Busduct System

- Busduct System
39 Henikwon

Give Your Project The L&T Advantage

Give your prestigious project the winning edge. Give it the advantage of L&T's Henikwon Busduct system - trusted by
discerning electrical engineers in 30 countries.

Longer life: Each Henikwon Busbar is epoxy compound-coated with a uniform thickness of 1.6 mm. The epoxy
coating matches metallic expansion and contraction, ensuring that it does not crack or allow moisture to seep in. This
means reduced corrosion, and a longer life for your system.

Higher savings: A higher joint overlapping area ensures less power loss. More savings – in terms of not just money,
but also power, which is becoming scarcer by the day.

Enhanced safety: To ensure the highest degree of

safety, Henikwon Busduct systems are totally
enclosed and well-insulated.

Greater reliability: Comprehensive manufacturing

processes, strict compliance and selection of inputs
give you the assurance of reliability. Further, the
Henikwon Busduct system is certified by an
independent third party.

Across the years, the Henikwon Busduct system

has been successfully installed in several locations
in over 30 countries.
 40

Busduct Systems for Every Need

To meet your entire range of power delivery needs, Henikwon
offers two Busduct systems from 100A to 6300A.

• Medium Voltage system for power transmission

• Low Voltage system for connection between transformer
and for back-up supply to power distributions and as a
plug-in in building power systems.

Whatever your project, whatever its size, you can rely on

Henikwon to provide a Busduct system that precisely meets
your requirements.

Busducts can be used in following areas:

• Residential apartments
• Business premises and commercial complexes
• Resorts and hotels
• Educational institutions
• Shopping centres
• Assembly lines
• Industries
• Airports
• Hospitals
• Oil & Gas platforms
• Electricity generation plants
41

Sandwich System
Aluminium Busduct System
The Sandwich System is a lightweight, low impedance,
non-ventilated, naturally cooled and totally-enclosed Electro-galvanized Steel Housing
Or Aluminum Housing
system.

The system is available with 50% or 100% internal

earthing, 50% or 100% neutral busbar. To address
Epoxy
harmonics, 200% neutral busbar is also available. Compound
Insulation

Busbars
99.99% pure copper Busbars are tin / silver coated to
protect them from water and moisture that can cause
reduction in dielectric strength. Likewise, aluminium
Busbars are made of high-conductivity electrical grade Aluminum Conductor
aluminium (99.6% pure aluminium).

Copper Busduct System

Joint Electro-galvanized Steel Housing
• Direct contact jointing, which ensures total and higher or Aluminum Housing
surface area contact, results in less power-loss and
cooler performance
• All joints are maintenance-free. The high-strength bolt Epoxy
Compound
is insulated with a high quality insulation material Insulation
• For uniform distribution of the clamping force, all
bolted connections are equipped with a leaf spring
• A maintenance-free lock nut is provided where the
outer head will be twisted off, once it reaches the
appropriate torque
Tin Coated
(Silver Coated available
on request)" Copper Conductor

Enclosure / Housing
• Galvanized steel housing or aluminum housing with
epoxy powder-coated by an automated process to Fire Rated Copper Busduct System
achieve fire resistance
• The housing also gives integral ground as standard Electro-galvanized Steel Housing

requirement where it acts as an earth conductor

• Due to its compact, sandwich-type construction, it
does not require an internal fire-stop barrier
MICA Film

Epoxy
Compound
Insulation

Tin Coated
(Silver Coated available
on request) Copper Conductor
 42

Plug-in Box / Tap-off Box Type Sandwich

• Built-in interlock system that prevents opening
Rated Operating Voltage Up to 1000V
of the cover when the device inside is ON
• Safety provision to prevent the installation or Rated Current 400A to 6300A
removal of plug-in box when turned ON Rated Insulation Voltage 1000V
• During insertion, the earth conductor makes
Rated Withstand Voltage 8 kV
contact first before the phase conductors
This follows the first-in-last-out concept System Frequency 50 Hz & 60 Hz
• The plug-in box is equipped with internal 400A 25 kA
insulation barriers to prevent accidental 630A 40 kA
contact with the conductor
Fault Level for 1 Sec 800-1000 50 kA
• TOUs are provided with padlocking
1250-2000 65 kA
2500-6300 100 kA
o
Design Ambient Temp. 50 C
Degree of Protection (IP) IP-54, IP-55, IP-65 IP-66 & IP-67
Relevant Standard IEC-60439-1 & 2/IEC-61439
Enclosure Galvanized Steel or Aluminum
R R
Y Y
B B
Enclosure Coating Epoxy Powder (RAL 7032)
G
Enclosure Thickness 1.6mm (GS) / 2mm or 3mm (AI)
Conductor Material Copper or Aluminum
3-phase 3-wire with housing ground 3-phase 3-wire with Internal ground
3P with no or 50% or 100% or
Configuration 200% neutral + internal earth

R R (50% or 100%) or provision

Y Y
B for external earth
B
N N
G Joint Direct Jointing
Insulation Class Class - F
3-phase, 4-wire with housing ground 3-phase, 5-wire with Internal ground Insulation Material Epoxy Compound
& 50% or 100% Neutral & 50% or 100% Neutral

R
R
Y
Y
B
B
N
N
N
N
G

3-phase, 5-wire with housing ground 3-phase, 6-wire with Internal ground
& 200% Neutral & 200% Neutral

G
R
Y
B
N
G

3-phase 6-wire with 25% + 25% Internal ground

and 100% Neutral
43

Other Offerings
Conventional System Busbars
This is a totally metal-enclosed air-insulated Busduct • The bus conductor is available in tin-plated
system which complies with the characteristics and 99.99% pure copper
structure specified in BS 5486-2, IEC 60439-2, • Busbar is supported with fiberglass reinforced
JIS C 8364, NEMA, ANSI and CSA. SMC insulator which withstands above 180°C
• Internal or provision for external earth bars are
• Low-capacity power supply systems are widely available, as required
used for various factories, machine shops, school
laboratories and commercial buildings
Enclosure/Housing
• For most indoor locations where there is a need
• The indoor Busduct is totally enclosed in non-
for small blocks of conveniently available power,
ventilated housing made of 1.6 mm thick epoxy
the conventional system serves as a highly
powder-coated electro-galvanized steel sheet
rationalized solution with various features
• A total of 6 plug-in holes per 3000 mm unit are
available for various capacity ranges of the system Accessories
• A complete set of elbows, tees, terminations
for switchgear, floor flanges and end closures
are available

