L&T Electrical & Automation, is India's largest manufacturer of low voltage

switchgear, with the scale, sophistication and range to meet global

benchmarks. With over seven decades of experience in this field, the
Company today enjoys a leadership position in the Indian market with
a growing international presence.

It offers a complete range of products including powergear, controlgear,

industrial automation, building electrical & automation, reactive power
management, energy meters, and protective relays.

These products conform to Indian and International Standards.

 Contents

DZ6/DZ7 4
Moulded Case Circuit Breakers

20

CZ 33
Switch Disconnector

AU Series 47
Surge Protection Devices

Exora MCBs 50
Miniature Circuit Breaker

BBT 52
Busbar Trunking System

EM101+, ER300 P 57
Tariff meter

Two Port ABT Meter - ER300P 59

Three Phase HTCT ABT 61

Multi-Port Meter ER300P
WL 4415 63
Bi-directional Multifunction Meter

MRP11 66
Reverse Relay
 DZ6/DZ7 Moulded Case Circuit Breakers
User Centric Innovation
The DZ range of Moulded Case Circuit Breakers (MCCB) is a culmination of innovation.
Designed to meet the requirements of today’s evolving electrical systems in modern installations, the range
features significantly higher fault breaking capacities.
Considering the changing expectations of customers and a need for economical and reliable solution, we
introduce DZ6-400 & DZ7-800 MCCB with operational voltages Ue upto 800V a.c.

Key Feature
• Rated currents: 125A*, 160A*, 200A, 250A, 320A, • All MCCB's are Ambient temperature compensated
400A, 500A, 630A, 800A • 6 cavities in the MCCB for variety of accessories
• 3P/4P, 1250V AC Ui rated insulation voltage - Auxiliary contacts- 3 nos
• Double break high breaking capacity contact system - Trip Alarm Contact-1 nos
- Under voltage release-2 nos or shunt release -2 nos
• Double insulation
• Conforms to IS 60947-2, IEC 60947-2 and
• Positive isolation EN 60947-2
• Thermal Magnetic & Microprocessor Release variants • RoHS compliant
• High Electrical & Mechnical operations

Breaking capacity matrix at 800Va.c.

Variant / Frame Size DZ6 - 125-400A DZ7 - 500-800A

Icu 25kA -
W
Ics 20KA -
Icu 36kA
Y
Ics 30kA
Icu 50kA
Z
Ics 40kA 50kA

4
Protection Releases
• Wide range of protection setting
• Provision for release testing
• Thermal Memory with option of defeat
• Ambient Temperature Compensation :
Solar applications are mainly outdoor installations and hence the ambient temperature has direct impact on
tripping characteristics of MCCB according to the time of the day, season or location. For example, ambient
temperature is very low in some areas of Jammu & Kashmir where a conventional MCCB will take higher time
to trip, where as ambient temperature is very high in desert areas of Rajasthan where a conventional MCCB
will take lesser time to trip.
In order to cater to this variation, all - DZ MCCBs are ambient temperature compensated, which means the trip
ping characteristics will remain constant irrespective of ambient temperature up to 55°C.

Thermal Magnetic iTM-AA L S

Microprocessor iTRP1 L S / I N
iTRP3 L S / I N G + Fault indication through dedicated LED

Other Accessories
• Extended Rotary handle & Direct Rotary handle
• Spreaders

Accessories

Extended ROM Under Voltage Release Shunt Release

Auxiliary (1 C/O) | Trip alarm comtt (1 C/O) Direct ROM Spreader

Termination Types

Spreader

5
Technical Specification

Frame Size Unit DZ6 DZ7

Current Range 125* | 160 *| 200 | 250 | 320 | 400 500 | 630 | 800
Rated Operational
Ue Va.c. 800 800 800 800 800 800 800
Voltage
Version W Y Z Y Z Y Z
Rated Short Circuit
Icu kA 25 36 50 36 50 36 50
Breaking Capacity
Rated Short Circuit
Ics kA 20 30 40 30 50 30 50
Breaking Capacity
Rated Short Circuit
kA 52.5 75.6 105 75.6 105 75.6 105
Making Capacity
Impulse Withstand
Uimp kV 8
Voltage
Rated Insulation
Ui V a.c. 1250
Voltage
Mechanical Life 20000
Electrical Life 4000 2500 2500 2500 2000
Utilization Category A
Operating Frequency Hz 50 / 60
Pollution Degree III
Poles 3P / 4P
Type of Release TM/MP
TM - Thermal Magnetic | MP - Microprocessor * - MP

Release Specification

Frame Size DZ6 DZ7

Current Range In 125* | 160 *| 200 | 250 | 320 | 400 500 | 630 | 800
iTM - AA Thermal Magnetic Release Specification
OverLoad Current Setting Ir = x In 0.67 to 1 x In 0.67 to 1 x In
Short Circuit Current Setting Isd = x Ir 6 to 12 x In 6 to 12 x In
iTRP - 1 Microprocessor Release Specification
Current Setting
Ir = x In 0.25 to 1 x In 0.25 to 1 x In
(in step of 0.05)
OverLoad 10s at 6Ir, 3s at 6Ir , 10s at 7.2 Ir, 10s at 6Ir, 3s at 6Ir , 10s at 7.2
Time delay (Inverse) Tr
(Phase) 3s at 7.2Ir Ir, 3s at 7.2Ir
Protection Mode ON/OFF ON/OFF
Thermal Memory ON/OFF ON/OFF
Current Setting Ineutral = x Ir OFF / 1.0 x Ir OFF / 1.0 x Ir
"OverLoad
(Neutral)" Time delay (Inverse) Tr As per Overload Curve Setting As per Overload Curve Setting
Protection Mode ON/OFF ON/OFF
Current Setting 1.5 to 12 1.5 to 10 1.5 to 8
Isd = x Ir 1.5 to 12 x Ir
(in step of 0.5) x Ir x Ir x Ir
Short Circuit
Time delay tsd As per I2t curve /150ms As per I2t curve /150ms
I2t ON/OFF ON/OFF
Current Setting 1.5 to 12 1.5 to 10 1.5 to 8
Instantaneous Ii = x In 1.5 to 12 x In
(in step of 0.5) x In x In x In

6
Technical Specification

iTRP-3 Microprocessor Release Specification

Current Setting
Ir = x In 0.20 to 1 x In 0.20 to 1 x In
(in step of 0.05)

OverLoad Time delay (Inverse) Tr 10s at 6Ir 10s at 6Ir

(Phase)
Protection Mode ON/OFF ON/OFF

Thermal Memory ON/OFF ON/OFF

Current Setting Ineutral = x Ir OFF / 0.5/ 1.0/ 2.0 x Ir OFF / 0.5/ 1.0/ 2.0 x Ir
“OverLoad
Time delay (Inverse) Tr As per Overload Curve Setting As per Overload Curve Setting
(Neutral)”
Protection Mode ON/OFF ON/OFF

