Source changeover systems

Low Voltage 

Source 

changeover 

systems 

Compact NSX100-630, Compact NS630b-1600, 

Interpact, Masterpact 

Catalogue 

2012

Efficient energy 

management and 

continuity of service with 

source-changeover system 

To ensure continuity of service for critical applications, 

LV electrical installations need to be connected to 

at least two independent power sources: 

1 

2 

A normal 

source (N) 

And a replacement 

source (R)* 

used to supply energy to the installation 

when the normal source unavailable, or, 

for instance, when its quality and/or availability 

is no longer guaranteed. 

The source-changeover 

system switches the 

load (partly or fully) 

between these 

two sources. 

A few basics on source-changeover systems 

> A source-changeover 

system can be 

automated to manage 

transfers according 

to external 

conditions. 

> Switching from 

a main power source to 

a replacement source 

can be performed 

either manually or 

automatically. 

> A source-changeover 

system comprises 

circuit breakers, 

switch-disconnectors 

or contactors. 

* The replacement source (R) can be: a second power source (with possibly different 

characteristics from the normal source) or an electrical generator 

I

II 

3ways 

1 

2 

3 

to switch the load to meet 

your needs 

Manual source-changeover system 

(or MTSE: Manual Transfer Switching Equipment) 

The simplest way to switch the load. It is controlled manually by an operator. 

The time required to switch from the ‘N’ source to ‘R’ source can vary. 

System 

2 or 3 mechanically interlocked manuallyoperated 

circuit breakers or 2 switchdisconnectors. 

Automatic source-changeover system 

(or ATSE: Automatic Transfer Switching Equipment) 

An automatic controller may be added to a remote-operated source-changeover system. It is 

possible to automatically control source transfer according to programmed (dedicated controllers) or 

programmable (PLC) operating modes. These solutions ensure optimum energy management. 

System 

2 or 3 circuit breakers that may have different 

configurations, linked by an electrical interlocking 

system. A mechanical interlocking system 

protects against electrical malfunctions or 

incorrect manual operations, with an automatic 

control system (dedicated controllers or PLC). 

Applications 

Buildings and infrastructure where the need 

for continuity of service is significant but not 

a priority: offices, small and medium-sized 

businesses. 

Remote-operated source-changeover system 

(or RTSE: Remote Transfer Switching Equipment) 

The most commonly used system for devices with high ratings. No direct human 

intervention is required. Source-changeover is controlled electrically. 

System 

2 or 3 circuit breakers that may have different 

configurations, linked by an electrical 

interlocking system. In addition, a mechanical 

interlocking system protects against electrical 

malfunctions or incorrect manual operations. 

Applications 

Industry (assembly lines, engine rooms on 

ships, critical auxiliaries in thermal 

powerstations, etc.); Infrastructure (port and 

railway installations, runway lighting systems, 

control systems on military sites, etc.). 

Applications 

Commercial and service sector (operating 

rooms in hospitals, safety systems for 

buildings, computer rooms for banks and 

insurance companies, lighting and emergency 

lighting systems in malls, etc.), industry and 

infrastructure.

Whatever the system, 

you benefit from our expertise! 

> MTSE range 

Interpact 

From 40 A to 630 A 

> RTSE range 

Compact NSX 


> ATSE range 

Masterpact NT / NW 

From 630 A to 6300 A 

UA Controller Compact NSX 


Our expertise and support come together 

with the source-changeover system you 

choose for your LV electrical installation. 

With Interpact INS, Compact NSX 

and Masterpact NT and NW, we offer 

a complete range of solutions, designed 

around key values: 

Maximum continuity 

of service 

> Energy availability is ensured whatever 

the external requirements (e.g. high 

power demand). 

> Maintenance and replacement of the sources 

(N or R) can be done with no interruption 

of service. 

You can maintain a continuous level of service 

and customer satisfaction. 

Maximum safety 

For LV electrical installations where safety and 

continuity of service are critical for people 

and/or equipment such as hospitals, airports, 

banks, malls, etc. 

Optimized energy 

management 

> Transfer the load to a replacement source 

according to external requirements. 

> Manage power sources according to power 

quality and power costs. 