Straight Run

Busduct

Plug-in Box

Cable
 44

Plug-in Box Type Air-insulated

• The Plug-in Box is safely grounded with earth
Rated Current 100A to 400A
springs and they are the first to make contact
with the Busduct when the Plug-in Box is Conductor Material Copper
installed Rated Operating Voltage Up to 415V
• When the Plug-in box is attached to the Bus Peak Impulse Withstand
Duct, the neutral line is the first to connect
Voltage 6 kV
forming a solid neutral circuit. Likewise, the
neutral plug is the last to break circuit while Power Frequency With-
disconnecting the plug-in box from the Bus stand voltage for 1min 2.5kV
Duct to provide total neutral line priority over
all the energized lines System Frequency 50 Hz & 60 Hz
• The built-in interlock system prevents opening Fault Level for 1 Sec 20 kA
of the cover when the device inside is ON Degree of Protection IP - 54
• A safety provision will prevent the installation
or removal of a plug-in box when it is ON Enclosure Galvanize Steel Sheet
Enclosure Coating Epoxy
Enclosure Thickness 1.6 mm
Configuration 3P4W, 3P5W
(with / without Internal earth)
Joint Multiple Bolt Direct
Joint System
Insulator Class Class – H
Insulator Material SMC
Reference Standard IEC – 60439 – 1&2

Flatwise Elbow Edgewise Elbow

End-Feed Unit Centre-Feed Unit

45

Medium Voltage System

The Medium Voltage system is a non-segregated phase Joint
Busduct designed for inter-connection of switchgear, Splice plates joint, which are equal in cross section
power transformers or other related equipment, providing to the main Busduct.
a wide range of ratings to allow proper application for a
variety of installation conditions. The Busduct is designed,
manufactured and tested in accordance with IEC 62271- Enclosure/Housing
200:2003 • Indoor and outdoor ducts are totally enclosed
in non-ventilated housings
• Epoxy-powder coated aluminum or electro-
Busbars
galvanized plus stainless steel housings to meet
• 99.99% pure copper conductor is available in either tin a variety of environment conditions
or silver plating at the contact surface
• Busbars are equipped with heat-shrinkable sleeves
• Busbars are supported by flame-retardant epoxy
insulators
• Provision for internal or external earth bars
 46

Space Heaters/Thermostat Type Air-insulated

• As per customer requirements, space heaters or
thermostats are mounted inside the housings, Rated Current 400A to 5000A
spaced at approximately 2-metre intervals along Conductor Material Copper
the length of the Busduct run. These prevent Rated Operating Voltage 3.6 kV to 33 kV
condensation and detect temperature changes.
Peak Impulse Withstand

Accessories Voltage for 1 sec 50 kV – 195 kV

• A complete set of elbows, tees, terminations for Power Frequency With-
transformers and switchgear phase transpositions, stand Voltage for 1min 20 kV
expansion joints, wall flanges, flexible conductors,
System Frequency 50 Hz & 60 Hz
bushing boxes, bushing stud connectors and
terminal enclosures are available. Fault Level for 1 Sec 70 kA
Degree of Protection (IP) 54, 55 & 65
Enclosure GI+ Stainless Steel &
Aluminium
Enclosure Coating Epoxy
Enclosure Thickness 2 mm
Configuration 3P3W (with/without internal
earth
Straight Length
Joint Splice plate multiple Bolt
Insulator Material Heat Shrinkable Tube
Reference Standard IEC – 62271 – 200

Flatwise Elbow Edgewise Elbow

19
Modular / Final Distribution
Products
MCB - Miniature Circuit Breaker (10 kA & 6 kA)
RCCB - Residual Current Circuit Breaker
RCBO - RCCB with over Current Protection
Electronic RCBO in 1 Module
Isolators
Distribution Boards
49 MCB (10 kA) - Miniature Circuit Breaker

MCB is a vital protection device.

It is essential in every electrical
installation to safeguard both
your life and valuable property
True contact indication*1 Label Holder*1
Terminals suitable
upto 35 sq. mm. against short circuit & overload.
Cable

Salient Features
• Unique Patented Design gives both Label Holder and True Contact Indication facility for individual poles
• Conforms to EN/IEC 60898-1-2003
• Breaking capacity of 10 kA throughout the range
• Available in B curve in SP, DP & TP and C curve in SP, DP, TP & FP versions from 6A to 63A rating
• Patented terminal shutter design to increase safety level of operator while installation and maintenance. It also
avoids false insertion of cables
• Low watt loss - almost 50% of the values prescribed by IEC 60898-1-2003
• Trip free mechanism
• Design based on advanced current limiting hammer trip mechanism
• No Line-Load bias

Technical Specification
Current rating (In) 6, 10, 16, 20, 25, 32, 40, 50, 63A
Rated Voltage @ 50 Hz (Un) 240 / 415V
Short Circuit breaking capacity 10 kA according to EN / IEC - 60898-1-2003
Operational life (Mechanical) >1,00,000 operations
Operational life (Electrical) 10,000 operations
Energy limiting class 3
Operating temperature -50C to +550C
Calibration temperature 300C*
Termination Suitable for both Busbar & Cable, suitable upto
35 sq. mm cable
Impulse withstand voltage 6 kV
Degree of protection IP20
Rated frequency 50/60 Hz
Vibration resistance (In 'X' 'Y' 'Z' direction) 3g in frequency range of 10 to 55 Hz
Shock resistance (In 'X' 'Y' 'Z' direction) 20g with short duration of 10ms
Mounting position Horizontal / Vertical / Flat
Snap fixing on standard profile 35 x 7.5mm
Mounting
DIN Rail as per EN 50022

Watt Loss Electro Thermal Characteristics

Type of MCB No tripping current Tripping current
6 10 16 20 25 32 40 50 63
B Curve 1.13 x In 1.45 x In
1.36 1.8 1.8 2.49 3.52 3.4 3.75 5.17 5.93
C Curve 1.13 x In 1.45 x In
* MCBs calibrated at 50°C can also be supplied as per order.

Electro Magnetic Characteristics

Based on the tripping characteristics, MCBs are available in B and C curve to suit different types of applications:
B Curve: For protection of electrical circuits with equipment that does not cause surge current (lighting and
distribution circuits) Short circuit release is set to (3-5) In
C Curve: For protection of electrical circuits with equipment that causes surge current (Inductive loads and motor
circuits) Short circuit release is set to (5-10) In
 50
Overall Dimensions

36.5
ON

20.5

87.3
45

85

67
47°
OFF

30.5
39.5

31 5.5
36.5 17.5 35 52.5 70
41
43
59.6 1 - POLE 2 - POLE 3 - POLE 4 - POLE
69

Dimension in mm

i-t Characteristics
10000 10000
Time - Current Characteristics Time - Current Characteristics
Rated Current (In) < 32A Rated Current (In) > 32A

Ref. Calibration Temp.: 30 C

O
Ref. Calibration Temp.: 30 C
O

1000 1000
Tripping Time in Seconds

Tripping Time in Seconds

Ref. Standard: IS 8828 Ref. Standard: IS 8828
IEC 60898 IEC 60898

100 100

10 10

1 B C
1
B C
0.1 0.1
11.131.45 3 5 10 20 100 11.131.45 3 5 10 20 100
Multiples of Rated Current Multiples of Rated Current

