 LS

Feasible ampere rating for S, TP and RT Series : 6, 10, 16, 25, 32, 40 and 63 Amps.

Notes :

14
 CAM OPERATED
ROTARY SWITCHES

MOUNTINGS
Feasibility ˆ
Mounting
Description S6/ S25/ S40/ S80/100/ S200/
Code S16
10 32 63 125 400
B00 Front Mounting S25/S32 Switches with 48x48 Plate ˆ
B02 Rear/Back Mounting with Standard Front Plate ˆ ˆ ˆ ˆ ˆ ˆ
B03 Front Mounting, Standard Mounting Plate ˆ ˆ ˆ ˆ ˆ ˆ
B12 Rear/Back Mounting with next size Plate ˆ ˆ ˆ ˆ ˆ
B13 Front Mounting with next size Plate ˆ ˆ ˆ ˆ ˆ ˆ
B14 Single Hole Mounting 48x 48 Plate for S6 to S32 ˆ ˆ ˆ
B19 Single Hole Mounting 32x 32 Plate for S6 & S10 ˆ ˆ
B21 Din Rail Mounting on 35 mm Rail ˆ ˆ ˆ
B30 Front Mounting with Rectangular Padlock ˆ ˆ ˆ ˆ ˆ
B32 Rear/Back Mounting,Door Interlock + Rectangular Padlock (B42+B30) ˆ ˆ ˆ ˆ ˆ
B33 Front Mounting with Round Padlock ˆ ˆ ˆ ˆ ˆ
B34 Rear Mounting, Door Interlock + Round Padlock (B33+B42) ˆ ˆ ˆ ˆ ˆ
B41 Rear Mounting with Door Clutch Mechanism( Door Opens in both pos) ˆ ˆ ˆ ˆ ˆ
B42 Rear Mounting with Door Interlock ˆ ˆ ˆ ˆ ˆ
B51 Single Hole Mounting , Key operated without Front Plate ˆ ˆ
B53 Single Hole Mounting , Key operated with Front Plate ˆ ˆ ˆ
B63 Front Mounting ,Knob/Handle Operatable, Lockable with Key ˆ ˆ ˆ
B90 Front Mounting with Centre key Lock ˆ ˆ
F32 Door Clutch + Rectangular Padlock Mounting Plate at front ˆ ˆ ˆ ˆ ˆ
F41 Door Clutch without Padlock, Mounting Plate at front ˆ ˆ ˆ ˆ ˆ
F47 Door Clutch, Front Plate of next size, Mounting Plate at front ˆ ˆ ˆ ˆ ˆ
M17 SS Enclosure Max stages upto 4 upto 4 upto 3
A17 Aluminium Enclosure Max stages upto 4 upto 3 upto 2
B17 PVC/ABS Enclosure Max stages upto 4 upto 4 upto 4
B31 PVC/ABS Enclosure with Round Padlock Max stages upto 3 upto 2 upto 2

Front Mountings

B 03

S 3 to 5 ØB3 Drilling plan Drilling plan

Panel gap 6 / 10 Amps only
ØB3
ØB2
ØB2
SQ F
ØD

L SQ B1
IP 55 protection from front
Length L = No of Stages of Prog x S + W

Quote B13 for next Bigger size front plate

TYPE B1 B2 B3 D F S W Max
S6/S10/TP6/TP10 20 9 4.5 33 32 9.5 18.5 12
S16/TP16/RT16 36 12 4.5 46 48 12 26 21
S25/S32/RT25/RT32 48 12 5.5 52 64 15 27 15
S40/S63/RT40/RT63 68 15 5.5 76 88 21 33 10
S80/S100/S125 68 15 5.5 92 88 26 40 10
S200 68 15 5.5 88 88 32 40 10
S400 68 15 5.5 88 88 64 40 4

15
 CAM OPERATED
ROTARY SWITCHES

B 19

Locking lever
S 3 Max. 3
Panel gap

13
ØD

F
L H 23
Length L = No of Stages x S + W Drilling plan
IP 65 protection from front
Quote B14 for next Bigger size front plate

TYPE CODE D F S H W Max

B19 33 32 9.5 10 28.5 12
S6/S10/TP6/TP10
B14 33 48 9.5 13 28.5 12
S16/TP16/RT16 B19 46 48 12 13 36 21
S25/S32/RT25/RT32 B19 52 48 15 13 37 15

B 53

3 to 5 Drilling plan
S Panel gap B3

B2
ØD

B1
L FRONT PLATE
IP 40 protection from front
Length L = No of Stages x S + W

Quote B51 for mounting without front plate

TYPE B1 B2 B3 D F S W Max
S16/TP16/RT16 23 13.5 2.5 46 28 12 37 5
S25/S32/RT25/RT32 23 13.5 2.5 52 28 15 38 5

Lockable Mountings

B 33

S Drilling plan
3 to 5
Panel gap ØB3
ØB2

ON
ØD

SQ B1
L H F
Length L = No of Stages x S + W
IP 55 protection from front
TYPE B1 B2 B3 D F H S W Max
S16/TP16/RT16 36 12 4.5 46 65 26 12 26 12
S25/S32/RT25/RT32 36 12 4.5 52 65 26 15 27 8
S40/S63/RT40/RT63 68 15 5.5 76 95 31 21 33 6
S80/S100/S125 68 15 5.5 92 95 31 26 40 6
S200 68 15 5.5 88 95 31 32 40 6
S400 68 15 5.5 88 95 31 64 40 3

16
 CAM OPERATED
ROTARY SWITCHES

B 30

3 to 5
S H F1
Panel Drilling plan
gap Ø5.5 B2
0

ØD
1

F2
B1
L

IP 55 protection from front

F3
Length L = No of Stages x S + W

TYPE B1 B2 D F1 F2 F3 H S W Max
S16/TP16/RT16 48 12 46 75 102 13.5 23 12 26 12
S25/S32/RT25/RT32 48 12 52 75 102 13.5 23 15 27 8
S40/S63/RT40/RT63 68 15 76 98 126 16 25 21 33 6
S80/S100/S125 68 15 92 98 126 16 25 26 40 6
S200 68 15 88 98 126 16 25 32 40 6
S400 68 15 88 98 126 16 25 64 40 2

B 63
Drilling plan
3 to 5 Ø 5.5
48
S Panel
gap
B2
ØD

B5
L
IP 40 protection from front B4
Length L = No of Stages x S + W

for handles instead of knob, key arrangement comes on top

TYPE B2 B4 B5 D F S W Max
S16/TP16/RT16 15 23 43.5 46 64 12 45 12
S25/S32/RT25/RT32 15 23 43.5 52 64 15 45 12
S40/S63/RT40/RT63 15 23 43.5 76 64 21 47 6