> Perform system regulation. 

> Switch to an emergency replacement source. 

You are no longer dependent on your power 

supply (and supplier)! 

Simplicity and reliability 

> Simple installation on LV switchboard. 

> Optimized size of the switchboard. 

> System based on pre-tested components. 

> Compliance with IEC 60947-6-1. 

III

IV 

For critical applications 

in particular 

For all others 

in general 

A source-changeover system is indispensable 

for applications that need a continuous supply 

of electric power (hospitals, airports, banks, 

government facilities, etc.). 

But a source-changeover system is also 

suitable for all LV electrical installations 

exposed to: 

> Nominal voltage loss or dip (when there 

is high demand for electric power) 

> Unpredictable power quality 

> Frequent power cuts. 

These factors, and many others, can damage the 

continuity of service of your electrical installation. 

For infrastructure managers, a sourcechangeover 

system gives direct economic 

benefi ts: it is possible to select your source based 

on power cost. In this case, 

the replacement source (R) is used as 

an alternative, more economical source. 

Managing 

energy 

effi ciently 

Power Cost 

Safety

Source-changeover systems 

Compact NSX100-630, 

Compact NS630b-1600, 


General content 

Presentation 2 

Functions 

and characteristics 

A-1 

Dimensions B-1 

Electrical diagrams C-1 

Catalogue numbers 

and order forms 

D-1

PB 050 4 

PB390385_SE_R_35 

PB 0478 _R 

Presentation 

Incoming feeders and main LV switchboards 

Currents 

From 630 to 6300 A. 

Power distribution 

Currents 

From 250 to 3200 A. 

Loads 

Currents 

From 40 to 400 A. 

DB 0 543 

For maximum continuity 

of service...

DB 0 538 

DB 0 54 

DB 0 54 

normal source 

replacement source 

DB 0 539 

sources with coupler on 

busbars 

DB 0 540 

normal sources 

replacement source 

QN QR QS1 QC QS2 QN1 QN2 QR 

0 0 0 0 0 0 0 0 

0 0 0 

0 0 0 0 

0 0 0 

0 0 (1) 0 0 

0 0 (1) 

Generator or permanent 

source 


source 

DB 0 544 


source 

... in a wide range of applications 

(1) possible by forcing 

operation. 

QN QR Typical applications: 

0 0 

0 

0 

b continuous production processes 

b operating rooms 

b computer rooms... 

QN QR Typical applications: 

0 0 

0 

0 

b large electrical installations (e.g. airports) 

b refrigeration units 

b special electricity tariffs 

b pumping stations... 

3

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Functions and characteristics 


Overview of solutions A-2 

Manual source-changeover systems 

Interpact INS/INV40 to 630 A, Compact NSX100/630 A A-2 

Manual source-changeover systems Compact NS 

and Masterpact NT/NW 630 A to 6300 A A-3 

Remote-operated source-changeover systems 

Compact NSX100/630, Compact NS630b/1600 A A-4 


Masterpact NT/NW 630 A to 6300 A A-5 

Manual source-changeover systems A-6 

Possible combinations A-6 

Remote-operated source-changeover systems A-10 

Mechanical interlocking Compact NSX, Compact NS or Masterpact NT/NW A-10 

Mechanical interlocking Compact NS or Masterpact NT/NW A-11 

General characteristics Compact NSX A-12 

General characteristics Compact NS, Masterpact NT/NW A-13 

Mechanical and electrical durability Interpact INS, 

Compact NSX, NS, Masterpact NT/NW A-14 

Connection and insulation accessories for Compact NSX and INS y 630 A A-15 

Electrical interlocking A-16 

Standard configurations A-17 

Associated controllers A-18 

Controller selection A-18 

Controller installation A-19 

BA controller A-20 

BA controller, Operating sequences A-21 

UA controller A-22 

UA controller, Operating sequences, Forced operation mode A-23 

UA controller, Operating sequences, Special-tariff mode A-24 

UA controller, Operating sequences, Test mode and automatic operation A-25 

Operating sequences A-26 

IVE unit A-26 

BA/UA controller A-27 

COM communications option A-28 



Catalogue numbers and order forms D-1 

A-1

DB 6589 

DB 6590 

DB 6588 

DB 6587 

DB 6586 

Functions 


Range Interpact Compact 

Models INS40 to INS80 

INS 00 to INS 60 

A- 

INS 50 to INS630 

INV 50 to INV630 

NSX 00 to NSX 50 

NSX400 to NSX630 

Rating (A) 40 to 60 00 to 630 00 to 630 

Type of device Switch-disconnectors with 

extended handles 


Interlocking via toggles 

2 devices side-by-side. 3 devices side-by-side. 