Ordering Information
Current B-Curve Modules B-Curve C-Curve Modules C-Curve
Rating (In) 1 Mod = 17.5mm Cat. Nos. 1 Mod = 17.5mm Cat. Nos.
Single Pole (SP)
6A 1 BB10060B 1 BB10060C
10A 1 BB10100B 1 BB10100C
16A 1 BB10160B 1 BB10160C
20A 1 BB10200B 1 BB10200C
25A 1 BB10250B 1 BB10250C
32A 1 BB10320B 1 BB10320C
40A 1 BB10400B 1 BB10400C
50A 1 BB10500B 1 BB10500C
63A 1 BB10630B 1 BB10630C
Double Pole (DP)
6A 2 BB20060B 2 BB20060C
10A 2 BB20100B 2 BB20100C
16A 2 BB20160B 2 BB20160C
20A 2 BB20200B 2 BB20200C
25A 2 BB20250B 2 BB20250C
32A 2 BB20320B 2 BB20320C
40A 2 BB20400B 2 BB20400C
50A 2 BB20500B 2 BB20500C
63A 2 BB20630B 2 BB20630C
Triple Pole (TP)
6A 3 BB30060B 3 BB30060C
10A 3 BB30100B 3 BB30100C
16A 3 BB30160B 3 BB30160C
20A 3 BB30200B 3 BB30200C
25A 3 BB30250B 3 BB30250C
32A 3 BB30320B 3 BB30320C
40A 3 BB30400B 3 BB30400C
50A 3 BB30500B 3 BB30500C
63A 3 BB30630B 3 BB30630C
Four Pole (FP)
6A - - 4 BB40060C
10A - - 4 BB40100C
16A - - 4 BB40160C
20A - - 4 BB40200C
25A - - 4 BB40250C
32A - - 4 BB40320C
40A - - 4 BB40400C
50A - - 4 BB40500C
63A - - 4 BB40630C

* MCBs calibrated at 500C can also be supplied as per order

51 MCB (6 kA) - Miniature Circuit Breaker

MCB is a vital protection device. It is

essential in every electrical installation to
safeguard both your life and valuable
property against short circuit & overload.
Terminals suitable
True contact indication upto 35 sq. mm.
Cable

Salient Features
• Conforms to EN/IEC 60898-1-2003
• Breaking capacity of 6kA throughout the range
• Available in B curve in SP, DP & TP and C curve in SP, DP, TP & FP versions from 6A to 63A rating
• Low watt loss - almost 50% of the values prescribed by IEC 60898-1-2003
• Trip free mechanism
• Design based on advanced current limiting hammer trip principle
• No Line-Load bias

Technical Specification
Current rating (In) 6, 10, 16, 20, 25, 32, 40, 50, 63A
Rated Voltage @ 50 Hz (Un) 240 / 415V
Short Circuit breaking capacity 6 kA according to EN / IEC - 60898-1-2003
Operational life (Mechanical) >1,00,000 operations
Operational life (Electrical) 10,000 operations
Energy limiting class 3
Operating temperature -5°C to +55°C
Calibration temperature 30°C*

Termination Suitable for both Busbar & Cable, suitable upto

35 sq. mm cable
Impulse withstand voltage 4 kV
Degree of protection IP20
Rated frequency 50/60 Hz
Vibration resistance (In 'X' 'Y' 'Z' direction) 3g in frequency range of 10 to 55 Hz
Shock resistance (In 'X' 'Y' 'Z' direction) 20g with short duration of 10ms
Mounting position Horizontal / Vertical
Snap fixing on standard profile 35 x 7.5mm
Mounting
DIN Rail as per EN 50022

Watt Loss Electro Thermal Characteristics

6 10 16 20 25 32 40 50 63 Type of MCB No tripping current Tripping current

1.36 1.8 1.8 2.49 3.52 3.4 3.75 5.17 5.93 B Curve 1.13 x In 1.45 x In
C Curve 1.13 x In 1.45 x In
0
* MCBs calibrated at 50 C can also be supplied as per order.

Electro Magnetic Characteristics

Based on the tripping characteristics, MCBs are available in B and C curve to suit different types of applications:
B Curve: For protection of electrical circuits with equipment that does not cause surge current (lighting and
distribution circuits) Short circuit release is set to (3-5) In.
C Curve: For protection of electrical circuits with equipment that causes surge current (Inductive loads and motor
circuits) Short circuit release is set to (5-10) In.

* MCBs calibrated at 500C can also be supplied as per order

 52
Overall Dimensions

36.5
ON

20.5
470

67.0
87.3
85
45

OFF

30.5
39.5
5.5
31
17.5 35 52.5 70
36.5
41
43
1 - POLE 2 - POLE 3 - POLE 4 - POLE
59.6
69
Dimension in mm
i-t characteristics
10000 10000
Time - Current Characteristics Time - Current Characteristics
Rated Current (In) < 32A Rated Current (In) > 32A

Ref. Calibration Temp.: 30 C

O
Ref. Calibration Temp.: 30 C
O

1000 1000
Tripping Time in Seconds

Tripping Time in Seconds

Ref. Standard: IS 8828 Ref. Standard: IS 8828
IEC 60898 IEC 60898

100 100

10 10

B C
1 1
B C

0.1 0.1
11.131.45 3 5 10 20 100 11.131.45 3 5 10 20 100
Multiples of Rated Current Multiples of Rated Current

Ordering Information
Current B-Curve Modules B-Curve C-Curve Modules C-Curve
Rating (In) 1 Mod = 17.5mm Cat. Nos. 1 Mod = 17.5mm Cat. Nos.

Single Pole (SP)

6A 1 BA10060B 1 BA10060C
10A 1 BA10100B 1 BA10100C
16A 1 BA10160B 1 BA10160C
20A 1 BA10200B 1 BA10200C
25A 1 BA10250B 1 BA10250C
32A 1 BA10320B 1 BA10320C
40A 1 BA10400B 1 BA10400C
50A 1 BA10500B 1 BA10500C
63A 1 BA10630B 1 BA10630C
Double Pole (DP)
6A 2 BA20060B 2 BA20060C
10A 2 BA20100B 2 BA20100C
16A 2 BA20160B 2 BA20160C
20A 2 BA20200B 2 BA20200C
25A 2 BA20250B 2 BA20250C
32A 2 BA20320B 2 BA20320C
40A 2 BA20400B 2 BA20400C
50A 2 BA20500B 2 BA20500C
63A 2 BA20630B 2 BA20630C
Triple Pole (TP)
6A 3 BA30060B 3 BA30060C
10A 3 BA30100B 3 BA30100C
16A 3 BA30160B 3 BA30160C
20A 3 BA30200B 3 BA30200C
25A 3 BA30250B 3 BA30250C
32A 3 BA30320B 3 BA30320C
40A 3 BA30400B 3 BA30400C
50A 3 BA30500B 3 BA30500C
63A 3 BA30630B 3 BA30630C
Four Pole (FP)
6A - - 4 BA40060C
10A - - 4 BA40100C
16A - - 4 BA40160C
20A - - 4 BA40200C
25A - - 4 BA40250C
32A - - 4 BA40320C
40A - - 4 BA40400C
50A - - 4 BA40500C
63A - - 4 BA40630C
53 RCCB - Residual Current Circuit Breaker

RCCB provides protection

against electrical shocks and
earth leakage.