Current Setting 1.5 to 10 1.5 to 10 1.5 to 8

Isd = x Ir 1.5 to 10 x Ir
(in step of 0.5) x Ir x Ir x Ir

Short Circuit Time delay tsd As per I2t curve /100ms/200ms As per I2t curve /100ms/200ms

I2t ON/OFF ON/OFF

Protection Mode ON/OFF ON/OFF

Current Setting 6 & 10 6 & 10 6&8

Ii = x In 6 & 10 x In
(in step of 0.5) x In x In x in
Instantaneous
Protection Mode ON/OFF ON/OFF

Current Setting Ig = x In 0.2, 0.4, 0.5, 0.7 x In 0.2, 0.4, 0.5, 0.7 x In

Earth Fault Time delay Tg 100ms/200ms 100ms/200ms

Protection Mode ON/OFF ON/OFF

* 125A & 160A available only in microprocessor based release

* iTRP3 range starts from 200A

Altitude Correction Factors

Altitude does not affect circuit breaker characteristics up to 2000m. Above this altitude, it is necessary to take
into account the decrease in the dielectric strength and cooling capacity of air. Altitude reduces Rated Impulse
Withstand and Insulation Voltage too.

Rated Continuous
Altitude (m) Rated Voltage (V)
Current (In)

2000 & below 1.00 1.00

2500 0.99 0.95

4000 0.95 0.80

7
Tripping Characteristics

Current-Limiting Curve for DZ6-Y (125A to 400A) @800V a.c.

Energy-Limiting Curve for DZ6-Y (125A to 400A) @800V a.c.

8
Tripping Characteristics

Current-Limiting Curve for DZ6-Z (125A to 400A) @800V a.c.

Energy-Limiting Curve for DZ6-Z (125A to 400A) @800V a.c.

9
Tripping Characteristics

Current-Limiting Curve for DZ7-Y (500A to 800A) @800V a.c.

Energy-Limiting Curve for DZ7-Y (500A to 800A) @800V a.c.

10
Tripping Characteristics

Current-Limiting Curve for DZ7-Z (500A to 800A) @800V a.c.

Energy-Limiting Curve for DZ7-Z (500A to 800A) @800V a.c.

11
Power Loss Curves for MCCB

DZ6 - 125A to 400A iTM - POWER/WATT LOSSES

DZ6 - 125A to 400A iTRP - POWER/WATT LOSSES

12
Power Loss Curves for MCCB

DZ7 - 630A, 800A iTRP - POWER/WATT LOSSES

DZ7-500A iTRP - POWER/WATT LOSSES

13
 DZ6

Overall Dimensions (mm)

Overall Dimensions with Spreader Links (mm)

14
DZ7

Overall Dimensions (mm)

Overall Dimensions with Spreader Links (mm)

15
 DZ6

Mounting Dimensions (mm)

Panel Cutout (mm)

16
DZ7

Mounting Dimensions (mm)

Panel Cutout (mm)

17
 DZ6

Product Use Guidelines

For Door Flush Mounting

18
DZ7

Product Use Guidelines

For Door Flush Mounting

19
800V AC Rated Voltage Applications:
Specially designed OMEGA ACB range offers a solution for electrical applications with system voltages of
800Va.c. This range of ACBs maintain the same dimension and accessories as the standard 690V a.c. range.

Key Feature
• Range: 1000 to 5000A, 800V a.c., 3P/4P • Modular & snap-fit accessories such as UVR, SR &
• Variants: Manually & Electrically operated, CR modules, redefi ne the modularity on a time
Fixed & Draw-out scale of 5 mins.

• High short-time Fault withstanding capacity, • Unique breaker front-facia architecture displays the
upto Icu = Ics = Icw (1 sec) = 65kA electrical accessories mounted on the ACB

• Conforms to IS 60947-2, IEC 60947-2 and • Ease of on-site convertibility from Manual to
EN 60947-2 Electrical & Fixed to Draw-out version

• RoHS compliant • Best in class (40mm) Termination overlap with

Bus bars.

MTX 1.0 L S I
MTX 1.0G L S I N G
MTX 1.5G L S I N G + Display + Current Metering
Microprocessor
+ fault history
MTX 3.5 + L S I N G + Display + Current metering
communication module + Inbuilt Communication

20
Accessories

External Neutral CTs Shunt Release Under Voltage Release + Delay Module

Electrical charging device Auxiliary contact block (4 NO+4 NC) Closing Release

Micro switches Castell lock Door Interlock

Release Type
• Wide range of protection setting

• Provision for release testing

• Thermal Memory with option of defeat

• Query button for last trip information details such as cause of tripping, date and time stamping of tripping

Matrix Release Features:

• Overload, Short-circuit & Instantaneous protection • Local fault annunciation through LED indication &
with adjustable current & time-delay settings pre-trip alarm

• Inbuilt Earth-Fault & neutral protection in MTX1G • Front accessible test port
& MTX1.5G
• Query button for last trip record
• Switchable thermal memory for cable protection on
repetitive overloads • Inbuilt rating-plug through DIP switches

• I2t ON curve for Short-circuit & Earth-fault protection • Test button to check the health of protection release

• Current Metering in MTX 1.5G through 3-line • Self-powered protection

O-LED display

21
Technical Specification

Frame 1 2 3

Rated Uninterrupted Current (In) (A) at 500 C 1000-2000 2000-4000* 3200-5000

Version NO8 S08

Rated Operational Voltage at

Ue 800V a.c.
50/60 Hz.

Rated Insulation Voltage at

Ui 1250V a.c.
50/60 Hz.

Rated Impulse withstand

Uimp 12kV (Main circuit) & 4kV (Auxiliary circuit)
Voltage

Suitability for Isolation Yes

Degree of Protection on Breaker front IP53 Standard, IP54 Optional

Degree of Impact Protection on Breaker front IK08 Standard, IK10 Optional

Pollution Degree Suitability 4

Utilization Category B

Compliance IS / IEC 60947 (Part-2), EN 60947-2, IEC 60947-2

Operational Temperature Range

-250 C to 700 C
(As per IEC 60068-2-1/ IEC 60947-1-Q)

Storage Temperature Range (As per IEC 60068-2-1/2) -400 C to 850 C

Rated Ultimate S.C.

Icu (kA) 800Va.c. 50 50 50, 65
Breaking Capacity

Rated Service S.C.