Interlocking via rotary handles 

2 devices side-by-side. 

Interlocking via keylocks with captive keys 

A number of different devices. 

Interlocking on a base plate 


Complete source-changeover assemblies 


Overview of solutions 


Interpact INS/INV 40 to 630 A, 

Compact NSX100/630 

DB 0 546 

.4 .4 

22 

NN 

Switch-disconnectors N/H/L circuit breakers 

NA switch-disconnectors 

DB 0 547 

DB 0 549 

DB 0 55 

DB 0 545 

DB 0 548 

DB 0 550 

DB 0 55 

ON ON 

II 

OO 

OFF OFF 

ON ON 

II 

OO 

OFF OFF

DB 6590 

DB 6588 

DB 6585 

DB 6584 

DB 6583 

DB 6580 

Range Compact Masterpact 

Models NS630b to NS 600 NT06 to NT 6 NW08 to NW63 

Rating (A) 630 to 600 630 to 600 800 to 6300 

Type of device N/H/L circuit breakers 



Interlocking via extended rotary handles 


Interlocking via keylocks with captive keys 

A number of different devices. 

Mechanical interlocking using connecting rods 

2 devices one above the other. 

Mechanical interlocking using cables 

2 or 3 devices one above the other. 

2 or 3 devices side-by-side. 

For this case and other cases, please consult us 


Compact NS and Masterpact NT/NW 

630 A to 6300 A 

DB 0 553 

DB 0 554 

DB 0 557 

(1) 

DB 0 560 

(1) 

(2) 

H /L circuit breakers 

HA switch-disconnectors 

(1) Implemented with NS630b to NS1600 electrically-operated devices only. 

(2) For source-changeover systems using cables, always respect the installation conditions specified on page A-13. 

OFF O OFF O 

OFF O OFF O 

I O 

I O 

I O 

I O 

OFF 

push ON 

push OFF 

push ON 

push 

OFF 

push ON 

push OFF 

push ON 

push 

discharged 

discharged 

discharged 

discharged 

DB 0 555 

DB 0 558 

DB 0 56 

OO 

II 

push push OFF OFF 

push push ON ON 

OO OFF OFF 

discharged 

discharged 

OO 

II 

push push OFF OFF 

push push ON ON 

OO OFF OFF 

discharged 

discharged 

N /H /H /H3/L circuit 

breakers 

NA/HA/HF switchdisconnectors 

DB 0 556 

DB 0 559 

DB 0 56 

A-3

DB 6587 

DB 6585 

DB 658 

DB 658 

DB 658 

DB 658 

Functions 


Range Compact 

Models NSX 00 to NSX630 NS630b to NS 600 

Rating (A) 00 to 630 630 to 600 

Type of device N/H/L circuit breakers 



Mechanical interlocking on base plate + electrical interlocking 

2 electrically-operated devices side-by-side combined 

with an electrical interlocking system. 

Mechanical interlocking using connecting rods + electrical interlocking 

2 electrically-operated devices one above 

the other combined with an electrical interlocking system. 

Mechanical interlocking using cables + electrical interlocking 

2 electrically-operated devices one above 

the other combined with an electrical interlocking system. 



Automatic source-changeover systems 

Remote-operated source-changeover system combined with an automatic-control system 

A-4 

The automatic controller 

operates the devices 

depending on external 

parameters. 

BA: Simple controller that 

manages the changeover 

function. 

UA: Controller that also 

manages engine generator 

sets. 

UA150: UA controller with a 

communication option. 