Salient Features
• Conforms to EN/IEC 61008
• Trips within 30 ms at rated residual current
• Operating temperature -50C to + 550C
• Repeat accuracy +5%
• 10kA short circuit withstand capacity
• Type AC for which tripping is ensured for residual sinusoidal alternating currents, whether suddenly
applied or slowly rising, marked with the symbol
• RCCBs are not suitable for use on DC systems and unearthed networks
• Tripper RCCBs are available in DP and FP versions from 25 to 100A ratings with 30mA or 100mA or
300mA or 500mA sensitivity
• Truly current operated - operation even at nominal 1 volt
• Operates on Core Balance Current Transformer (CBCT) principle
• Operation even in case of neutral failure
• Neutral advance mechanism
• Dual Termination (Cable & Busbar) possible at both side
• Combi-head screws allow all types of screw drivers to be used

Technical Specification
Current rating (In) 25, 40, 63, 100A

Rated sensitivity (IDn) 30mA 100mA 300mA

Personal protection Limited personal Building fire

Application
domestic installation protection

Rated Voltage @ 50 Hz* (Un) 240V 415V 240V 415V 240V 415V

No. of poles DP (SP+N) FP (TP+N) DP (SP+N) FP (TP+N) DP (SP+N) FP (TP+N)

10V 333 W 100 W 33 W

Max. earth resistance
24V 800 W 240 W 80 W

Degree of protection IP20

Backup fuse 63A quick break

Max. rating 50A delayed break

Max. diameter of terminals 50mm2

Operational life > 20,000 operations (at rated current)

Operating temperature -50C to +550C

*other frequencies on request

 54
Working Principle Human bodys reaction to electric shock
Electrical shocks passing through the human body, affect its
internal nervous system. This causes the body to react to the
passage of current as follows:

3mA : A tingling sensation is felt.

10-15mA : Muscle spasm and tightening occurs.
20-30mA : The heart may fibrillate; severe shock is felt.
>50mA : Lethal. Fibrillation of the heart occurs.

Overall Dimensions
33.5 35 71
5.5
17.5 52.5
17.5
ON

42.5
17.5

L1 N L1 L3 L5 N
85
900

35.5

ON
45.3
67

45.3
67

85
45
OFF

OFF

L2 N

43.5
60 L2 L4 L6 N

71.1 17.5 15.2

2 - POLE 4 - POLE

Dimension in mm
Ordering Information
Current Modules
Sensitivity Cat. Nos.
Rating (In) 1 Mod = 17.5mm

Double Pole (DP)

30 mA 2 BC202503
25A 100 mA 2 BC202510
300 mA 2 BC202530
30 mA 2 BC204003
40A 100 mA 2 BC204010
300 mA 2 BC204030
30 mA 2 BC206303
63A 100 mA 2 BC206310
300 mA 2 BC206330
30 mA 2 BC210003
100A 100 mA 2 BC210010
300 mA 2 BC210030

Four Pole (FP)

30 mA 4 BC402503
25A 100 mA 4 BC402510
300 mA 4 BC402530
30 mA 4 BC404003
40A 100 mA 4 BC404010
300 mA 4 BC404030
30 mA 4 BC406303
63A 100 mA 4 BC406310
300 mA 4 BC406330
30 mA 4 BC410003
100A 100 mA 4 BC410010
300 mA 4 BC410030
55 RCBO with over Current Protection

The RCCB+MCB combination in

RCBO provides 3 in 1 protection
against Earth Leakage, Short Circuit
and Overload.

Salient Features
• Conforms to EN / IEC 61009-1
• Breaking capacity 6 kA (C-Curve)
• Conformity
• Truly current operated - operation even at nominal 1 volt
• Precise manufacturing to avoid nuisance tripping
• Operation even incase of neutral failure i.e. it operates if leakage occurs even when incoming neutral is
disconnected
• Neutral advance mechanism
• Offers 3 in 1 Protection - Earth Leakage, Overload and Short Circuit
• Avoids excessive metering due to leakage
• Ensures 100% presence of neutral while making carrying & breaking operation of EL+MCB

Technical Specifications
Current rating (In) 6, 10, 16, 20, 25, 32, 40, 50, 63A
Rated sensitivity (IDn) 30mA 100mA 300mA

Personal protection 2 Limited personal Building fire

Application
domestic installation protection

Rated Voltage @ 50 Hz* (Un) 240V 415V DP (SP+N) FP (TP+N) 240V 415V
No. of poles DP (SP+N) FP (TP+N) 100 W DP (SP+N) FP (TP+N)
10V 333 W 240 W 33 W
Max. earth resistance
24V 800 W 80 W
Degree of protection IP 0
Short Circuit breaking capacity 6 kA
Backup fuse 63A quick break
Max. rating 50A delayed break
Max. diameter of terminals 25mm2
Operational life > 20,000 operations (at rated current)
Operating temperature -50C to +550C
* other frequencies on request

Overall Dimensions
63.50

15
82.50
69.50

T T
82.50
45
49

36.50

5.50 70
37.50 105
68
2 - POLE 4 - POLE
Dimension in mm
 56
i-t characteristics
10000 10000
Time - Current Characteristics Time - Current Characteristics

Rated Current (In) < 32A Rated Current (In) > 32A
O
O
Ref. Calibration Temp.: 30 C Ref. Calibration Temp.: 30 C
1000 1000
Ref. Standard: IS 8828 Ref. Standard: IS 8828
IEC 60898 IEC 60898

Tripping Time in Seconds

Tripping Time in Seconds

100 100

10 10

1 1

B C B C

0.1 0.1
11.131.45 3 5 10 20 100 1 1.13 1.45 3 5 10 20 100
Multiples of Rated Current Multiples of Rated Current

Ordering Information

Double Pole (DP) Four Pole (FP)

Modules Modules
Current
Sensitivity 1 Mod = Cat. Nos. 1 Mod = Cat. Nos.
Rating (In)
17.5mm 17.5mm

6 4 CB90001OOTO 6 CB90002OOTO
10 4 CB90001OOVO 6 CB90002OOVO
16 4 CB90001OOBO 6 CB90002OOBO
20 4 CB90001OOCO 6 CB90002OOCO
30mA
25 4 CB90001OODO 6 CB90002OODO
32 4 CB90001OOEO 6 CB90002OOEO
40 4 CB90001OOFO 6 CB90002OOFO
63 4 CB90001OOHO 6 CB90002OOHO