Ics (kA) 800Va.c. 100% Icu
Breaking Capacity

Rated Short-time 1.0 sec 50 50 50, 65

Icw (kA)
Withstand Capacity 3.0 sec 36 50 50, 65

Rated S.C. Making

Icm (kA) 800Va.c. 105
Capacity

Break Time (ms) 25

Closing Time (ms) 60

Mechanical Life(1) With Routine maintenance 20000 15000 10000

With Specific maintenance(2) 20000 15000 10000

Electrical Life (1)
With Routine maintenance 1000 1000 1000

(1) Value corresponds operating cycle

(2) With necessary component replacement

*4000A : Only for Drawout version

22
Release Specification

Parameters MTX1.0 MTX1G MTX1.5G UW-MTX3.5C

Pick-up Current 0.4 to 1 In in step
Ir = x In OFF- 0.4-0.5-0.6-0.7-0.8-0.85-0.9-0.95-1
Setting for I2t of 0.05
Time delay tr 10 s 0.5-1-2-4-6-12-18-24-30 s
Overload 0.5 to 0.95 in step
(Phase) Pre-alarm 0.9 x Ir (fixed)
of 0.05 x lr
Protection Mode ON/OFF

Thermal Memory ON/OFF

Pick-up Current .6 to 12 In in step
Is = x In 0.6-1-1.5-2-3-4-6-8-10-12
Setting of 0.05
Time delay ts 20-100-200-300-400 ms
Short-Circuit
.5 to 0.95 in step
Pre-alarm 0.5 x Is (fixed)
of 0.05 x ls
I2t ON/OFF
1.5 to 10 in step
Pick-up Current
Ip = x In OFF-1.5-2-3-4-6-8-10-12-15 of 0.1; 10 to 15 in
Setting
Instantaneous step of 1
Protection Mode ON/OFF
Pick-up Current 0.1-0.2-0.3-0.4-
Ig = x In - OFF-0.2-0.3-0.4-0.5-0.6
Setting 0.5-0.6
100 ms to 1s in
Time delay I2t OFF tg - 0.1-0.2-0.3-0.4-1 s
step of 100 ms
100-200-300-400
Time delay I2t ON tg - 0.1-0.2-0.3-0.4 s
Earth-Fault ms
0.5 to 0.95 in step
Pre-alarm - 0.8 x Ig (fixed)
of 0.05 x lg
I2t - ON/OFF

Protection Mode - ON/OFF

Altitude derating of OMEGA ACBs

As altitude rises from sea level, the density of that air reduces dramatically. Reduced air density at altitudes greater
than 2000 meters affects the ability of a circuit breaker to transfer heat and interrupt faults compared with sea
level.The ability of fault interruption reduces with the increase of altitute because di-electric strength of air also
reduces with density.

Altitude derating
Altitude H (m) <2000 3000 4000 5000
Rated service voltage (at 50/60 Hz) Ue (V) Ue 0.9Ue 0.8Ue 0.7Ue
Rated Uninterrupted Current at 400 C In (A) In 0.98In 0.96In 0.94In
Impulse withstand voltage Uimp (kV) 12 11 10 8
Rated insulation voltage Ui (V) 1250 900 780 700

23
Overload - I2t Instantaneous
(UW-MTX 1.0/1G/1.5G/3.5C) (UW-MTX 1.0/1G/1.5G/3.5C)

Short-Circuit - I2t ON Short-Circuit - I2t OFF

(UW-MTX 1.0/1G/1.5G/3.5C) (UW-MTX 1.0/1G/1.5G/3.5C)

24
Ground Fault - I2t ON Ground Fault - I2t OFF
(UW-MTX 1.0/1G/1.5G/3.5C) (UW-MTX 1.0/1G/1.5G/3.5C

Overload - I2t
(UW-MTX1.0)

25
Mounting and Bus Bar Support

For Fixed Breakers

CAUTION:
Inadequate termination support may result in
overheating & adversely affect performance
during short circuit conditions.

For Draw-out Breakers

* Maintain adequate clearance between links as applicable standards All Dimensions in mm

26
Mounting

1000-2000A Fr.1 3P Fixed Circuit Breaker

Draw-out Circuit Breaker

A Mounting holes suitable for M10 / Equivalent BS bolt All Dimensions in mm

27
Mounting

2000A-3200A Fr.2 3P Fixed Circuit Breaker

Draw-out Circuit Breaker

All Dimensions in mm
A Mounting holes suitable for M10 / Equivalent BS bolt "* 4000A only in drawout version

28
Mounting

3200-5000A
1000-2000AFr.3
Fr.13P
3PFixed
FixedCircuit
Circuitbreaker
Breaker

Draw-out
3200-5000A Circuit
Fr.3 3P FixedBreaker
Circuit Breaker

A Mounting holes suitable for M10 / Equivalent BS bolt All Dimensions in mm

29
Termination - Fixed Breakers

2000A Fr.1 3P Vertical Termination*

* Note: Terminal Adapters to be ordered separately.

2500A Fr.2 3P Vertical Termination*

Image is only for representation purpose

* Note: Terminal Adapters to be ordered separately.

All Dimensions in mm

30
Termination - Fixed Breakers
Mounting

1000-2000A
3200A Fr.2Fr.1 3P FixedTermination*
3P Vertical Circuit Breaker

Image is only for representation purpose

* Note: Terminal Adapters to be ordered separately.

3200-4000A Fr.3-3P Vertical Termination*

Image is only for representation purpose

* Note: Terminal Adapters to be ordered separately.

All Dimensions in mm

31
Termination - Fixed Breakers

5000A Fr.3-3P Vertical Termination*

Image is only for representation purpose

* Note: Terminal Adapters to be ordered separately.

All Dimensions in mm

32
Accessories & Features

CZ Switch disconnector

Highlights
• Wide range of current 125A to 630A gives flexibility in designing ACCB with
multiple number of incomers for 800V a.c. application
• Wide range of current 125A to 630A gives flexibility in designing SMB with multiple
number of incomers for 1000V - 1500V d.c. application
• For CZ1 maximum Al cable cross section termination capacity for 50oC is 185 sqmm upto 250A
and 240 sqmm for 315A
• For CZ2 maximum Al cable cross section termination capacity is 2x300 sqmm

Key Feature
• Range: FGS range - 63A, 800V a.c.
CZ1 range - 125A to 315A ,800V a.c.
CZ2 range - 315A to 630A ,800V a.c.
CZ1 range - 125A to 315A ,1500V d.c.
CZ2 range - 315A to 630A ,1500V d.c.
• Variants : Extended handle and direct handle versions
• Conforms to IEC 60947-3
• RoHS compliant

Key Feature
• Operating Shaft
• Phase Barriers
• Terminals Shrouds
• Direct handle kit
• Shorting Link PV DC
• Extended handle kit