Overview of solutions 

Remote-operated source-changeover 

systems Compact NSX100/630, 

Compact NS630b/1600 A 


DB 0 563 

DB 597 

DB 5963 

N/H/L circuit breakers 


DB 0 557 

DB 0 560 

(2) 

OFF O OFF O 

OFF O OFF O 

I O 

I O 

I O 

I O 

OFF 

push ON 

push OFF 

push ON 

push 

OFF 

push ON 

push OFF 

push ON 

push 

discharged 

discharged 

discharged 

discharged 

BA controller 

UA and UA150 controller

DB 6585 

DB 6584 

DB 6583 

DB 658 

DB 658 

Range Masterpact 

Models NT06 to NT 6 NW08 to NW63 

Rating (A) 630 to 600 800 to 6300 

Type of device H /L circuit breakers 

HA switch-disconnectors 


Mechanical interlocking using connecting rods + electrical interlocking 



Mechanical interlocking using cables + electrical interlocking 

2 or 3 electrically-operated devices one above the other 

combined with an electrical interlocking system (1) . 

2 or 3 electrically-operated devices side-by-side combined with 

an electrical interlocking system (1) . 

Automatic source-changeover systems 

Remote-operated source-changeover system combined with an automatic-control system 

The automatic controller 

operates the devices 

depending on external 

parameters. 

BA: Simple controller that 

manages the changeover 

function. 

UA: Controller that also 

manages engine generator 

sets. 

UA150: UA controller with a 

communication option. 

Remote-operated source-changeover 

systems Masterpact NT/NW 

630 A to 6300 A 

(1) Three devices with Masterpact NW only. 


For other cases, please consult us. 

DB 0 558 

DB 0 56 

(2) 

DB 597 

DB 5963 

N /H /H /H3/L circuit breakers 

NA/HA/HF switch-disconnectors 

DB 0 559 

DB 0 56 

BA controller 

UA and UA150 controller 

A-5

Functions 


A manual source-changeover system can be installed 

on two or three manually-operated and mechanically 

interlocked circuit breakers or switch-disconnectors. 

Interlocks prevent connection to both sources at the 

same time, even momentarily. 

A-6 

All possibilities for manual source-changeover systems 

Type of device Type of interlocking for two devices 

Complete 

assembly 

Interpact switch-disconnectors 

INS40 to INS160 

INS250-100 to INS630 

INV100 to 630 

Type of device Type of interlocking for two devices 

Toggle Keylock Direct rotary 

handle 

Compact fixed or withdrawable circuit breakers 

b 

Keylock Direct rotary 

handle 

b b r b r 

Extended 

rotary handle 

b b r b r r 

INS/INV630b to 2500 

b 

Legend: 

r Possible but visible break function disabled. 

r 250 A and 630 A ratings can be mixed by using INS320/630 rotary handle interlocking system. 

Extended rotary 

handle 

On base plate 

On base plate 

(toggle or direct extended (motor mechanism) 

rotary control) 

NSX100 to 250 b b b b p b b b b b b b b b b 

NSX400 to NS630 b b b b p b b b b b b b b b b 

NSX100 to 630 b b p b b p b b p b b b p b b b p 

NS630b to 1600 with 

rotary handle 

Legend: 

b Fixed devices only. 

b Fixed or withdrawable devices. 

b b p b b b b 

b Devices must be either both fixed or both withdrawable. 

p With NSX400/630 rotary handle interlocking system. 

p Possible with NSX400/630 base plate + NSX100-250 adaptation kit. 

p Devices equipped with rotary handles. 

Type of device Type of interlocking for either all fixed or all withdrawable devices 

Keylock Cable-type, 

2 devices side-byside 

Cable-type, 

3 devices side-byside 

Cable-type, 

2 devices one 

above the other 

Compact fixed or withdrawable circuit breakers or swith-disconnectors, with motor mechanism 

Cable-type, 

3 devices one 

above another 

NS630b to 1600 b b b b 

Masterpact fixed or withdrawable circuit breakers or swith-disconnectors, manual operation or with motor mechanism 

NT06 to 16 b b b b 

NW08 to 63 b b b b b b 

NT06 to NW63 b b b 

Manual source-changeover 


Possible combinations 

b 

Rod-type, 

3 devices one 

above another

DB 0 57 

DB 0 566 

Complete source-changeover assembly for two switch-disconnectors 

All possibilities for manual source-changeover systems 

These assemblies provide an easy way to implement source changeover functions 

with: 

b a single 3-position rotary handle that controls the two switch-disconnectors 

(Normal source ON, OFF, Replacement source ON) 

b a smaller size, taking up less room in the switchboard. 