Enclosure Mountings

B 31

B
Ø 4.5

ON
F

E D A
Drilling plan

TYPE A L B D E F Stages
S16/TP16/RT16 42 110 80 66 60 90 3
S25/S32/RT25/RT32 42 125 100 70 80 115 2
S40/S63/RT40/RT63 48 175 125 90 105 155 2

17
 CAM OPERATED
ROTARY SWITCHES

M 17

D1
Drilling plan

2Holes
0
1 2

A2
Ød
ØA3

D2
Rubber grommet

A1
D3

TYPE A1 A2 A3 D1 D2 D3 Max
S6/S10/TP6/TP10 70 60 4 85 89 98 4
S16/TP16/RT16 70 60 4 85 89 98 4
S25/S32/RT25/RT32 70 60 4 85 89 98 3
16 Amp Forward/Reverse 81 65 5 75 75 110 -

Rear Mountings

B 02
3 to 5 Drilling plan
Panel gap A2(Base)
S Front / Base B2(Cover)
B3(Cover)
sqD

A1(Base)
G
L B1(Cover)

Length L = No of Stages x S + W

Quote B12 for next bigger size front plate

TYPE A1 A2 B1 B2 B3 D F G S W Max
S6/S10/TP6/TP10 36 M5 36 9 4.5 48 32 4.5 9.5 22 10
S16/TP16/RT16 48 M5 36 12 4.5 60 48 3.5 12 30 12
S25/S32/RT25/RT32 48 M5 48 12 4.5 60 64 3.5 15 31 8
S40/S63/RT40/RT63 68 M6 68 15 5.5 84 88 5 21 41 6
S80/S100/S125 81 M6 68 15 5.5 101 88 5 26 48 6
S200 81 M6 68 15 5.5 101 88 5 32 48 6
S400 81 M6 68 15 5.5 101 88 8 64 48 3

B 21

M4 Drilling plan
10 3 to 5
S ØB2 Ø4.5
Panel gap
ØD
56

B1
L

IP 40 protection from front Length L = No of Stages x S + W

TYPE B1 B2 B3 D F S W Max
S6/S10/TP6/TP10 20 9 4.5 33 32 9.5 28.5 10
S16/TP16/RT16 36 12 4.5 46 48 12 37 12
S25/S32/RT25/RT32 48 12 5.5 52 64 15 38 8

18
 CAM OPERATED
ROTARY SWITCHES

B 42

A2(Base) Drilling plan

B3(Front) Front / Base
3 to 5 B2(Front)
Panel gap

SqD

SQF
G N SQ A1(Base)
00
L R2 SQ B1(Front)

IP 55 protection from front Length L = No of Stages x S + W Mounting plate at front (F 42)

Quote B41 for door openable in both positions with door interlock

TYPE A1 A2 B1 B2 B3 D F G C N S W Max
S16/TP16/RT16 48 M5 48 15 4.5 60 64 3.5 45 22 12 54 8
S25/S32/RT25/RT32 48 M5 48 15 4.5 60 64 3.5 41 22 15 55 8
S40/S63/RT40/RT63 81 M6 68 18 5.5 101 88 5 46 26 21 66 6
S80/S100/S125 81 M6 68 18 5.5 101 88 5 46 26 26 72 6
S200 81 M6 68 18 5.5 101 88 5 46 26 32 72 6
S400 81 M6 68 18 5.5 101 88 5 46 34 64 72 3

B 34

Drilling plan
3 to 5 Front / Base
A2(Base) B2(Cover)
S Panel gap
B3(Cover)
0
sq D

O O
F N
0 0 F

R2

N
G A1(Base)
F
B1(Cover)
L C H
IP 55 protection from front
Length L = No of Stages x S + W

Quote B32 for rectangular padlock coupled with door interlock ( Reference style B30 )

TYPE A1 A2 B1 B2 B3 D F G C N S W Max
S16/TP16/RT16 48 M5 36 15 4.5 60 65 3.5 45 24.5 12 54 6
S25/S32/RT25/RT32 48 M5 36 15 4.5 60 65 3.5 41 24.5 15 55 6
S40/S63/RT40/RT63 68 M6 68 18 5.5 84 95 5 46 33.5 21 66 6
S80/S100/S125 81 M6 68 18 5.5 101 95 5 46 33.5 26 72 6
S200 81 M6 68 18 5.5 101 95 5 46 33.5 32 72 6
S400 81 M6 68 18 5.5 101 95 5 46 33.5 64 72 3

Notes :

19
 CAM OPERATED
ROTARY SWITCHES

KNOBS AND HANDLES

TD - TEAR DROP FL - FLAG KNOB
A A
B

B
C

C
D D

CODE - TD A B C D CODE - FL A B C D
S6/S10/TP6/TP10 27 41 25 21 S6/S10/TP6/TP10 16.5 22 13.75 18 KNOBS / HANDLE
COLOURS
S16/TP16/RT16 27 41 25 21 S16/TP16/RT16 27 39 24 24
S25/S32/RT25/RT32 36 52 31 25 S25/S32/RT25/RT32 36 50 27 25 RED
S40 & ABOVE 50 70 42 33 S40 & ABOVE 50 68 42.5 32 BLACK

PG - PISTOL GRIP HANDLE BG - BALL GRIP HANDLE LV - LEVER HANDLE

36 36 50
10 2

114
87
71

67

90
40 36 55

CODE - PG CODE - BG CODE - LV

S16/TP16/RT16 S16/TP16/RT16 S80/S100/S125
S25/S32/RT25/RT32 S25/S32/RT25/RT32 S200/S400
S40/S63 S40/S63 -

ACCESSORIES
EXTENDED TERMINALS

S16 S25 8.5 S63 2 R8

1.5 7.5 \U+22058.5
3.2

Ø3.8 Ø6.5 M4
5

8
13 5

.
27
13.80

8.5 8.5 9.5 16

Always mounted on switch supplied

as optional for S40 and S63
PUSH ON TERMINALS S16

S80, S100, S125 S400 \U+22053.4

3 \U+220510.5 22
3 53
6.3

\U+220510.5

8.2
37

26

40

45 °

0.8

Always mounted on switch Always mounted on switch Mating terminal socket Code No : 1653

20
 CAM OPERATED
ROTARY SWITCHES

ACCESSORIES (Continued)

STANDARD FRAME BIGGER

STYLE SIZE STYLE

SQ20
SHROUDING COVERS S6/S10 ---
TP6/TP10
RECTANGULAR
SQ32
H

S16

SQ36
S6/S10
TP16
TP6/TP10
L
RT16
SQ48
D

S16

SQ48
S25/S32
TP16
RT25/RT32
RT16
TYPE L D H No.of
Stages SQ64

175 115 100 3

S63
210 200 90 3

SQ68
175 110 115 3 S25/S32
S200 S40 & above
210 200 100 3 RT25/RT32

SQ88
S-SERIES
SQ68

--- S40 & above

SQ104

SPECIAL FRONT PLATES

48 x 60
H

48

D
S16
TP16 ---
SQ 36

60

RT16
H
TYPE øD
2 STAGE 3 STAGE 64 x 80
+02
S25/S32 65 48 63 64
+02
S63 89 118 182 S16
S25/S32
TP16
* Other special size mounting plates at Front or RT25/RT32
80
SQ48

RT16
Rear can be supplied against requirement.