33
MountingSpecification
Technical

AC Switch Disconnector
Frame Size Unit FGS CZ 1 CZ 2

Current Range In A 63 125 160 200 250 315 315 400 630
Rated Operational
Ue V a.c. 800
Voltage
Short circuit making kA
Icm - 30 45 45
capacity (peak)
Rated Breaking
Capacity (AC 22A at kA 1 1 1.3 1.6 2 2.5 2.5 3.2 3
800Vac)

Rated short 8 kA upto 250 A 16 kA for 400 A

1 kA
time withstand Icw 2.5
sec (rms) 10 kA for 315 A 20 kA for 630 A
capacity
Impulse Withstand
Uimp kV 10 12
Voltage
Rated Insulation 1250
Ui V 1000
Voltage
Mechanical life cycles 10000 20000 20000
Electrical life cycles - 2000 2000
Utilzation category AC21B AC-22A

Operating Frequency Hz 50 50/60

No. of poles 3P

DC Switch Disconnector

Frame Size Unit FGS CZ 1 CZ 2

40,63A (@1000V
Current Range In A DC)& 32,40A 125 160 200 250 315 315 400 630
(@1500V DC)
Rated Operational
Ue V d.c. 1500 1000, 1500
Voltage
Short circuit making
Icm kA (rms) - 30 45
capacity
16 kA for 400
Rated short 8 kA upto 250 A A
1
time withstand Icw kA (peak) 1(@1000V d.c.)
sec 10 kA for 315 A 20 kA for 630
capacity
A
Impulse Withstand
Uimp kV 8 12
Voltage
Rated Insulation Voltage Ui V 1500 1500

Mechanical life cycles 30000 20000 20000

Electrical life cycles - 2000 2000

Utilzation category DC-21B DC-21B
No. of poles 4 2P/3P
All Dimensions in mm

34
Dimensions and Mounting

CZ1 AC SD 125/160/200/250/315A
MINIMUM : 140
MAXIMUM : 322
MINIMUM : 120
E 139.4 104 MAXIMUM : 302

C 42.5 3 42.5
D (Mounting) 3
10 10

300 With Accessories

10
146 (Mounting)

B
A

PANEL DOOR

4 no. of mounting hole

suitable for M6 hardware
49 Termination Hole
DIRECT HANDLE VERSION EXTENDED HANDLE VERSION

No. of Hardware suitable

Rating (A) A B C D E
poles for termination
2P 137 161 25 69 144
125-250 3P 137 161 25 118 193 M10
4P 137 161 25 138 242
2P 150 180 35 69 144
315 3P 150 180 35 118 193 M12
4P 150 180 35 138 242

320
99

180
8

35
Technical Specification
Dimensions and Mounting

CZ1 AC SD 125/160/200/250/315A

Panel Cutout
A
B

4 Holes,Ø4

73

No. of
SD Mounting Holes A B
Poles

2P 69 0

3P 118 0

4P 139 69

Mounting Orientation
180°
90° 90°

Reference

Termination Capacity

125/160/200/250A 315A

Termination Capacity Cable with Lug 1X185mm2 1X240mm2

as per Standard Busbar 1X35mmx10mm 1X35mmx10mm
Maximum Cable with Lug 2X185mm2 2X240mm2
Termination
Capacity Busbar* 2X35mmx10mm 2X35mmx10mm

Max. 20 N-m at Max. 20 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.

Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

36
Accessories & Features

CZ1 AC SD 125/160/200/250/315A

Phase Barrier

Terminal Shroud

Direct Handle Padlock

ON ON
I I

O O
OF OF
F F

Use locks as recommended

Flip the locking tag as shown Ø5.....Ø7mm. (Max 3 Nos.)

Note : It is recommended to use Phase barrier and Terminal shrouds

37
Accessories & Features

CZ1 AC SD 125/160/200/250/315A

Handle Feature - Interlock Defeat in on State

(For extended handle only)

Handle Feature - Interlock (For extended han(-

For extended handle only)

Shaft Locking

38
Dimensions and Mounting

CZ2 AC SD 315/400/630

Shaft Locking
Arrangement

1. Unscrew shaft locking 2. Adjust/Cut the shaft as per 3. Tighten the Nut-Bolts.
arrangement and insert panel requirement.(Min. (T ighten Torque : 1.6 N-m)
Ensure that shaft pin is
CAUTION vertical for any mounting shaft as per required length. Engagement Length, X=60mm
orientation of the switch Inside Mechanism)

No. of
Rating(A) A B C D E F
poles

2P 181 206 32 90 186 4

3P 181 206 32 155 251 4

315/400
4P (side) 181 206 32 220 316 4

4P (center) 181 206 32 180 316 4

2P 184 222 45 90 186 5

3P 184 222 45 155 251 5

630
4P (side) 184 222 45 220 316 5

4P (center) 184 222 45 180 316 5

Encloure Size and Mounting

39
Technical Specification
Dimensions and Mounting

CZ2 AC SD 315/400/630

Panel Cutout

No. of
A B
Poles

2P 90 0

3P 155 0

4P - SIDE 220 0

4P - CEN-
180 90
TER

Mounting Orientation

Termination Capacity

315/400A 630A

Termination Capacity as Cable with Lug 1X300mm2 2X240mm2

per Standard Busbar 2X30mmx8mm 2X40mmx8mm
Maximum Cable with Lug 2X300mm 2
2X300mm2
Termination
Capacity Busbar 2X50mmx12mm 2X50mmx12mm

Max. 27 N-m at Max. 27 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

40
Dimensions and Mounting

CZ1 DC SD 125/160/200/250/315A

Overall and Mounting Dimension

Rat- No. of Hardware suitable

A B C D E
ing(A) poles for termination

2P 137 161 25 69 144

125-250 3P 137 161 25 118 193 M10

4P 137 161 25 138 242

2P 150 180 35 69 144

315
3P 150 180 35 118 193 M12

4P 150 180 35 138 142

41
Technical Specification
Dimensions and Mounting

CZ1 DC SD 125/160/200/250/315A

Termination Capacity

125/160/200/250A 315A

Termination Capacity Cable with Lug 1X185mm2 1X240mm2

as per Standard Busbar 1X30mmx10mm 1X35mmx10mm
Maximum Cable with Lug 2X185mm 2
2X240mm2
Termination
Capacity Busbar* 2X30mmx10mm 2X35mmx10mm

Max. 20 N-m at Max. 20 N-m at

Tightening Torque
termination termination

Note: For Aluminum cable, Tin plated lugs are recommended.Termination bolt head should be on bottom side as shown in figures
* : Higher length (M10 X 40 for 250A; M12 X 40 for 315A) of termination bolt required to connect 2 busbar of 10mm .