A complete source changeover assembly can be ordered with a single catalogue 

number. 

“Normal N” “Replacement” R 

INS250-100 INS250-160 INS200-200 INS250-250 INS320 INS400 INS500 INS630 

INS250-100 

Ratings 00 A 

INS250-160 

b 

Ratings 60 A 

INS200-200 

b 

Ratings 00 A 

INS250-250 

b 

Ratings 50 A 

INS320 

b 

Ratings 3 0 A 

INS400 

b 

Ratings 400 A 

INS500 

b 

Ratings 500 A 

INS630 

b 

Ratings 630 A 

b 

Interlocking of two or three toggle-controlled devices 

Possible combinations of “Normal” and “Replacement” source circuit breakers 


Two devices can be interlocked using this system. Two identical interlocking systems 

can be used to interlock three devices installed side by side, in which case one 

device is in the ON position and the two others are in the OFF position. Devices must 

all have the same configuration, i.e. fixed, plug-in, withdrawable or drawout. 

The system is locked using one or two padlocks (shackle diameter 5 to 8 mm). 

Two interlocking system models are available for: 

b Compact NSX 00 to 50 

b Compact NSX400 to 630. 


NSX100 NSX160 NSX250 NSX400 NSX630 

NSX100 

Ratings 6... 00 A 

NSX160 

b 

b 

b 

b 

b 


NSX250 

b 

b 

b 

b 

b 

Ratings 

NSX400 

5... 50 A b 

b 

b 

b 

b 


NSX630 

b 

b 

b 

b 

b 

Ratings 630 A 

b 

b 

b 

b 

b 

A-7

DB 0 569 

DB 0 568 

Functions 


Interlocking of a number of devices using keylocks (captive keys) 

Combination of “Normal” and “Replacement” devices 

Interlocking of two devices with rotary handles 


A-8 

ON ON 

II 

OO 

OFF OFF 

ON ON 

II 

OO 

OFF OFF 




All Interpact, Compact and Masterpact circuit breakers and switch-disconnectors 

from 00 to 6300 A with rotary handles or motor mechanisms can be interlocked. 

Interlocking is based on two identical keylocks with a single key and a keylock 

adapter (different for each device). This solution enables interlocking between two 

devices that are physically distant or that have very different characteristics, for 

example between a low and a medium-voltage device, or between Compact NSX 

circuit breakers and switch-disconnectors. 

A system of wall-mounted captive key boxes makes possible a large number of 

combinations between many devices. 

The direct or extended rotary handles are padlocked with the devices in the OFF 

position. The mechanism prevents simultaneous closing of the devices, but allows 

them to be opened. 


Compact NSX100/630 (1) NSX100 



NSX160 

b b b v 

v 


NSX250 

b b b v 

v 

Ratings 

NSX400 

5... 50 A 

b b b v 

v 


NSX630 

v 

v 

v 

b b 

Ratings 630 A 

v 

v 

v 

b b 

v 250 A and 630 A ratings can be mixed by using NSX400/630 rotary handle interlocking 

system. 


Compact NS630b/1600 (1) NS630b 

NS630b NS800 NS1000 NS1200 NS1600 


NS800 

b b b b b 

Ratings 3 0... 800 A 

NS1000 

b b b b b 

Ratings 400... 000 A 

NS1200 

b b b b b 

Ratings 480... 

NS1600 

00 A b b b b b 

Ratings 640... 600 A b b b b b 

(1) When mixing NSX100/250 and NSX400/630 circuit breakers, use the NSX400/630 

interlocking system.

DB 0774 

DB 0 570 

DB 0 903 

Interlocking of two devices with rotary handles 

Possible combinations of “Normal” and “Replacement” source switch-disconnectors 

The direct or extended rotary handles are padlocked with the devices in the OFF 

position. The mechanism prevents simultaneous closing of the devices, but allows 

them to be opened. 