Colour Combination

CODE - YR CODE - GB CODE - BB CODE - AB

Yellow Front Plate Grey Front Plate Black Front Plate Alluminium Foil Front Plate
Red Knob Black Knob Black Knob with Black Knob

21
 CAM OPERATED
ROTARY SWITCHES

CUSTOMISED PROGRAMME
Front plate Programme Number

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

Switching angle

Switching positions

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

Locked position Contact closed Contact closed without Spring return

X X
interruption

1 2 3 With Without
Mounting
Switch Type Stop
Form
4 Type Colour 7
Front plate Optional extras

5
Marking
6 Type Colour Customer Date
Handle

CUSTOMER CODE No.

22
 CAM OPERATED
ROTARY SWITCHES

Front plate Programme Number 73037 Customised Programme Formation

P The switch design and construction gives flexibility for making customised
programmes within a very short period. Basically an engineer trying to specify
OFF 1 3 5 the customised programme should concentrate on the following points.
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
(a) Number of operating positions of switch handle
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36
(b) Total number of contacts required
2 4 6
(c) Contact closing sequence of all the contacts required in various
Switching angle 60 0
positions of handle. Please note :
Switch positions
OFF 1 1) Each position should be identified and script plate marking required
2
3 in those postions should be mentioned .
4
TUBE 5 2) The standard latching angle (angle between positions)/
6
7 switching angles are 600, 900, 450 and 300. Spring return are also
8
TUBE & FAN 9 possible for 450 and 900 switching angle.
10
11
12
(d) Total number of contacts can be decided based on the actual need. You
FAN 13 may arrange the contacts to your convenience and number them as 1/2,
14
15 3/4, 5/6...etc. While making the switch, we may rearrange the contacts
FAN & LAMP
16
17
to use solid jumpers so as to avoid loose wire jumpers
18
19 (e) Fill up the Programme sheet by marking ‘X’ at places where contacts
20
NIGHT LAMP 21 have to Close ( NC ).
22
23
24
Also specify the ampere rating, mounting style, switching angle,
Locked positions Contact Closed without script plate markings, terminal marking, lockable position (If any)
X X Contact Closed interruption
Spring return

1
Switch Type S 16
2 Mounting
B03
3
Stop
With Without For example refer the sample customised programme sheet of a
Form X
4
Front plate
Type Colour 7 bedroom switch having 3 contacts controlling a tube, fan and night lamp
50 Yellow Optional extras
5
Marking Note:-The above construction carries a five digit number starting with
6
Handle
Type
Tear drop
Colour
Red
Customer Date (7xxxx) alloted by us .This number alone is sufficient for future
CUSTOMER CODE No.
correspondance and further ordering.

ORDERING CODE
Programme Code l Type l Ampere l Mounting l Knob l Color

Example : 6 1 1 9 7 S E B 0 3 T D Y R

Programme Selection Type Selection Ampere Selection

Programmes Prog Type Code Possible Amps Ampere Code Ampere Code
Code S-Series S 6 to 400 Amps 6 A 100 K
Isolators Pg 4 Touch Proof T 6 to 16 Amps 10 B 125 L
Changeovers with OFF Pg 5 Rear Access Termination R 16 to 63 Amps 16 C 160 M
Changeovers without OFF Pg 6 DC Switches D 16 to 500 Amps 20 D 200 N
Multistep with OFF Pg 7 Phase Selector only for 25 E 250 O
Multistep without OFF Pg 8 1 Pole 3 Way with OFF P 25 to 63 Amps 32 F 300 P
Instrumentation Switches Pg 9 40 G 400 Q
Motor Control Switches Pg 11 50 H 500 R
Mounting Selection
Gang Switches Pg 13 63 I 600 S
Control Switches Pg 14 For Mounting Styles Refer Table on Page 14 80 J 800 T

Knobs and Handles Selection Color Combination Selection

CODE - TD CODE - FL CODE - PG CODE - YR CODE - GB

Tear Drop Flag Knob Pistol Grip Yellow Front Plate Grey Front Plate
Red Knob Black Knob

CODE - BG CODE - LV CODE - BB CODE - AB

Ball Grip Lever Handle Black Front Plate Aluminium Foil Front Plate
Black Knob with Black Knob

23
 CAM OPERATED
ROTARY SWITCHES

BREAKER CONTROL SWITCHES

Breaker Control Switches are specially designed for remote tripping and closing of circuit NEUTRAL
breakers. These switches ensure antipumping operation of ACB and also eliminate the
possibility of coil burnout with two consecutive closing operations. T C
R L
I O
Construction : P S
E
These switches are constructed using state of the art mechanisms and materials. The contacts
are of AgCdO, double butt type, ensuring long life and better breaking capacity. Insulation is
achieved with glass filled polyamide, the construction of the switch allows flexibility in
programmes with different switching combinations, sequence locking, lost motion device
(LMD), spring return mechanism, mounting options etc.
Operations :
Breaker Control Switches have 3 operating positions i.e., trip, neutral and close in either
Stayput or Spring Return mechanism. In the Spring Return version the handle always returns to
“Neutral”and does not stay in any other position. The contact block is divided into two, main
contacts and LMD contacts. Main contacts operate whenever the handle is rotated, where as
the LMD contacts are activated only when the handle is operated to the other end. i.e. when
the switch handle is rotated from neutral to close position then the LMD contacts take the close
configuration and when the handle returns back to neutral, the LMD contacts remain as it is in
close configuration.
When the handle is rotated from neutral to trip position then the LMD contacts change to trip
configuration and when the handle returns to neutral the LMD contacts remain in trip
configuration. Thus the LMD mechanism enables the switch to have a memory feature of the
previous operation, which is very essential for Circuit Breaker applications.
Apart from these features, a sequence lock can also be provided which acts like a mechanical
interlock in the sequence of operations of the switch not permitting two consecutitve close
operations.