42
Accessories & Features

CZ1 DC SD 125/160/200/250/315A

Phase Barrier Terminal Shroud

Handle Feature - Padlock (For direct and extended handle)

Handle Feature - Interlock Defeat in on State (For extended handle only)

43
Technical Specification
Dimensions and Mounting

CZ2 DC SD 315/400/630

No. of
Rating(A) A B C D E F D
poles

2P 181 206 32 90 186 231 4

315/400
3P 181 206 32 155 251 255 4

2P 184 222 45 90 186 278 5

630
3P 184 222 45 155 251 333 5

44
Dimensions and Mounting

CZ2 DC SD 315/400/630

Mounting Orientation

Terminal Capacity

315/400A 630A

Termination Capacity Cable with Lug 1X300mm2 2X240mm2

as per Standard Busbar 2X30mmx8mm 2X40mmx8mm
Maximum Cable with Lug 2X300mm2 2X300mm2
Termination
Capacity Busbar 2X50mmx12mm 2X50mmx12mm

Max. 27 N-m at Max. 27 N-m at

Tightening Torque
termination termination

45
 Dimensions and mounting

Technical Specification
Accessories & Features

CZ2 DC SD 315/400/630

Phase Barrier Terminal Shroud

Direct Handle Padlock

Circuit Diagrams

46
Accessories & Features

AU Series Surge Protection Devices

Key Feature
• Type 2: Protection against indirect lightning and switching surges
• Type 1+2: Protection against direct and indirect lightning surge

Product Specifications Type 2 SPDs

AUSP023P40-1500

Operating Voltage 800 V a.c.

Maximum Operating Voltage Uc 1500 V a.c.
Nominal Discharge Current In15 x 8/20 micro second 20 kA
Maximum Discharge Current Imax
40 kA
Maximum withstand 8/20 micro second
Protection Level Up <7 kV
Admissible Short Circuit Current 25 kA
Back up Fuses Fuse type gG - 125A
Terminal Capacity 2.5-25 mm²
Disconnection Indicator (per pole) 1 mechanical indicator
Remote Signalling output on change-over contact
Operating Temperature -400C to 850C
Protection Degree IP 20
Dimension (HxWxD) 90 mm x 72 mm x 67 mm

47
AUSP123P50-1360
• Type 1 + 2 SPD power surge protector
• For 3-Phase AC power network
• Uc up to 880 Vac L/L
• Uc up to 1360 Vac L/PE
• In : 20 kA
• Iimp : 12,5 kA
• Pluggable module for each phase
• EN 61643-11, IEC 61643-11 and UL 1449 ed.4 compliance

Product Specifications Type 1+2 SPDs

AUSP123P50-1360

Operating Voltage 800 V a.c.

880 V a.c. (L/L)
Maximum Operating Voltage Uc
1360 V a.c. (L/PE)
Nominal Discharge Current In15 x 8/20 micro second 20 kA
Maximum Discharge Current Imax
50 kA
Maximum withstand 8/20 micro second
Max. lightning Current by Pole Iimp
12.5 kA
Max withstand at 10/350 micro second
3.4 kV (L/L)
Protection Level Up
5.1 kV (L/PE)
Admissible Short Circuit Current 25 kA
Back up Fuses Fuse type gG - 125A
Terminal Capacity 2.5-25 mm²
Disconnection Indicator (per pole) 1 mechanical indicator
Remote Signalling output on change-over contact
Operating Temperature -400C to 850C
Protection Degree IP 20
Dimension (HxWxD) 90 mm x 90 mm x 82 mm

48
AUSP123P50-880
• Type 1 + 2 AC power surge protector
• For 3-Phase AC power network
• Uc up to 880 Vac L/L
• Uc up to 1360 Vac L/PE
• In : 20 kA
• Iimp : 12,5 kA
• Pluggable module for each phase
• EN 61643-11, IEC 61643-11 and UL 1449 ed.4 compliance

Product Specifications Type 1+2 SPDs

AUSP123P50-880

Operating Voltage 800 V a.c.

Maximum Operating Voltage Uc 880 V a.c.
Nominal Discharge Current In15 x 8/20 micro second 20 kA
Maximum Discharge Current Imax
50 kA
Maximum withstand 8/20 micro second
Max. lightning Current by Pole Iimp
12.5 kA
Max withstand at 10/350 micro second
Protection Level Up 3.4 kV (L/PE)
Admissible Short Circuit Current 25 kA
Back up Fuses Fuse type gG - 125A
Terminal Capacity 2.5-25 mm²
Disconnection Indicator (per pole) 1 mechanical indicator
Remote Signalling output on change-over contact
Operating Temperature -400C to 850C
Protection Degree IP 20
Dimension (HxWxD) 90 mm x 72 mm x 82 mm

49
Exora MCBs Miniature Circuit Breaker
Highlights
• Conforms to IEC 60947-2, IEC60898-1

Key Feature
• Conforms to IS/IEC 60898-1, IEC 60947-2
• Characteristic Tripping curves B, C & D
• Energy limiting Class 3 allows low let-through energy in the system
• Unique patented design gives both label holder and true contact indication facility For individual poles
• Low watt loss – almost 50% of the values prescribed by IEC 60898-1 saves energy
• Trip free mechanism to ensure maximum safety
• Design based on advanced current limiting hammer trip mechanism ensures quick breaking
• No line load bias gives flexibility for incomer supply termination on either sides
• Connection - Biconnect on both sides of MCB
• Accessories – wide range of accessories like aux contact, trip alarm contact and shunt release
• DC MCB as per IEC 60947-2 : Rated Voltage: 130/250V d.c. (SP/DP), 250/500V d.c. (SP/DP)
• CE conformity

50
Technical Specification

Specifications DC MCBs-IEC 60947-2

Current Rating 0.5 to 63A 0.5 to 40A 0.5 to 40A
Tripping Characteristic C Curve C Curve C Curve
Breaking Capacity 6kA 10kA 6kA
250V d.c. - Single Pole 1000V d.c. - Double
130V d.c. - Single Pole
Rated voltage 500V d.c. - Double Pole
250V d.c. - Double Pole
Pole (4 MOD)
Supply Polarity independent Polarity dependent* Polarity dependent*
Rated Impulse Voltage 4kV 6kV
Rated Insulation Voltage 500V 1000V
Minimum Operating Voltage 24V d.c. 24V d.c.
Degree of Protection IP20
Applied Connection Torque 4Nm
Operating Temperature - 250 C to + 700 C
Calibration Temperature 300 C
Termination Capacity 35 mm2 (Rigid)
Mechanical Life (operating cycles) >100,000 20,000
Electrical Life (operating cycles) 3000 (L/R=2mS) 1500 (L/R=2mS)
Mounting Position Horizontal/Vertical/Flat
Mounting Snap fixing on standard profile 35 X 7.5mm
*Refer connection diagram below for connection

Dimensions

-
ON
ON

20.5
20.5

87.3
87.3

45

85
45

85

47°
47°

OFF
OFF

39.5
39.5

++ -

31 5.5 31 5.5
36.5 35 36.5 17.5 35
17.5
41 41
43 43
59.6 SP DP 59.6 SP DP
69 69

Bottom Feed Top Feed

+ Load - + Load - - DC Source + - DC Source +

- -

+ + - + +-

+ DC Source - + DC Source - - Load + - Load +

SP DP SP DP

51
BBT Busbar Trunking System
Highlights
• Type tested design as per IEC 61439 Part-1 & 6

• UL certified , multilayer Class-F insulation

• Designed for higher ambient temperature

• Designed for outdoor installation (ingress protection up to IP66)

• Tested for Seismic Zone-5 & High Seismic Qualification Level

• Certified for Fire Resistance and Flame Propagatiol Tests

• Higher joint overlapping area ensures less voltage drop and less heat loss

• Modular design, takes less time for installation.