6 4 CB90003OOTO 6 CB90004OOTO
10 4 CB90003OOVO 6 CB90004OOVO
16 4 CB90003OOBO 6 CB90004OOBO
20 4 CB90003OOCO 6 CB90004OOCO
100mA
25 4 CB90003OODO 6 CB90004OODO
32 4 CB90003OOEO 6 CB90004OOEO
40 4 CB90003OOFO 6 CB90004OOFO
63 4 CB90003OOHO 6 CB90004OOHO

6 4 CB90005OOTO 6 CB90006OOTO
10 4 CB90005OOVO 6 CB90006OOVO
16 4 CB90005OOBO 6 CB90006OOBO
20 4 CB90005OOCO 6 CB90006OOCO
300mA
25 4 CB90005OODO 6 CB90006OODO
32 4 CB90005OOEO 6 CB90006OOEO
40 4 CB90005OOFO 6 CB90006OOFO
63 4 CB90005OOHO 6 CB90006OOHO
57 Electronic RCBO in 1 Module

The RCCB+MCB combination in

RCBO provides 3 in 1 protection
against Earth Leakage, Short
Circuit and Overload

Salient Features
• Confirms to IEC 61009-1
• Breaking capacity 10 kA in C-curve
• Available in 6A to 63A range with 10kA Breaking Capacity
• Tripping characteristics ‘C’ Curve
• Provides true contact position indication
• Incorporates a filtering circuit preventing the risk of unwanted tripping due to transient voltages
and transient currents
• Provides protection against earth leakage even in case of failure of neutral
• Offers 3 in 1 Protection - Earth Leakage, Overload and Short Circuit
• Precise manufacturing to avoid nuisance tripping
• Operation even in case of neutral failure i.e. it operates if leakage occurs even
when incoming neutral is snapped

Technical Specification
Current rating (In) 6, 10, 16, 20, 25, 32, 40A, 50A*, 63A*
Rated sensitivity (IDn) 30mA 100mA 300mA

Personal protection Limited personal Building fire

Application
domestic installation protection

Rated Voltage @ 50 Hz* (Un) 240V 240V 240V

Degree of protection IP2X
Short Circuit breaking capacity 10 kA (As per IEC 60898)
25 sq. mm (Supply)
Terminal capacity
16 sq. mm (Load)
Electrical life 10,000 operations rated current
Operating temperature -50C to +550C
Flaying neutral 700-800 mm

Overall Dimensions
H

Dimension in mm
W
 58
i-t characteristics
10000 10000
Time - Current Characteristics Time - Current Characteristics
Rated Current (In) < 32 A Rated Current (In) > 32 A
O
O Ref. Calibration Temp.: 30 C
1000
Ref. Calibration Temp.: 30 C 1000 Ref. Standard : IS 8828
Ref. Standard : IS 8828
IEC 60898 IEC 60898

Tripping Time in Seconds

Tripping Time in Seconds

100 100

10 10

1 1

C C

0.1 0.1
1 1.13 1.45 3 5 10 20 100 1 1.13 1.45 3 5 10 20 100

Multiples of Rated Current Multiples of Rated Current

Ordering Information

Current
Sensitivity Rating (In) Cat. Nos.

6 CB90007OOTO
10 CB90007OOVO
16 CB90007OOBO
20 CB90007OOCO
30mA 25 CB90007OODO
32 CB90007OOEO
40 CB90007OOFO
50* CB90007OOGO
63* CB90007OOHO
6 CB90008OOTO
10 CB90008OOVO
16 CB90008OOBO
20 CB90008OOCO
100mA 25 CB90008OODO
32 CB90008OOEO
40 CB90008OOFO
50* CB90008OOGO
63* CB90008OOHO
6 CB90009OOTO
10 CB90009OOVO
16 CB90009OOBO
20 CB90009OOCO
25 CB90009OODO
300mA
32 CB90009OOEO
40 CB90009OOFO
50* CB90009OOGO
63* CB90009OOHO
* For product availability please contact nearest L&T office.
59 Isolators

Isolators are used in electrical installation to

MAKE, CARRY and BREAK circuit current.
The Isolator ensures that there will be no
current at the load side even if impulse
voltage appears when the Isolator is OFF.

Salient Features
• Conforms to EN/IEC 60947-3
• Suitable for AC22-A and AC22-B utilization category
• conformity and certified
• Available in DP, TP and FP versions in 40A, 63A, 80A & 100A ratings
• Two position DIN rail clip makes easy mounting in distribution boards
• Finger proof terminals - IP20
• Combihead screws allow all types of screw drivers to be used. Body made of fire retardant material
• True contact indication by a separate window with Red & Green colour band in addition to ON/OFF text printed
on knob. Dual Termination (Cable & Busbar) possible at incomer side

Technical Specification
Operational Voltage (50 Hz) 240 - 415V

Insulation Voltage 500V

Impulse withstand voltage 4kV

Duty Uninterrupted duty

Short Time withstand capacity 756A, 1sec

Short Circuit making capacity 1 kA

Utilization category AC22-A & AC22-B

 60
Overall Dimensions

36.5
ON

20.5

67.0
87.3
470

85
45

OFF

30.5
39.5

31 5.5
35 52.5 70
36.5
41
43 2 - POLE 3 - POLE 4 - POLE

59.6
Dimension in mm
69

Ordering Information

Current Modules
Rating (In) 1 Mod = 17.5mm Cat. Nos.

Double Pole (DP)

40 2 BE204000
63 2 BE206300
80 2 BE208000
100 2 BE210000

Triple Pole (TP)

40 3 BE304000
63 3 BE306300
80 3 BE308000
100 3 BE310000

Four Pole (FP)

40 4 BE404000
63 4 BE406300
80 4 BE408000
100 4 BE410000
61 Distribution Boards - SPN

Distribution boards provides safe & efficient

distribution of electrical power.

Salient Features
• Conforms to IEC60439 - I & III
• Aesthetically superior to suit the interiors of buildings and can be supplied in different colours for bulk requirements
• Distribution boards are suitable for flush and surface mounting
• Ready to use DBs - provided with 100A phase busbar, Neutral bar, Earth bars and inter connecting wires as standard
• Provided with removable top and bottom gland plates with adequate knockout for easy wiring
• For bottom entry, Neutral bar can be shifted to bottom for comfortable wiring
• DBs are made from CRCA sheet steel in standard thickness of 1.2mm, thickness of 1.5mm, 2.0mm is also available
on request
• Color - RAL 9002, Powder coated
Technical Specification
Range SPN
Versions Single door & Double door
Voltage rating 240 / 415V AC
Mounting Surface / Flush
Single door - IP30
Degree of protection Double door - IP43
Operating temperature -50C to +550C
Rating 100A
Provided with 100A copper busbar, wireset, earthbar, neutral bar,
blanking plate, circuit identification labels as standard accessories.