Technical Specifications
GENERAL
DESCRIPTION UNIT SG25 SG32
ENDURANCE :
V AC 690 690 Mechanical
Rated Operational Voltage Ue
V DC 250 250 100,000 operations at 300 cycles/hour
Resistance to Surge Voltage Uimp kV 6 6 Electrical
Rated Uninterrupted Current Ith A 32 40 10,000 operations at 120 cycles/hour
Rated Operational Current Ie Operational Temperature
Pilot Duty AC15 250 C to 550 C, frequency upto 5 kHz
220-240V AC A 8 14
380-440V AC A 5 6
Short circuit protection
A 25 32
HRC fuse size
Rated short circuit kA 10 10
Terminal cross section
Rigid wire min mm2 1.5 2.5
max 4 6
Flexible wire min mm2 1 1.5
max 2.5 4
Terminal Screw M4 M4
Terminal Tightening Torque 1.2 Nm 1.2 Nm
CSA / UL RATINGS
Voltage Rating V 600 600
Ampere Rating A 20 30
VA Rating AC-720 VA DC-275 VA

DC 13 RATING
SG 25 SG 32
No of
Voltage Contacts Inductive L / R Amps Inductive L / R Amps
Resistive Resistive
in series Amps 10 20 40 Amps 10 20 40
m sec m sec m sec m sec m sec m sec
50V 1 20 20 15 6 25 25 18 8
2 - - 20 14 - - 25 18
3 - - - 20 - - - 25
125V 1 3 2.5 1.5 1.0 5 3 2 1.2
2 20 15 10 5 25 18 12 6
3 - 20 20 10 - 25 25 12
250V 1 1.0 0.5 0.3 0.2 1.2 0.6 0.4 0.3
2 5 2 1.0 0.5 6 2.5 1.2 0.6
3 20 10 4 1 25 12 5 1.2

24
 CAM OPERATED
ROTARY SWITCHES

Mounting Styles
seq.locking B03
&LMD Panel gap 3 to 5
13 LxW 17.50 MxW 65 SQ64 Ø5.5 Ø12
LMD Main 50
Contacts Contacts
NEUTRAL
C
T L
ØD R O
I S
P E

80
spring return SQ48
TYPE D W stayput 15
DRILLING PLAN
SG25 58 14
SG32 62 16
M No of Stages in Main Contacts L No of Stages in LMD Contacts

B90

seq.locking
&LMD Panel gap 3 to 5
13 LxW 17.50 MxW 55 SQ64 Ø12
Ø5.5
LMD Main 40
Contacts Contacts
NEUTRAL
C
T L
ØD

R O
I S
P E
75

spring return SQ48

TYPE D W stayput 15
R DRILLING PLAN
SG25 58 14
SG32 62 16 M No of Stages in Main Contacts L No of Stages in LMD Contacts

Breaker Control Ordering Code

1 2 3 4 5 6 7 8 9 10 P G B B
Example : 1 Q S L 1 1 E B 9 0 P G B B
25 Ampere spring return TNC with 1 set of main contact 1NO+1NC, 1 LMD contact in trip position and 1 LMD contact in close position with
sequential locking and barrell lock mounting.

Digit 1 Digit 2 Digit 3 Digit 4

No of Main Contacts in Sequence Latching LMD
Trip/Close position Locking Code Mechanism Code Contacts Code
Description Code If required Q Spring Return S If required L
1 NO + 1 NC 1 Not required O Stayput C Not required D
2 NO + 2 NC 2
3 NO + 3 NC 3
4 NO + 4 NC 4
5 NO + 5 NC 5
6 NO + 6 NC 6
7 NO + 7 NC 7
8 NO + 8 NC 8
9 NO + 9 NC 9

Digit 5 Digit 6 Digit 7 Digit 8, 9 and 10

No of LMD Contacts No of LMD Contacts Ampere Rating Code
in Trip position in Close position Mounting Code

Description Code Description Code 25 Ampere E Standard Front

1 Contact 1 1 Contact 1 32 Ampere F Mounting B 03
2 Contact 2 2 Contact 2 Barrel Lock with
Centre Key B 90
3 Contact 3 3 Contact 3
4 Contact 4 4 Contact 4
5 Contact 5 5 Contact 5
6 Contact 6 6 Contact 6
If not required 0 If not required 0

25
 CAM OPERATED
ROTARY SWITCHES

EXPLODED VIEWS
Cam Operated Rotary Switch

Ensure Mating Orientation

with Knob PANEL FIXING
NUT
2

B2
A4
A2
SWITCH
FRONT PLATE &
PANEL FIXING
SCREW

MOUNTING PLATE

SCRIPT PLATE
PANEL
THICKNESS
3 to 5mm

RING
FRONT PLATE

KNOB
RASTER PLATE

SCREW

Breaker Control Switch

Ensure Mating Orientation

CLAMPING BOLTS
with Knob

B2
A4
A2
SWITCH

MOUNTING PLATE
T
R
I
P
PANEL
THICKNESS
3 to 5mm

BARREL LOCK
ASSEMBLY

26
 CAM OPERATED
ROTARY SWITCHES

DC SWITCHES

Technical Specifications

RATED OPERATIONAL CURRENT le

DC
DESCRIPTION UNIT SWITCH TYPE
RATINGS
D 16 D 25 D 32 D 40 D 63
Rated on Interrupted Current (l th) A 20 32 40 50 80
DC 22A L/R 2m sec
Rated
Operational 110 V 250 V 460V
Voltage A 16 25 32 40 63
No of Series
1 2 4
Contacts

DC 23A L/R 7.5m sec

Rated
Operational 24 V 48 V 70 V 110 V 180 V 250 V
Voltage A 10 16 25 32 40
No of Series
Contacts 1 2 3 4 5 6

AC AC3 Rating 3 Phase 380-440V HP 7 10 14 20 25

RATINGS AC21 Rating A 16 25 32 40 63
Fuse Protection A 16 25 32 40 63
Short Circuit through fault current kA 5 10 10 20 20
Terminal [Rigid] min mm2 1.5 1.5 1.5 1.5 1.5
GENERAL Cross Section [Flex] max mm2 4 4 6 10 16
Tightening Torque Nm 0.8 1.2 1.2 2 2
Maximum Contact Stages 16 10 10 6 6

DESCRIPTION UNIT D 100 D 200 D 300 D 400 D 500

DUTY RATING - DC 22 A L/R 2m sec
Operational Voltage V DC 250 250 250 250 250
Voltage for AC Rating V AC 460 460 460 460 460
Operational Current A 100 200 300 400 500
Thermal Current (l th) A 125 250 375 500 625
Switching Angle Deg 90 90 90 90 90
Maximum Contact Stages 9 9 9 9 9

27
 CAM OPERATED
ROTARY SWITCHES

Construction and Features

D16 - D63
D series switches are designed for DC Switching applications. These switches are
Constructed using snap action mechanism which provides "Quick Make Quick
Break" of the contacts which is essential for DC switching. The contacts are of
AgCdO, double break, butt type, housed in a glass filled polyamide contact stage
and are operated through cams for higher electrical endurance and smooth
operation.
Suitable for 90 and 60 degree switching programmes and applicable for both
AC and DC Switching. Suitable switching programmes for Isolator, Changeover,
Multistep and Gang Switches etc. are offered.