• Compact design occupies less space for termination and bending.

Key Feature
• Range (A): Al-250 to 5000; Cu-400 to 6300

• Rated Voltage (V): Up to 1000

• Insulation Voltage (V): 1100

• Configuration: 3Phase 3Wire

• Degree of Protection: IP54, IP55, IP65, IP66

• Insulation: Class-F, UL certified, RoHS compliant multilayer PET insulation

• Joint Block: Maintenance free nut with twin headed design

52
Technical Specification

Specification Detail
Busduct Construction Sandwich Type
Busduct Rating Aluminium - 250 A to 5000 A Copper - 400 A to 6300 A
Rated Operational Voltage (Ue) 415 V / 690 V and maximum upto 1000 V
Rated Insulation Voltage ( Ui) 1100 V
Rated Impulse Voltage (Uimp) 8kV/12 Kv (1.2/50 micros)
Rated Dielectric Voltage 2.5 Kv for 5 sec
Rated Frequency 50 Hz/ 60 Hz
Pole Configurations 3P 3W with or without 50% internal earth and provision for
munting external earth
Insulation Class Class-F (155 degree C)
Insulation Material Multilayer Polyethylene Terephthalate (UL listed)
Surface Coating on Enclosure Epoxy Powder Coating
Paint Shade RAL 7032
Degree of protection IP54 / IP55 for Indoor and IP55 / IP 66 for Outdoor
Joint Block Uniblock Joint with twin-headed maintenance-free nut
Seismic Compliance Zone-5, as per IS 1893 (Part 1) - 2002 and IEEE 693 - 2005
Tested with Vertical + Horizontal busduct and Plug-in Box
assembly
Fire Resistance in Building Penetration Verified for Integrity: 240 minutes
Resistance to Flame Propagation Verified

Short Circuit Withstand Capacity

Short Circuit Rating Short Circuit Rating

Rating (kA for 1 Sec) Rating (kA for 1 Sec)
(A) (A)
Aluminium Copper Aluminium Copper
250A 18 - 2000A 80 80
400A 25 25 2500A 80 100
630A 40 40 3200A 100 100
800A 50 50 4000A 100 100
1000A 50 50 5000A 100 100
1250A 65 65 6300A - 100
1600A 80 80

Accessories

Flanged End Feeder Horizontal Elbow Vertical Offset Elbows Vertical Elbow

53
Dimensions (Aluminium Busduct)

Dimensions (mm) Weight (kg/m)*

Rating
Indoor Busduct
(A) Conductor Size Height (H) Width (W)
3W
250A 1 - 6 x 30 135 70 7

400A 1 - 6 x 40 135 80 8

630A 1 - 6 x 60 135 100 10

800A 1 - 6 x 80 135 120 11

1000A 1 - 6 x 100 135 140 13

1250A 1 - 6 x 125 135 165 15

1600A 1 - 6 x 150 135 190 17

2000A 1 - 6 x 200 135 240 21

2500A 1 - 6 x 250 135 290 25

3200A 2 - 6 x 150 135 380 34

4000A 2 - 6 x 200 135 480 42

5000A 3 - 6 x 200 135 720 64

*Weight given in above table is straight feeder weight; it can vary by +/-5%

Dimensions (Copper Busduct)

Dimensions (mm) Weight (kg/m)*

Rating
Indoor Busduct
(A) Conductor Size Height (H) Width (W)
3W

400A 1 - 4 x 40 135 78 8

630A 1 - 6 x 40 135 78 10

800A 1 - 6 x 40 135 88 12

1000A 1 - 6 x 55 135 93 13

1250A 1 - 6 x 75 135 113 17

1600A 1 - 6 x 102 135 140 23

2000A 1 - 6 x 140 135 178 30

2500A 1 - 6 x 175 135 213 37

3200A 2 - 6 x 102 135 280 49

4000A 2 - 6 x 140 135 356 60

5000A 2 - 6 x 175 135 426 74

6300A 3 - 6 x 160 135 594 102

*Weight given in above table is straight feeder weight; it can vary by +/-5%

54
Impedance at 50Hz (Copper Busduct)

Unit: micro ohm/ metre)

Ampere Conductor (mm) Resistance
Reactance (X) Impedance (Z)
(Rac)

400A 1 - 4 x 40 131.65 19.49 133.09

630A 1 - 6 x 40 89.05 25.01 92.50

800A 1 - 6 x 50 72.08 21.39 75.19

1000A 1 - 6 x 55 65.93 20.02 68.90

1250A 1 - 6 x 75 49.57 16.15 52.13

1600A 1 - 6 x 102 37.75 13.16 39.98

2000A 1 - 6 x 140 28.94 10.80 30.98

2500A 1 - 6 x 175 24.27 9.49 26.06

3200A 2 - 6 x 102 18.88 6.58 19.99

4000A 2 - 6 x 140 14.47 5.40 15.44

5000A 2 - 6 x 175 12.14 4.74 13.03

6300A 3 - 6 x 160 8.58 3.29 9.19

Impedance at 50Hz (Aluminium Busduct)

Unit: micro ohm/ metre)

Ampere (A) Conductor (mm) Resistance
Reactance (X) Impedance (Z)
(Rac)

250A 1 - 6 x 30 198.84 48.6 204.68

400A 1 - 6 x 40 146.23 25.91 148.50

630A 1 - 6 x 60 107.53 17.51 108.95

800A 1 - 6 x 80 78.12 15.01 79.55

1000A 1 - 6 x 100 58.62 11.72 59.78

1250A 1 - 6 x 125 46.91 9.65 47.89

1600A 1 - 6 x 150 39.10 8.18 39.95

2000A 1 - 6 x 200 29.33 6.28 30.00

2500A 2 - 6 x 250 23.47 5.02 24.00

3200A 2 - 6 x 150 19.55 4.09 19.97

4000A 2 - 6 x 200 14.67 3.14 15.00

5000A 3 - 6 x 200 11.73 2.09 11.92

55
Line-to-Line Voltage Drop at 50Hz (Aluminium Busduct)

(Unit: V/100 Mtr)