Interpact INS (1) INS40 

INS40 INS63 INS80 INS100 INS125 INS160 

Ratings 40 A 

INS63 

b b b b b b 

Ratings 63 A 

INS80 

b b b b b b 

Ratings 80 A 

INS100 

b b b b b b 

Ratings 00 A 

INS125 

b b b b b b 

Ratings 

INS160 

5 A 

b b b b b b 

Ratings 60 A 

b b b b b b 

(1) With extended rotary handles only. 

(2) Possible with INV, but visible-break function is significantly impaired. 


Interpact INS /INV (2) INS250-100/ INS250-160/ INS250-200/ INS250-250/ INS320/ INS400/ INS500/ INS630/ 

INS250-100/INV100 

INV100 INV160 INV200 INV250 INV320 INV400 INV500 INV630 

Ratings 00 A 

INS250-160/INV160 

b 

b 

b 

b 

v 

v 

v 

Ratings 60 A 

INS250-200/INV200 

b 

b 

b 

b 

Ratings 00 A 

INS250-250/INV250 

b 

b 

b 

b 

Ratings 50 A 

INS320/INV320 

b 

b 

b 

b 

v 

v 

Ratings 3 0 A 

INS400/INV400 

v 

v b b b b 

Ratings 400 A 

INS500/INV500 

b 

b 

b 

b 

Ratings 500 A 

INS630/INV630 

b 

b 

b 

b 

Ratings 630 A 

v 

v b b b b 

v 250 A and 630 A ratings can be mixed by using INS320/630 rotary handle interlocking system. 

Interlocking of two devices on a base plate 

Possible combinations of Compact NSX “Normal” and “Replacement” source circuit breakers 

A base plate is available for mechanical interlocking of two manually-operated 

Compact NSX 00 to 630 circuit breakers or switch-disconnectors. 



push push 

to to 

trip trip 

push push 

to to 

trip trip 


NSX100 


NSX160 


NSX250 


NSX400 


NSX630 

Ratings 630 A 

Interlocking of a number of devices using keylocks 

Combination of Masterpact devices 

Interlocking uses two identical keylocks with a single key. This solution enables 

interlocking between two devices that are physically distant or that have significantly 

different characteristics. 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

A-9

PB 0383 _5 

DB 6 68 

Functions 


Mechanical interlocking of two or three devices is used 

to create a remote-operated source-changeover 

system. A basic mechanical interlocking system 

enhances the reliability of system operation. 

Interlocking of two electrically-operated Compact NSX 

circuit breakers using a base plate. 

Interlocking of two Masterpact NT or NW circuit breakers using 

connecting rods. 

A- 0 

Remote-operated 

source-changeover systems 

Mechanical interlocking Compact NSX, 

Compact NS or Masterpact NT/NW 

Interlocking of two Compact NSX100 to 630 devices using a 

base plate 

A base plate designed for two Compact circuit breakers can be installed horizontally 

or vertically on a mounting rail. Interlocking is carried out on the base plate by a 

mechanism located behind the breakers. Access to the circuit breaker controls and 

trip units is conserved. Circuit breakers must be fixed or plug-in versions, with or 

without earth-leakage protection or measurement modules. The base plate and the 

circuit breakers are supplied separately. 

b Base plate for Compact NSX100 to 250 devices 

This base plate is intended for two Compact NSX 00 to 50 devices. 

b Base plate for Compact NSX400 to 630 devices 

This base plate is intended for two Compact NSX400 to 630 devices. It may also be 

used, without any modifications, to interlock a fixed Compact NSX 00 to 50 with a 

Compact NSX400 or 630 device. 

An adapter kit is required for plug-in versions of the Compact NSX 00 to 50 

devices. 

Compact NSX 00 to 50 devices, in both fixed and plug-in versions, may be 

equipped with spreaders. 