Total no of modules
Description Cat. Nos.
1 Mod = 17.5mm

SPN DB - Single Door

4 Mod 2 Way 4 YBH104SDB
6 Mod 4 Way 6 YBH106SDB
8 Mod 6 Way 8 YBH108SDB
12 Mod 10 Way 12 YBH112SDB
16 Mod 14 Way 16 YBH116SDB
SPN DB - Double Door
4 Mod 2 Way 4 YBH104DDB
6 Mod 4 Way 6 YBH106DDB
8 Mod 6 Way 8 YBH108DDB
12 Mod 10 Way 12 YBH112DDB
16 Mod 14 Way 16 YBH116DDB

Overall Dimensions
SPN Single Door DBs
G

Cat. Nos. A B C D E F G
YBH104SDB 137 185 147 195 65 74 110
YBH106SDB 173 185 183 195 65 110 110 C E F
YBH108SDB 209 185 291 195 65 132 110 A

YBH112SDB 280 185 290 195 65 203 110

YBH116SDB 355 185 365 195 65 278 110

SPN Double Door DBs

Ø26,‘K’out
Both Side

G
D

Cat. Nos. A B C D E F G
YBH104DDB 145 205 165 225 82 70 95
YBH106DDB 180 205 200 225 82 105 95
F
YBH108DDB 220 205 240 225 82 145 95 C E A

YBH112DDB 295 205 315 225 82 220 95 Ø26, ‘K’ out

‘A’ Nos.

YBH116DDB 365 205 385 225 82 290 95 Dimension in mm

 Distribution Boards - VTPN (250A) 62

Vertical Distribution boards provides safe

& efficient distribution of electrical current
up to 250A.

Salient Features
• Conforms to IEC 60439 - I & III
• 4 way to 24 way enclosures in fine texture finish powder coated with RAL 9002
• Choice of Metal / Glazed (transparent) door in double door DBs
• Removable door, frame, front plate & gland plate for ease of installation & maintenance
• Fully insulated joint-free vertical busbar assembly rated for 250Amp for each phase
• DB rated for short circuit withstand current of 10kA for 1 sec
• Provision to mount DN (D-Sine) MCCB (TP/FP upto 250A) as incomer
• Provision to mount SP & TP MCBs as outgoing
• DBs are made from CRCA sheet steel in standard thickness of 1.2mm, thickness of
1.5mm, 2.0mm is also available on request

Technical Specification
Range VTPN - 250A
Versions Single door & Double door
Voltage rating 250 / 450V AC
Mounting Surface / Flush
Single door - IP30
Degree of protection
Double door - IP43
Operating temperature -50C to +550C

Provided with 250A copper busbar PAN assembly, neutral wire, earthbar,
neutral bar, blanking plate, circuit identification labels as standard accessories

Description Modules Cat. Nos.

VTPN (250A) - Double Door

4 Way * MCCB+12 BVH304DDBQ

6 Way * MCCB+18 BVH306DDBQ
8 Way * MCCB+24 BVH308DDBQ
12 Way * MCCB+36 BVH312DDBQ
16 Way * MCCB+38 BVH316DDBQ
18 Way * MCCB+54 BVH318DDBQ
24 Way * MCCB+72 BVH324DDBQ

* DN (D-Sine) MCCB incomer TP/FP upto 250A (Frame DN2)

Overall Dimensions
4CBN140C
240/415V
10000A

L&T
4CBN140C
240/415V
10000A

L&T

A B C
4CBN140C

4CBN140C
240/415V

240/415V

Cat. Nos.
10000A

10000A
L&T

L&T
4CBN140C
240/415V
10000A

L&T
4CBN140C
240/415V
10000A

L&T
4CBN140C

4CBN140C
240/415V

240/415V
10000A

10000A
L&T

L&T
4CBN140C

4CBN140C
240/415V
240/415V

10000A
10000A
L&T

L&T
4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A
L&T

L&T
4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A

L&T
L&T

BVH304DDBQ 650 550 670

4CBN140C
240/415V
10000A

L&T
4CBN140C
240/415V
10000A

L&T
4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A

L&T
L&T

4CBN140C
240/415V
10000A

L&T
4CBN140C
240/415V
10000A

L&T
4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A

L&T
L&T

BVH306DDBQ 700 600 720

4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A

L&T
L&T

4CBN140C
4CBN140C

240/415V
240/415V

10000A
10000A

L&T
L&T
4CBN140C

4CBN140C
240/415V

240/415V
10000A

10000A
L&T

L&T
C

BVH308DDBQ 755 655 775

BVH312DDBQ 860 760 840
BVH316DDBQ 970 870 990
BVH318DDBQ 1020 920 1040
BVH324DDBQ 1180 1080 1200 7 350
470 40 450
130 5

Dimension in mm
63 Distribution Boards - VTPN (125A)

Vertical Distribution boards provides safe &

efficient distribution of electrical current up
to 125A.

Salient Features
• Conforms to IEC 60439 - I & III
• 4 way to 24 way enclosures in fine texture finish powder coated with RAL 9002
• Choice of Metal / Glazed (transparent) door in double door DBs
• Removable door, frame, front plate & gland plate for ease of installation & maintenance
• Fully insulated joint-free vertical busbar assembly rated for 125A for each phase
• DB rated for short circuit withstand current of 10kA for 1 sec and 20kA for 0.2 sec
• Provision to mount upto 8 modules as incomer
• Provision to mount SP & TP MCBs as outgoing
• DBs are made from CRCA sheet steel in standard thickness of 1.2mm, thickness of
1.5mm, 2.0mm is also available on request

Technical Specification
Range VTPN - 125A
Versions Single door & Double door
Voltage rating 250 / 450V AC
Mounting Surface / Flush
Single door - IP30
Degree of protection
Double door - IP43
Operating temperature -50C to +550C

Provided with 125A copper busbar PAN assembly, neutral wire, earthbar,
neutral bar, blanking plate, circuit identification labels as standard accessories.

Description Modules Cat. Nos.