Ampere Conductor (mm)
1.00* 0.90* 0.85* 0.80* 0.70* 0.60*

250A 1 - 6 x 30 8.61 8.67 8.43 8.15 7.53 6.85

400A 1 - 6 x 40 10.13 9.90 9.56 9.18 8.37 7.51

630A 1 - 6 x 60 11.73 11.39 10.98 10.53 9.58 8.57

800A 1 - 6 x 80 10.82 10.65 10.30 9.91 9.06 8.16

1000A 1 - 6 x 100 10.15 10. 02 9.70 9.34 8.56 7.72

1250A 1 - 6 x 125 10.16 10.05 9.73 9.38 8.60 7.76

1600A 1 - 6 x 150 10.84 10.74 10.40 10.03 9.20 8.31

2000A 1 - 6 x 200 10.16 10.09 9.78 9.43 8.67 7.84

2500A 1 - 6 x 250 10.16 10.09 9.78 9.43 8.67 7.84

3200A 2 - 6 x 150 10.84 10.74 10.40 10.03 9.20 8.31

4000A 2 - 6 X 200 10.16 10.09 9.78 9.43 8.67 7.84

5000A 3 - 6 X 200 10.16 9.93 9.59 9.21 8.40 7.54

*Power Factor

Line-to-Line Voltage Drop at 50Hz (Copper Busduct)

(Unit: V/100 Mtr)

Ampere Conductor (mm)
1.00* 0.90* 0.85* 0.80* 0.70* 0.60*

400A 1 - 4 x 40 9.12 8.80 8.46 8.11 7.35 6.55

630A 1 - 6 x 40 9.72 9.93 9.70 9.41 8.75 8.01

800A 1 - 6 x 50 9.99 10.28 10.05 9.77 9.11 8.36

1000A 1 - 6 x 55 11.42 11.79 11.53 11.22 10.47 9.63

1250A 1 - 6 x 75 10.73 11.18 10.96 10.68 10.01 9.24

1600A 1 - 6 x 102 10.46 11.00 10.81 10.56 9.93 9.19

2000A 1 - 6 x 140 10.02 10.65 10.49 10.26 9.69 9.01

2500A 1 - 6 x 175 10.51 11.25 11.10 10.87 10.29 9.59

3200A 2 - 6 x 102 10.46 11.01 10.82 10.56 9.93 9.20

4000A 2 - 6 x 140 10.02 10.65 10.49 10.26 9.69 9.01

5000A 2 - 6 x 175 10.51 11.25 11.10 10.87 10.29 9.59

6300A 3 - 6 x 160 9.36 9.99 9.85 9.64 9.12 8.49

*Power Factor

56
 Electrical Characteristics

EM101+, ER300 P Tariff meter

Highlights
• Measure kW and kVA along with date and demand integration period is 30 min.

• Measures instantaneous parameters such as Voltage, phase and neutral current,

active and apparent power, power factor and frequency.

• (6+0) digits backlit display & (2+4) digits high resolution display.

Key Bidirectional NET meters

• Current rating 5-30A & 10-60A
• Class 1 accuracy as per IS13779
• Bi-directional energy recording available
• Wide range of communication options - Optical/ RS 232/RF (optional)/ DLMS (Optional)
• Fully static & compact in size with bright LCD display
• Display consists of auto scrolling, manual scrolling (6+0 digit), battery mode & high resolution mode (2+4 digits)
• Forward energy recording irrespective of current direction
• High surge withstand capability
• Load surveys are available for 90 days with voltage, current, PF, KW & KVA
• Non time based reset backup or billing profile for last 12 months
• Provisions for meter terminal sealing arrangement to prevent tampers
• Anti-tamper features
• Meters are available with suitable hinge type polycarbonate enclosers/boxes (optional)
• Display and data reading in power OFF condition (with in-built battery model only)

57
Technical Specifications

Parameter Single Phase Energy Meter - EM101+

1 Phase 2 Wire Whole Current type / 3 phase 4

Connection
wire Whole Current type

Accuracy Class 1 as per IS13779

Voltage Rating - Whole current / Direct Connected 240 V (P-N)

Whole current / Direct

-50% to +20%
Connected
Voltage variation
CT Operated, CT/PT
-
operated
Current Rating Whole current /
5-30 A, 10-40 A, 10-60 A
Direct Connected

Frequency 50Hz ±5%

Power Consumption As per IS13779

Operating temperature -10°C to +55°C

Ingress Protection (IP) IP51

Dimensions

1. LCD Display 5. Sealing Screw

2. LED 6. Terminal Cover
3. Optical Port 7. Meter Base
Note: Actual meter dimensions
will depend on meter configuration 4. Push Button 8. Meter Cover

58
 Electrical Characteristics

Two Port ABT Meter - ER300P

Highlights
• kVAh, kWh, kVArh lag, kVArh lead, phase wise voltages and currents
• Multi level password for data reading and programming
• Electrically isolated optical port as per 1S15959/ IEC62056-21 (DLMS, CAT B)
• RS 232 / RS 485. as optional communication interfaces
• DLMS as per IS15959 and MODBUS (For RS485) protocal supported
• Missing Potential, Voltage related tampers, Current related tampers, Low Power Factor, Meter Cover Open,
Abnormal Magnetic influence, Wrong phase sequence detection
• Ultrasonic welding available for temper proof provision

ABT Meter - ER300 P

• Accuracy class 0.2s as per relevant IS 14697
• Frequency based energy measurement
• Suitable for inter-utility or open access consumer billing

• Store energy values in every 15 mints block along with avg frequency in same interval

• ABT meters are also available as per PGCIL specs, guidelines & capable of convert data in NPC format (Power Grid's report format)

• Consider Step frequency 0.01Hz.