3 to 5 ØB3 Drilling plan

S Panel gap

ØB2
SQF
ØD

L SQ B1

TYPE B1 B2 B3 D F S
D 16 48 12 5.5 50 64 12
D 25 / D 32 48 12 5.5 50 64 15
D 40 / D 63 68 15 5.5 70 64 21

STAGES 1 2 3 4 5 6 7 8 9 10 11 12
D 16 62 74 86 98 110 122 134 146 158 170 182 194
Length
D 25/32 65 80 95 110 125 140 155 170 185 200 215 230
L in mm
D 40/63 69 90 111 132 153 174 195 216 237 258 279 300

D100 - D500
170PCD 23
0.5
118

23 S 3.1

L 126.5

L
TYPE S
1 2 3 4 5 6 7 8
D100 - D500 22 72.5 94.5 116.5 138.5 160.5 182.5 204.5 226.5

28 Product development is a continous process. Hence data given in the catalogue is subject to change without intimation.
 CAM OPERATED
ROTARY SWITCHES

Notes :

29
Cam Switch with Lever Handle

A A
A
0
OFF 90

DC Cam Switch B R

M4 10
S
Enclosure Mounting ØD

With DIN Rail Mounting Clip S Series TP Series RT Series

L
 Earth Leakage Relay
www.itmikro.com

NX330A
Features
•• Numerical earth leakage relay

•• Incorporated positive safety feature into trip

contact

•• One programmable contact for flexibility

•• Detection of no connection to ZCT

•• Relay trip / alarm indicator

•• Real-time leakage current display

•• Leakage fault current recording

•• Remote reset function

•• Standard DIN 96x96mm panel mounting

•• Protected against nuisance tripping

Technical Data
AUXILIARY SUPPLY Programmable : Option 0 = Disable OUTPUT CONTACTS
Model NX330A-230A : 184~276 V AC contact Option 1 = All (Option 2 to 6) Rated voltage : 250 V AC
Model NX330A-110A : 94~127 V AC Option 2 = ZCT error Contact rating : 5 A (NO)
Rated frequency : 50Hz Option 3 = Leakage trip, 3 A (NC)
VA rating : 3VA typical test trip, Expected electrical life : 100,000 operations
re-close lockout at rated current
Option 4 = Re-close lockout Expected mechanical life: 5 x 106 operations
PERFORMANCE Option 5 = Pre-fault alarm,
Setting accuracy : -15% to +0% leakage trip,
Timing accuracy : ±5% test trip, INDICATORS
re-close lockout Pre-fault alarm : Red indicator
Option 6 = Re-close lockout, (Normal blink)
SETTING ZCT error Time delay : Red indicator
Sensitivity adjustment : 30mA, 50mA, (Fast blink)
0.10~1.00A RECORD Leakage trip : 7-segment display
(Step=50mA) Fault record : 3 latest tripped fault and red indicator
1.00~10.0A currents or “tSt” for Re-close lockout : 7-segment display
(Step=1.00A) manual test trip and red indicator
Storage : Non-volatile memory ZCT connection error : 7-segment display
Time delay adjustment : Instantaneous, and red indicator
0.1~3.0sec (Step=0.1s) Real-time leakage current: 7-segment display
INPUT
Number of shots : 0~30 (Step=1, 0=Disable Remote reset : N.O. dry contact
auto re-close function) ZERO-PHASE CURRENT TRANSFORMER
To operate with Mikro’s ZCT series of current
Dead time : 1~500sec (Step=1sec) OUTPUTS transformer
Persistent fault time : 0~500sec (Step=1sec, Trip safe contact : Activated when the relay
0=Disable function) is in normal power-up
NX 330A

condition with the ENVIRONMENTAL CONDITIONS

Reclaim time : 0~500min (Step=1min, measured leakage current Temperature : -10°C to 55°C
0=Disable function) less than 0.85 IΔn. Humidity : 5% to 95%,
Programmable contact: Activated according non-condensing
Lockout auto reset time : 0~200hour (Step=1Hr, to user setting
0=Disable function) MECHANICAL
Mounting : Panel mounting
Dimension (mm) : 96(w) x 96(h) x 90(d)
Enclosure protection : IP54 at the panel
Approximate weight : 0.6 kg (excluding ZCT)
Earth Leakage Relay

www.itmikro.com

Typical Application Diagram Case Dimensions

96 mm

NX330A

96 mm
Front

90 mm
70 mm

Side

91.0 ± 0.5 mm
Ordering Information

91.0 ± 0.5 mm
MODEL DESCRIPTION
NX330A-230A For 50Hz system, auxiliary voltage 184~276 V AC Panel Cutout
NX330A-110A For 50Hz system, auxiliary voltage 94~127 V AC
NX330A-230A6 For 60Hz system, auxiliary voltage 184~276 V AC
NX330A-110A6 For 60Hz system, auxiliary voltage 94~127 V AC
NX 330A
Modular DIN Rail Products
MCB
NB1 Miniature Circuit Breaker
1. General

1.1 Function
protection of circuits against short-circuit currents,
protection of circuits against overload currents,
switch,
isolation,
NB1 circuit-breakers are used in domestic installation,
as well as in commercial and industry electrical
distribution systems.

1.2 Selection
Technical data of the network at the point considered:
the earthing systems (TNS, TNC),
short-circuit current at the circuit-breaker installation point,
which must always be less than the breaking capacity of
this device,
Network normal voltage.
Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT
systems.
C curve (5-10In)
protection for resistive and inductive loads with low inrush
current.
D curve(10-14In)
protection for circuits which supply loads with high inrush
current at the circuit closing
(LV/LV transformers, breakdown lamps).

1.3 Approvals and certificates

Detailed information, please refer to Certificates Table
on the last page.