VTPN (125A) - Double Door

4 Way 8+12 BVL304DDBQ

6 Way 8+18 BVL306DDBQ
8 Way 8+24 BVL308DDBQ
12 Way 8+36 BVL312DDBQ
16 Way 8+38 BVL316DDBQ
18 Way 8+54 BVL318DDBQ
24 Way 8+72 BVL324DDBQ

Overall Dimensions

Cat. Nos. Way A B C

1000A
240/415V
4CBN140C

C041NBC4
V514/042
A0001
1000A
240/415V
4CBN140C

C041NBC4
V514/042
A0001
1000A
240/415V
4CBN140C

C041NBC4
V514/042
A0001

BVL304DDBQ 4 500 400 520

1000A
240/415V
4CBN140C

C041NBC4
V514/042
A0001

6 550 450 570

A
B

BVL306DDBQ
C

BVL308DDBQ 8 600 500 620 40 A, 300MA

IEC-61008-1,lD
UT-240V~
n=0.1A, UN-240/415V~
,IM=1000A, INC=6000A
4CBN140C
240/415V
1000A
4CBN140C
240/415V
1000A
4CBN140C
240/415V
1000A
4CBN140C
240/415V
1000A

2
TEST ONCE
A MONTH
Bc406310

BVL312DDBQ 12 700 600 720

BVL316DDBQ 16 800 700 820 7

350
40
BVL318DDBQ 18 900 800 920 470 118 5 450

Ø26 K’out As 4 Nos Ø26/32 K’out 3 Nos

At Top & Bottom At Top & Bottom

Dimension in mm
 Distribution Boards - VTPN with Split Busbar 64

Vertical TPN Distribution boards

with spilt busbar toseparate
Lighting Load and Power Load.

Salient Features
• Conforms to IEC 60439 - I & II
• Texture finish powder coated with RAL 9002 shade
• Choice of Metal / Glazed (transparent) door in double door DBs
• Removable door, frame, front plate & gland plate for ease of installation & maintenance
• Fully insulated joint-free two seperate vertical busbar assemblies rated for 125Amp for each phase
• Provision to mount upto 13 module as incomer
• Provision to mount SP & TP MCBs as outgoing
• DBs rated for short circuit withstand current of 10kA for 1 sec
• DBs are made from CRCA sheet steel in standard thickness of 1.2mm, thickness of
1.5mm, 2.0mm is also available on request
Technical Specification
Range VTPN with Split Busbar
Versions Single door & Double door
Voltage rating 250 / 450V AC
Mounting Surface / Flush
Single door - IP30
Degree of protection
Double door - IP43
Operating temperature -50C to +550C

Provided with 2 separate 125A copper busbar PAN assembly, neutral wire, earthbar, neutral bar,
blanking plate, circuit identification labels as standard accessories.

No. of ways
Modules Cat. Nos.
Section I Section II
2 2 13+6+6 BVS0202DDBB
4 2 13+12+6 BVS0402DDBB
4 4 13+12+12 BVS0404DDBB
6 4 13+18+12 BVS0604DDBB
6 6 13+18+18 BVS0606DDBB
8 4 13+24+12 BVS0804DDBB
8 6 13+24+18 BVS0806DDBB
8 8 13+24+24 BVS0808DDBB
12 4 13+36+12 BVS1204DDBB

Overall Dimensions
Side kout
Cat. Nos. A B C
32/26
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A

BVS0202DDBB 550 450 570 4

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A
C

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A

BVS0402DDBB 605 505 625 6

10000A
240/415V
4CBN140C
4CBN140C
240/415V
10000A
4CBN140C

10000A
240/415V
4CBN140C
240/415V
10000A

BVS0404DDBB 655 555 675 4 4CBN140C

240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A
4CBN140C
240/415V
10000A

BVS0604DDBB 710 610 730 10

BVS0606DDBB 765 665 785 12
7 350
BVS0804DDBB 765 665 785 12 470 40 450
118 5
BVS0806DDBB 815 715 835 14
BVS0808DDBB 870 770 890 16
BVS1204DDBB 870 770 890 16 Dimension in mm
Onload Changeover Switches
- Changeover Switches
67 C-Line - Changeover Switches

C-Line offers you a unique series of changeover Switches combining compactness with high performance &
Customer convenience, thus, making C-line a state-of-the-art product in changeover technology.
The C-line range covers ratings from 63A to 2000A in 6 frame sizes. These changeover switches are available in
open execution, Sheet steel enclosure, fused version (suitable for DIN type fuse - link) and motorised version.

SS Enclosure inclusive of cable gland box

Field-convertible fuse changeover switch

Motorised changeover switch

Basic Function of Changeover Switches

Onload Changeover S-D has 3 Stable Positions as Defined Below

POSITION l POSITION O POSITION ll

Switch is in ON position Switch is in OFF position and outgoing Switch is in ON position
with normal supply terminals are isolated from both supplies with alternate supply
available at the (normal and alternate supplies) available at the
outgoing terminals. outgoing terminals.

Onload Changeover S-D consists of two separate sets of terminals for incoming supplies and a set of output
terminals to connect the common load. Thus, changeover switch ensures continuity of supply to the load by
alternating between normal and alternate supply.
 68

Product Range
Onload Changeover S-Ds are available from 63 A to 2000 A. The range is covered through 6 frames as shown
below.

Frame No. Ratings (A)

I 63 100

II 125 160 200

III 250 315

IV 400 630

V 630 800 1000

VI 1250 1600 2000*

*Available on request.

Versions
Changeover
Changeover S-D, which can be commissioned in panels are of open
S-D suitable
execution type and provide IP20 protection from front. Range 63A to 2000A.
for open
execution

Changeover Changeover S-Ds are available in sheet steel enclosure with adequate
S-D in SS space for cable terminations so that additional cable entry boxes are not
enclosures required. Enclosure provides IP54 protection. Range 63A to 1000A.

Changeover The Changeover S-Ds for open execution can be easily converted to fused
S-D suitable version at site by using fuse conversion kit. It is suitable for cylindrical &
for HRC fuses knife type (DIN) fuse links. Range 63A to 800A.

Motorised
Onload changeover S-Ds are available in motorised version with control
Changeover
voltage 240 V ac. Range 125A to 2000A.
S-D
69
Manual Changeover Product Feature

2 6 4
8

7
9

5
7

Complete Touch Proof Design, Thanks to Terminal Shroud, Source Separator

& Inter-phase Barriers.

2. Terminal shroud 3. Source separator 4. Inter-phase barriers

9. Auxiliary Contact Kit

It consists two sets of changeover contacts one for each
S-D. This kit is pre-wired with terminal blocks and can be
fitted at the site without increasing overall dimension.

6. Staggered Terminals
The C-line Changeover S-Ds are designed to have staggered
terminal arrangement for top and bottom S-Ds. It provides
clear access to all terminals from the front, ensuring ease of
termination.
All terminal joints can be easily inspected without the need of
removing termination of top S-D.
 70
Manual Changeover Product Feature

7. Interchangeable Dual Shaft Position with Site

Convertibility
Patented dual dead center mechanism enables the user to
option between central or side shaft positions for operating
handle. This can be easily converted on site as required
(125A to 1000A).

Changeover Switch with Direct Handle

Compact direct handle 63A and 100A changeover switch suitable for double door DB. It occupies only 10 Mod
space (45 x 140 cut-out).