• Communication via optical (IEC1107/DLMS) / RS232 / RS485 (MODBUS/DLMS)-(Optional)

• Anti-tamper features
• Display and data reading in power OFF condition

• Capable of recording Load Survey data & easy download through Base Computer Software

• Approved in all major utilities across the country

• SAMAST Complaint

59
Technical Specifications

Parameter ABT Meter - ER300 P

Connection 3 Phase 4 Wire
Accuracy Class 0.2s/0.5s (active/reactive) as per IS14697 or 0.2s/0.2s (active/active)

Voltage Rating - CT\PT 3 Phase 4 Wire 63.5 V (P-N)

Operated 3 Phase 3 Wire 110 V (P-P)
Whole current / Direct
-40% to +20%
Connected
Voltage variation
CT Operated, CT/PT
-30% to +20%
operated

Current Rating CT\VT Basic 1A, 5A

Operated Maximum 120 % of basic current (200 % basic current-Optional)
Frequency 50Hz ±5%
Power Consumption As per 1S14697 for CT/PT operated
Operating temperature -10°C to +55°C
Ingress Protection (IP) IP51

Dimensions

1. LCD Display 6. Up/Down Scroll Push Button

2. LED kVArh 7. Optical Port
3. LED kWh 8. Meter Base
4. Battery Push Button 9. Meter Cover
Note: Actual meter dimensions
will depend on meter configuration 5. Reset Push Button 10. Terminal Cover

60
 Electrical Characteristics

Three Phase HTCT ABT Multi-Port

Meter ER300P
Highlights
• Class 0.2S as per relevant IS and IEC Standards
• 3 Phase 4 Wire
• 4 Quadrant Measurement
• Anti-tamper features
• Self-diagnostic capability
• Bidirectional Energy recording
• Load Survey (Interval Data) features
• Optical port / RS 232 / RS 485 / TCP/IP communication port

Specifications
Connection 3 Phase 4 Wire
Standards Applicable IS 14697, IEC 62052-11, IEC 62053-22, CBIP 325
Accuracy Class Cl 0.2s
Rated Voltage 3 x 63.5V (P-N)
Voltage Variation -40% to +20%
-/1A
Current Rating
-/5A
Starting Current 0.1% of basic current
Accuracy up to 200% of basic current
Frequency 50Hz
Frequency Variation -5% to +5%
Power Consumption As per IS 15959
Operating Temperature -10ºC to +55ºC
Ingress Protection IP 51

61
 Supported parameters (As per customer requirement)
Phase wise voltages and currents, system PF, active power, reactive power
Instantaneous
and apparent power Frequency, Phase sequence, Total harmonic distortion
Energy Measurement 4 quadrant measurement of kWh, kVArh, and kVAh
Maximum Demand kW and kVA along with date and time
Time of Day Up to 8 registers, profiles and seasons
Display
LCD 8 digit backlit display
Display mode Auto scroll, push button and high resolution modes
LED Pulse LEDs for kWh and kVArh
Other Features
Day wise energies
Load survey profile
Tariff wise energies
Display and data reading in absence of power
Tamper detection
Bi-directional energy recording available
Data security Multi-level password for data reading and programming
Communication Electrically isolated optical port as per IEC62056-21
Optional communication RS 232 / RS 485 / TCP/IP communication port
Interface
Protocol supported IEC / DLMS / MODBUS / Customer specific
Tamper proofing provision Ultrasonic welding available (optional)

62
 Accessories & Features

WL 4415 Bi-directional Multifunction Meter

Highlights
Key Feature
• Accuracy Class 0.5S as per IEC 62053-22
• True RMS measurement

• Password protection provision for security

• THD for Voltage and Current

• Site selectable for 3 Phase 4 wire, 3 Phase 3 wire, 1 Phase

Technical Chart
Type of measurement Type 3 Phase 4 Wire, 3 Phase 3 Wire, 1 Phase
True RMS, 128 samples per cycle
1 sec update time, 4 Quadrant Power & Energy
Measurement Accuracy Class 0.5S as per IEC 62053-22
Display type and 4 digit for instantaneous and 8 digits for
LED
resolution cummulative
Measuring circuit 50 - 600 VLL
PT Primary and Secondary user programmable for
Input voltage
LT and HT applications
Burden: 0.2VA max per phase
-/5A and -/1A site selectable
Current range from 20mA-5A with overload
capacity upto 120% In (i.e. 6A)
Input current Burden: 0.2VA max per phase
CT Primary and Secondary user programmable for
LT and HT applications

Frequency 45-65 Hz
Auxilliary circuit Aux voltage 80 - 300V a.c./d.c
Aux burden <5VA
Freq range 45-70Hz

63
 Power Details Test of power as per IEC 62053-21
consumption
Voltage dips and as per IEC 62053-21
interrupts 10A max continuous, 20 times of In for 3 sec
Short time over current
protection
Electro-Magnetic Fast transients burst test ±4 kV as per IEC 61000-4-4
Compatibility (EMC) Immunity to electrostatic ±8 kV air discharge, ±6 kV contact discharge as per
discharge IEC 61000-4-2
Radiated, radio- 10 V/m as per 61000-4-3
frequency,
electromagnetic field 10 V/m as per IEC 61000-4-6
Immunity test Immunity
to electromagnetic HF ±6 kV as per IEC 61000-4-5
fields 1 A/m as per IEC 61000-4-8
through conducted lines Class B as per CISPR 22
Surge immunity test
Rated power frequency
magnetic fields
Emission
Insulation Properties Impulse voltage test ±6 kV as per IEC 62052-11
AC voltage test 4 kV double insulation as per IEC 62053-21
Operating Conditions Operating temperature -10 C to +55 C
Storage temperature -25 C to +70 C
Humidity 5% to 95% relative humidity non-condensing
Recommended 12 to 14 SWG with U type lug of max 6.75mm
connecting wire width
Mechanical Conditions Shock As per standard IEC 60068-2
Vibration 10 to 55 Hz, 0.15 mm amplitude
Casing Plastic mould protected to IP51 from front side
Safety Measurement category CAT III
Pollution degree 2
Protection IP20 at terminals, IP 51 when mounted on panel
Weight and Dimensions Product weight 275 gms
Bezel dimension 96 X 96 X 30 mm
(W X H X D) 90 X 90 +2.0-0.0 mm
Panel cutout
Outputs Meter constant :10000/ (external CT ratio X PT ratio)
Communication RS485 port Modbus RTU
Type 2400, 4800, 9600, 19200, 38400 bps (preferred
Baud rate 9600)
Parity Odd, Even, None
Slave id 1 to 247 (programmable)
Isolation 2 kVAC isolation for 1 minute between
communication and other circuits

64
Parameter List

WL4415 Parameters

V1, V2, V3, V12, V23, V31, Avg (VLN, VLL)

A1, A2, A3, Aavg
% A Unbal, % V Unbal (Avg and Phase wise)
PF-1, PF-2, PF-3, PF (Avg), Hz, RPM
Instantaneous Parameters
Phase Angle A°1, A°2, A°3, V°1, V°2, V°3
W1, W2, W3, W(total)
VA1, VA2, VA3, VA(total)
VAr1, VAr2, VAr3, VAr (total)

Wh, VAh, VArh (Lead & Lag) - Import, Export

Cumulative Parameters Load hours - Import, Export
Number of Interrupts, CO2

V THD%, V1, V2, V3 - harmonic

Harmonics
A THD%, A1, A2, A3, - harmonic

Communication RS485 Modbus RTU

65
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