K
RTE
TE
IN

A A
DNV

014

Empower the World >> 02

 Modular DIN Rail Products
MCB
2. Technical data
2.1 Curves

IEC/EN 60898-1 AC type B curve IEC/EN 60898-1 AC type C curve IEC/EN 60898-1 AC type D curve
t(s) t(s) t(s)
10000 10000 10000
5000 5000 5000
1h 1h 1h
2000 2000 2000
1000 1000 1000
500 500 500
200 200 200
100 100 100
50 50 50
20 20 20
10 10 10
5 5 5
2 2 2
1 1 1
0.5 0.5 0.5
0.2 0.2 0.2
0.1 0.1 0.1

0.05 0.05 0.05

0.02 0.02 0.02
0.01 0.01 0.01
0.005 0.005 0.005
0.002 0.002 0.002
0.001 0.001 0.001
0.5 1 2 3 4 5 7 10 20 30 50 70 100 200 I/In 0.5 1 2 34 5 7 10 20 30 5070100 200 I/In 0.5 1 2 3 4 5 7 10 14 20 30 50 70 100 200 I/In

t(s) IEC/EN 60947-2 AC type 8-12 In IEC/EN 60947-2 AC type 9.6-14.4In

10000 t(s)
10000
5000
1h 5000
2000 1h
2000
1000
1000
500
500
200
200
100
100
50
50
20
20
10
10
5
2
1
0.5
0.2
0.1
0.05
0.05
0.02
0.02
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
1.05 2 3 45 8 12 20 30 50 70 100 200 I/In 0.5 1.05 1.3 2 3 4 5 7 9.6 14.4 20 30 50 70 100 200 I/In

t(s)
DC operation B curve
t(s)
DC operation C curve Let-through I 2t/A 2S I2 t
10000 10000 63A
10 5
5000 5000 50A
1h 1h 32A 40A
2000 2000 25A
5 20A
1000 1000 16A
500 500 10A
200 200
100 100 6A
50 50 10 4
20 20 4A
10 10 5 3A
5 5
2 2
1 1
0.5 0.5
2A
3
0.2 0.2 10
0.1 0.1
I/In 0.05 1A
0.05
0.02 0.02
0.01 0.01
0.005 0.005
0.002 0.002
2 3 4
0.001 0.001 10 5 10 5 10
0.5 1 2 3 4 5 7 10 14 20 30 50 70 100 200 I/In 0.5 1 2 3 4 5 7 10 15 20 30 50 70 100 200 I/In
Shor t-ci rcut cur rent ip/ A

03 >> Empower the World

Modular DIN Rail Products
MCB
2.2
Standard IEC/EN 60898-1 IEC/EN 60947-2 UL1077
1, 2, 3, 4, 6, 10, 13, 16, 1, 2, 3, 4, 6, 10, 13, 16, 20,
Rated current In A
20, 25, 32, 40, 50, 63 25, 32, 40, 50, 63
Poles 1P, 1P+N, 2P, 3P, 3P+N, 4P 1P, 2P, 3P, 4P 1P, 2P, 3P, 4P 1P, 2P
Rated voltage Ue V 230/400~240/415 277/480 110/125
Insulation voltage Ui V 500
Rated frequency 50/60Hz DC
Rated breaking capacity A 6000/10000 6000 5000 10000
Electrical Energy limiting class 3
features Rated impulse withstand voltage(1.2/50) Uimp V 4000
Dielectric test voltage at ind. Freq. for 1 min kV 2 1.890 2
Pollution degree 2
Rated current (A) Max power loss per pole (W)
1, 2, 3, 4, 6, 10 2
Power loss per pole
16, 20, 25, 32 3.5
40, 50, 63 5
Thermo-magnetic release characteristic B, C, D (8-12)In B, C, D (4-7)In, (7-15)In
Electrical life 4, 000
Mechanical life 20, 000
Contact position indicator Yes
Protection degree IP20
Mechanical
Reference temperature for setting
features ℃ 30
of thermal element
Ambient temperature (with
℃ -5...+40
daily average≤35℃)
Storage temperation ℃ -25...+70
Terminal connection type Cable/U-type busbar/Pin-type busbar
mm 2
25
Terminal size top/bottom for cable
AWG 18-4
mm2 10
Terminal size top/bottom for busbar
Installation AWG 18-8
N·m 2.5
Tightening torque
In-Ibs. 22
Mounting On DIN rail EN 60715 (35mm) by means of fast clip device
Connection From top and bottom
Auxiliary contact Yes
Combination Shunt release Yes
with
Under voltage release Yes
accessories
Alarm contant Yes

Empower the World >> 04

 Modular DIN Rail Products
MCB
2.3 Selectivity

In Power supply side: RT36-00 (fuse)

(A) 20 25 36 50 63 80 100 125 160

Is (kA)
≤2 1.2 4 ＞12 ＞12 ＞12 ＞12 ＞12 ＞12 ＞12
3 0.7 1.2 3.8 5.3 6 6 6 6 6
Load side: NB1-63, 4 0.6 0.9 2.5 3.8 6 6 6 6 6
6 0.5 0.8 1.9 2.5 4.5 5 6 6 6
NB1-63H
10 0.7 1.4 2.2 3.2 3.6 6 6 6
Curve B, C
16 1.2 1.8 2.6 3 5.6 6 6
20 1.5 2.2 2.5 4.6 6 6
25 1.3 2 2.2 4.1 5.5 6
32 1.7 1.9 3.8 4.5 6
40 1.7 3 4 5
50 1.5 2.6 3.5 4.5
63 2.4 3.3 4.5

In Power supply side: NM8-100S/H/R

(A) 16 20 25 32 40 50 63 80 100
Is (kA)
Load side: NB1-63, ≤10 0.19 0.19 0.3 0.4 0.5 0.5 0.5 0.63 0.8
16 0.3 0.4 0.5 0.5 0.5 0.63 0.8
NB1-63H
20 0.5 0.5 0.5 0.63 0.8
Curve B, C 0.8
25 0.5 0.5 0.63
32 0.5 0.63 0.8
40 0.63 0.8
50 0.8
63

2.4 Backup protection

In Power supply side: RT16 series

(A) 40 50 63 80 100 125 160

Is (kA)
1~6 40 40 40 40 40 40 40
Load side: NB1-63, 8~10 40 40 40 40 40 40 40
13 40 40 40 40 35 35 35
NB1-63H
16 40 40 40 40 30 30 30
Curve B, C
20 40 40 40 40 30 30 30
25 40 40 40 40 30 30 30
32 40 40 40 40 30 30 30
40 40 40 40 40 30 30 30
50 30 30 30 30 30 30 30
63 20 20 20 20 15 15 15