Fuse Changeover Switch

The C-line Changeover S-Ds for open execution can be easily converted to fused version at site by using fuse
conversion kit with no load line biasing. It provides the benefits of overload and short circuit protection through the
fastest switching device-fuse, and is suitable for cylindrical & knife type (DIN) fuse links.

+ =
71
Motorised Changeover Product Features

4 1

3
7
6

5 2

3. Manual Override
Manual operation of motorised changeover switch is also
feasible through the manual override feature.
As a safety feature, the control supply of motorised kit (EOM) is
automatically cut off during the insertion of handle.

5. Auxiliary Contacts
It consists two sets of changeover contacts one for each
S-D. It is prewired and prefitted in motorised changeover
switch.

6. Pad Locking
Provision for padlocking in OFF position with three
padlocks of Ø5 to Ø7. Padlocking possible in both auto and
manual mode.
 72
Motorised Changeover Product Features

7. Fuse Protection
Inbuilt glass fuse of 5 x 20 size protects the motorised kit
(EOM) during abnormalities. Also, spare fuse holder has
been provided for storage of fuse.

Compact Design
No change in H x W x D of motorised changeover switch and manual changeover switch

Universal Mounting
Changeover switches offers a distinctive feature to mount changeover in different quadrants.

Accessories
Automatic Source Transfer Solution

Illuminated Push button UV/OV based AST AuxC-1000L Controller

assembly Controller with
with Wire harness with Wire Harness Wire Harness
73 74

Technical Specification Frame 1 Frame 2 Frame 3 Frame 4 Frame 5 Frame 6

Rating (A) Unit 63A 100A 125A 160A 200A 250A 315A 400A 630A 630A 800A 1000A 1250A 1600A 2000A

Reference Standards IS / IEC 60947-3, EN 60947-3

Type designation CO1 - 63 CO1 - 100 CO2 - 125 CO2 - 160 CO2 - 200 CO3 - 250 CO3 - 315 CO4 - 400 CO4 - 630 CO5 - 630 CO5 - 800 CO5 - 1000 CO6 - 1250 CO6 - 1600 CO6 - 2000
No. of Poles 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole 4 Pole
Rated operational voltage (Ue) (V) 415 415 415 415 415 415 415 415 415 415 415 415 415 415 415
Rated frequency (Hz) 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60 50 / 60
Rated impulse withstand voltage (Uimp) (kV) 8 8 12 12 12 12 12 12 12 12 12 12 12 12 12
Pollution degree 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
0
Conventional free air thermal current, lth at 40 C (A) 63 100 125 160 200 250 315 400 630 630 800 1000 1250 1600 2000
Conventional enclosed thermal current, lthe at 400C (A) 63 100 125 160 200 250 315 400 630 630 800 1000 1250 1600 2000
Rated operational current, le AC-21A# / AC-22A# / AC-23A (A) 63 100 125 160 200 250 315 400 630 630 800 1000 1250 1600 /1250 2000#/1250
#

Rated operational power for AC-23A* (kW) 37 50 65 85 100 132 160 225 315 315 400 450 710 710 710
Rated breaking capacity for AC-23A (A) 504 800 1000 1280 1600 2000 2520 3200 5040 5040 6400 8000 10000 10000 10000
Rated making capacity for AC-23A (A) 630 1000 1250 1600 2000 2500 3150 4000 6300 6300 8000 10000 12500 12500 12500
1 sec (kA rms) 4 5 8 8 10 16 18 22 26 35 50 50 50 50 50
Short time withstand, lcw
0.2 sec (kA rms) 7 10 18 18 18 28 28 35 35 70 85 85 85 85 85
Short-circuit making capacity, lcm (kA peak) 5.9 7.7 14 14 17 32 36 46 55 73.5 105 105 105 105 105
Mechanical (O-I-O-II-O cycle) 20000 20000 16000 16000 16000 16000 16000 10000 10000 10000 10000 10000 10000 10000 10000
Endurance (category A)
Electrical (O-I-O-II-O cycle) 3000 3000 2000 2000 2000 2000 2000 2000 2000 2000 1000 1000 1000 1000 500
Type and size of fuse DIN/Cylin 14 x 51 000 00 00 1 1 2 3 3
NA NA NA NA NA NA
Rated fused short-circuit current at 415 V, 50/60 Hz DIN/Cylin (kA rms) 80 100 100 100 100 100 100 100 100
Motorised Kit
Rated control voltage (V) 240 V ac 240 V ac 240 V ac 240 V ac 240 V ac
Control voltage range (%) 85% - 110% 85% - 110% 85% - 110% 85% - 110% 85% - 110%
Pollution degree 3 3 3 3 3
Operating temperature (°C) -5 to + 55 -5 to + 55 -5 to + 55 -5 to + 55 -5 to + 55
Ingress protection (from front) IP30 IP30 IP30 IP30 IP30
Max. current at 240 V ac (A) 2 2 2 2 2
O-I / I-O (sec) 0.5 0.6 0.7 0.7 0.7
Operating time (min)
I-II / II-I (sec) 1.4 1.4 1.4 1.4 1.4
Black out time (sec) 1.4 1.4 1.4 1.4 1.4
Control glass fuse current rating (240 V ac) (A) 1.25 1 1.25 1.25 1.25
Termination Capacity
Maximum Al. cable with lug (sq mm) 25 25 95 95 150 185 240 2 x 300 2 x 300 2 x 400 2 x 400 2 x 400 2 x 12 x 63 4 x 8 x 50 3 x 10 x 100
Maximum link width (mm) 16 16 30 30 30 40 40 50 50 60 60 60 80 80 100
Maximum link thickness (mm) 2 2.5 5 5 6 8 8 8 2x8 2 x 10 2 x 10 2 x 10 3 x 12 3 x 12 3 x 12
Termination tightening torque (N-m) 4.5 4.5 10 10 20 20 20 27 27 35 35 35 55 55 55
Operating torque center / side operating (N-m) 4.5 4.5 10 / 13 10 / 13 10 / 13 20 / 25 20 / 25 28 / 32 28 / 32 30 / 40 30 / 40 30 / 40 55 55 55
Weight (without accessories) (Kg) 2 2.5 4 4 4.5 6.5 7 14 14.5 20 22 22 52 57 75
*These values are for 4 pole squirrel cage induction motors and are provided only for guidance and may vary as per the motor manufacturer
# Rated operational current, le AC-21A / AC-22A
Type cylindrical fuse
Switches & Fuses
FNX Switch-Disconnector - Fuse
FN Switch-Disconnector
HRC Fuse-links
77 FNX Switch-Disconnector - Fuse

Versatile handle
(patented)
1

Stationary fuse holders Terminal shrouds &

External terminal shrouds
6
9

Telescopic shaft

2
Positive ON / OFF
indication

5
Generous terminal
capacity
8
Large ground
clearance
3
4
Mechanism
Flexibility in
mounting