In Power supply side: NM8

(A) NM8-125S NM8-125H NM8-125R NM8-250S NM8-250H NM8-250R

Load side: NB1-63,
Is (kA)
NB1-63H
1~6 15 18 18 15 15 15
Curve B, C
10~20 12 15 15 12 12 12
32~40 12 15 15 12 12 12
50~60 12 15 15 12 12 12

05 >> Empower the World

Modular DIN Rail Products
MCB
2.5 Temperature derating
The maximum permissible current in a circuit breaker depends on the ambient temperature where the circuit breaker is
placed. Ambient temperature is the temperature inside the enclosure or switchboard in which the circuit breakers are installed.
The reference temperature is 30℃

Ambient temperature
-35℃ -30℃ -20℃ -10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 60℃ 70℃
Rated current(A)
1 1.30 1.26 1.23 1.19 1.15 1.11 1.05 1.00 0.96 0.93 0.88 0.83
2 2.60 2.52 2.46 2.38 2.28 2.20 2.08 2.00 1.92 1.86 1.76 1.66
3 3.90 3.78 3.69 3.57 3.42 3.30 3.12 3.00 2.88 2.79 2.64 2.49
4 5.20 5.04 4.92 4.76 4.56 4.40 4.16 4.00 3.84 3.76 3.52 3.32
6 7.80 7.56 7.38 7.14 6.84 6.60 6.24 6.00 5.76 5.64 5.28 4.98
10 13.20 12.70 12.50 12.00 11.50 11.10 10.60 10.00 9.60 9.30 8.90 8.40
16 21.12 20.48 20.00 19.20 18.40 17.76 16.96 16.00 15.36 14.88 14.24 13.44
20 26.40 25.60 25.00 24.00 23.00 22.20 21.20 20.00 19.20 18.60 17.80 16.8
25 33.00 32.00 31.25 30.00 28.75 27.75 26.50 25.00 24.00 23.25 22.25 21.00
32 42.56 41.28 40.00 38.72 37.12 35.52 33.92 32.00 30.72 29.76 28.16 26.88
40 53.20 51.20 50.00 48.00 46.40 44.80 42.40 40.00 38.40 37.20 35.60 33.6
50 67.00 65.50 63.00 60.50 58.00 56.00 53.00 50.00 48.00 46.50 44.00 41.50

63 83.79 81.90 80.01 76.86 73.71 70.56 66.78 63.00 60.48 58.90 55.44 52.29

When several simultaneously operating circuit breakers are mounted side by side in a small enclosure,
the temperature rise inside the enclosure causes a reduction in current rating.
You must then assign the rating (already derated if necessary according to ambient temperatuer) a downrating factor of 0.8.

3. Overall and mounting dimensions (mm)

45±0.31

34.5±0.5

86 -1.4
0

0 0 0 0
49.5±0.31 18 -0.43 36 -0.62 54 -1.2 72 -1.2
0
78 -1.2
1P 1P+N, 2P 3P 3P+N, 4P

Empower the World >> 06

 S.A.G
CONCRETE
EARTH CHAMBER
 EARTH CHAMBER EARTH CHAMBER EARTH CHAMBER COVER WIDTH
ITEM NO. COVER HEIGHT COVER WEIGHT HOOK HEIGHT CABLE GROOVE
WIDTH HEIGHT WEIGHT
Width: 80mm
SAG EC 4 600mm 400mm 110kg 470mm 70mm 30kg 100mm Height: 40mm

SAG EC4
600

540

440

SAG S/B
A
600
A SAG S/B
540

DANGER 470

DANGER
PERSPECTIVE VIEW

PLAN PLAN (COVER)

600
540
470
600
50
70

470
6 440
10 50
400

400
5
330

80
40

6
400
SIDE ELEVATION (COVER) 400

SECTION A - A SIDE ELEVATION

*Unit of dimension : mm

Application

(COMPANY NO. : 334109-H)

Address: Lot 66, Kawasan Perindustrian Semambu,
25350 Kuantan Pahang Darul Makmur. West Malaysia
Tel: +609 5665451 Fax: +609 5665452
E-mail: sales@sag.com.my / jay@sag.com.my
Website: www.sag.com.my
SPECIFICATION
Precast heavy duty concrete c/w cover.
Earth bars are not included (order separately).
Confirms to BS 1881:Part 116:1983 & designed to withstand compressive strength of 8.5MN/M. 2
Unless otherwise stated, all dimension are in milimeters (mm).

EARTH CHAMBER-SAG EC1 Specification

EARTH CHAMBER EARTH CHAMBER EARTH CHAMBER
ITEM NO. COVER WIDTH COVER HEIGHT COVER WEIGHT HOOK HEIGHT CABLE GROOVE
WIDTH HEIGHT WEIGHT
Width: 70mm
SAG EC 1 345mm 210mm 22.5kg 245mm 70mm 8.5kg 100mm Height: 40mm

SAG EC1
345mm
345mm
324mm
246mm 345mm
123mm

R
SAG EC1
75mm

210mm
6mm
210mm

A A
345mm

135mm

DANGER 70mm

40mm

240mm
240mm 40mm

PLAN SECTION A - A SIDE ELEVATION

EARTH CHAMBER-SAG EC2 Specification

EARTH CHAMBER EARTH CHAMBER EARTH CHAMBER
ITEM NO. COVER WIDTH COVER HEIGHT COVER WEIGHT HOOK HEIGHT CABLE GROOVE
WIDTH HEIGHT WEIGHT
Width: 65mm
SAG EC 2 280mm 190mm 14.5kg 185mm 63mm 3.5kg 100mm Height: 45mm

SAG EC2
280mm
300mm
280mm
300mm
190mm
95mm
R
SAG EC2
65mm

A A
190mm

6mm
190mm

DANGER
125mm

65mm
45mm

240mm
185mm
240mm 40mm

PLAN
SECTION A - A SIDE ELEVATION

HOOK
30mm

100mm

30mm

HOOK
EARTH CHAMBER-SAG EC3 Specification
EARTH CHAMBER EARTH CHAMBER EARTH CHAMBER
ITEM NO. COVER WIDTH COVER HEIGHT COVER WEIGHT HOOK HEIGHT CABLE GROOVE
WIDTH HEIGHT WEIGHT
Width: 70mm
SAG EC 3 375mm 190mm 20kg 275mm 70mm 9.5kg 100mm Height: 40mm

SAG EC3
375mm

375mm 375mm
327mm 375mm
355mm 284mm
142mm

INSPECTION R

75mm
SAG EC3
CHAMBER

190mm
355mm
248mm

6m

190mm
A A

115mm
70mm
COPPER
DANGER

40mm
CLAMP

270mm
COPPER TAPE FROM EARTH 270mm
TERMINAL SIDE ELEVATION
275mm SECTION A - A
COPPER
ROD PLAN

EARTH CHAMBER EARTH CHAMBER EARTH CHAMBER

ITEM NO. COVER WIDTH COVER HEIGHT COVER WEIGHT HOOK HEIGHT CABLE GROOVE
WIDTH HEIGHT WEIGHT
Width: 70mm
SAG EC 5 360mm 250mm 25kg 290mm 70mm 10kg 110mm Height: 40mm

SAG EC5
360mm

SAG EC5
50mm

A A

DANGER

PERSPECTIVE PLAN ( COVER ) PLAN

360mm HOOK
355mm 30mm
300mm
250mm

110mm
80mm
40mm

250mm

240mm
280mm
70mm 35mm

SIDE ELEVATION

25mm 175mm 30mm

265mm

HOOK
SECTION A - A
sales@taipoly.com.my
 PVC Insulated, PVC Sheathed Armoured Cable
– AL/PVC/SWA/PVC
6 4 2
5 3 1 1. AL Conductor
2. PVC Insulation
3. Filler
4. Bedding
5. Steel Wire Armoured
6. PVC Outer Sheath

APPLICATION

PVC insulated cable with steel wire armour (SWA) suitable for use in power networks,
underground, indoor and outdoor applications and also in cable ducting.

STANDARDS

Design Specification MS 2103, BS 6346

Conductor IEC 60228

CABLE CONSTRUCTION

Conductor Plain Aluminium Conductor, Class 2, Stranded Circular or Compacted

Insulation Polyvinyl Chloride (PVC) compound, PVC/A
Two Cores Red and Black
Core Identification Three Cores Red, Yellow and Blue
Four Cores Red, Yellow, Blue and Black
Stranded together and the interstices may be
filled with the sheathing compound or textile.
Assembly 2, 3 or 4 Cores
A non-hygroscopic binder tape may be applied
over the laid-up cores.
Bedding Polyvinyl Chloride (PVC) compound, PVC/ST-1
Bedding Colour Black
Armour Galvanised Steel Wire Armoured (SWA)
Outer Sheath Polyvinyl Chloride (PVC) compound, PVC/ST-1
Outer Sheath Colour Black

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 PVC Insulated, PVC Sheathed Armoured Cable
– AL/PVC/SWA/PVC
ELECTRICAL CHARACTERISTICS

Operating Voltage, Uo/U 600/1000 V Test Voltage 3.5kV for 5 minutes

Operating Temperature -15°C to 70°C Max Conductor 70°C

Temperature

AL/PVC/SWA/PVC - 4 Core
Nominal Number / Thickness of Thickness of Approx. Approx. Cable
Area Wire Diameter Insulation Sheath Overall Diameter Weight
(mm2) (No./mm) (mm) (mm) (mm) (kg/km)

16 7/1.70 1.00 1.80 25.50 1300

25 7/2.14 1.20 1.80 29.20 1660

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 PVC Insulated, PVC Sheathed Armoured Cable
– AL/PVC/SWA/PVC
Electrical Characteristic – AL/PVC/SWA/PVC Steel Wire Armoured Cables
Table B1.1: Current Carrying Capacity

Reference Method E (In Free Air Reference Method D (Direct In

Reference Method C
or On A Perforated Cable Tray, Ground or In Ducting In Ground,
(Clipped Direct)
Horizontal or Vertical) In or Around Buildings)
Conductor
Cross-Sectional Area
One 2-Core Cable, One 3 or 4-Core One 2-Core Cable, One 3 or 4-Core One 2-Core Cable, One 3 or 4-Core
(mm2)
Single-Phase Cable, Single-Phase Cable, Single Phase Cable,
AC or DC Three-Phase AC AC or DC Three-Phase AC AC or DC Three-Phase AC
(Amp) (Amp) (Amp) (Amp) (Amp) (Amp)

16 68 58 71 61 - -

25 89 76 94 80 77 64

35 109 94 115 99 93 77

50 131 113 139 119 109 91

70 165 143 175 151 135 112

95 199 174 211 186 159 132

120 - 202 - 216 - 150

150 - 232 - 250 - 169

185 - 265 - 287 - 190

240 - 312 - 342 - 218

300 - 360 - 399 - 247

Ambient Air Temp 30°C

Ambient Ground Temp 20°C
Conductor Operating Temp 70°C
Soil Thermal Resistivity (cable buried in ground): 2.5 K.m/W

Note: The above table is in accordance with 18th Edition of IEE Wiring Regulations.

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 PVC Insulated, PVC Sheathed Armoured Cable
– AL/PVC/SWA/PVC
Table B1.2: Voltage Drop

Conductor
2-Core Cable, DC 2-Core Cable, Single-Phase AC 3, 4-Core Cable, Three-Phase AC
Cross-Sectional
(mV/A/m) (mV/A/m) (mV/A/m)
Area (mm2)

16 4.5 4.5 3.9

r x z r x z

25 2.900 2.900 0.175 2.9 2.500 0.150 2.500

35 2.100 2.100 0.170 2.10 1.800 0.150 1.800

50 1.550 1.550 0.170 1.55 1.350 0.145 1.350

70 1.050 1.050 0.165 1.05 0.900 0.140 0.920

95 0.770 0.770 0.160 0.79 0.670 0.140 0.680

120 - - - - 0.530 0.135 0.550

150 - - - - 0.420 0.135 0.440

185 - - - - 0.340 0.135 0.370

240 - - - - 0.260 0.130 0.300

300 - - - - 0.210 0.130 0.250

Ambient Air Temp 30°C

Ambient Ground Temp 20°C
Conductor Operating Temp 70°C
Soil Thermal Resistivity (cable buried in ground): 2.5 K.m/W

Note:
1. Correction factors for ambient temperature and group installation, please refer Derating Factor section.
2. r = Resistive Component, x = Reactive Component, z = Impedance Value
The above table is in accordance with the 18th Edition of IEE Wiring Regulations.
3. For cables having conductors of 16mm2 or less cross - sectional area their inductances can be ignored and (mV/A/m)r values
only are tabulated. For cables having conductors greater than 16mm2, cross - sectional area the impedance values are given
as (mV/A/m)z, together with the resistive component (mV/A/m)r and the reactive component (mV/A/m)x.
The above paragraph is extracted from Appendix 4 of the 18th Edition of IEE Wiring Regulations.

Utama Cables has taken reasonable measures to ensure that the information and data represented in this catalogue is accurate and current. However, the
manufacturer reserves the right to modify specification of any of the products at their discretion and without notice. The manufacturer can accept no
responsibility as to the sustainability of any product for a particular use, or for any errors or omissions, unintentional or otherwise.

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