Possible combinations of “Normal” and “Replacement” Compact NSX source circuit 

breakers 



NSX100 

Ratings 

NSX160 

,5... 00 A b 

b 

b 

b 

b 

Ratings 

NSX250 

,5... 60 A b 

b 

b 

b 

b 

Ratings 

NSX400 

,5... 50 A b 

b 

b 

b 

b 


NSX630 

b 

b 

b 

b 

b 

Ratings 50... 630 A b 

b 

b 

b 

b 

Interlocking of two Compact NS630b to 1600 or two Masterpact 

NT and NW devices using connecting rods 

The two devices must be mounted one above the other (either fixed or 

withdrawable/drawout devices). 

Combinations are possible between Compact NS630b to NS 600 devices and 

between Masterpact NT and Masterpact NW devices. 

Installation 

This function requires: 

b an adaptation fixture on the right side of each circuit breaker or switchdisconnector 

b a set of connecting rods with no-slip adjustments. 

The adaptation fixtures, connecting rods and circuit breakers or switchdisconnectors 

are supplied separately, ready for assembly by the customer. 

The maximum vertical distance between the fixing planes is 900 mm. 



NS630b to NS1600 


NT06 to NT16 


NW08 to NW40 

Ratings 3 0... 4000 A 

NW40b to NW63 

Ratings 4000... 6300 A 

NS630b to 

NS1600 

b 

NT06 to NT16 NW08 to 

NW40 

b 

b 

b 

b 

b 

b 

NW40b to 

NW63 

b 

b 

b

PB 0084 -68_SE 

Interlocking of two Masterpact circuit breakers using cables. 

Mechanical interlocking 

Compact NS or Masterpact NT/NW 

Interlocking of two Compact NS630b to 1600 or two Masterpact 

NT/NW or up to three Masterpact NW devices using cables 

For cable interlocking, the circuit breakers may be mounted one above the other or 

side-by-side. 

The interlocked devices may be fixed or drawout, three-pole or four-pole, and have 

different ratings and sizes. 

Interlocking between two devices (Compact NS630b to 1600 or Masterpact NT 

and NW) 


b an adaptation fixture on the right side of each device 

b a set of cables with no-slip adjustments. 

The maximum distance between the fixing planes (vertical or horizontal) is 000 mm. 

Interlocking between three devices (Masterpact NW only) 


b a specific adaptation fixture for each type of interlocking, installed on the right side 

of each device 

b two or three sets of cables with no-slip adjustments. 

The maximum distance between the fixing planes (vertical or horizontal) is 000 mm. 

Installation 

The adaptation fixtures, sets of cables and circuit breakers or switch-disconnectors 

are supplied separately, ready for assembly by the customer. 

Installation conditions for cable interlocking systems: 

b cable length: .5 m 

b radius of curvature: 00 mm 

b maximum number of curves: 3. 





NT06 to NT16 


NW08 to NW40 

Ratings 3 0... 4000 A 

NW40b to NW63 

Ratings 4000... 6300 A 

NS630b to 

NS1600 

b 


NW40 

b 

b 

b 

b 

NW40b to 

NW63 

It is not possible to combine Compact NS630b to 600 and Masterpact NT 

(or Masterpact NW) devices. 

All combinations of two Masterpact NT and Masterpact NW devices are possible, 

whatever the rating or size of the devices. 

Possible combinations of three device 




NT06 to NT16 


NW08 to NW40 

Ratings 3 0... 4000 A 

NW40b to NW63 

Ratings 4000... 6300 A 

NS630b to 

NS1600 

b 

b 


NW40 

Only Masterpact NW may be used for three-device combinations. 

Types of mechanical interlocking and combinations 

See page A-4 to page A-9. 

b 

b 

b 

b 

b 

NW40b to 

NW63 

b 

b 

A-

Functions 


Range Compact NSX 

Types of devices NSX 00 to NSX 50 NSX400 to NSX630 

Types of circuit breakers N / H / L N / H / L 

Switch-disconnector version NA NA 

Mixing possibilities all devices all devices 

NS 00 to NS 50 NS 00 to NS630 

N/H/L/NA N/H/L/NA 

fixed or plug-in fixed or plug-in 

Electrical characteristics 

Rating 5 to 50 A 5 to 630 A 

Insulating voltage Ui (V AC) 750 750 

Positive break indication 

b 

b 

Number of poles 

(N and R devices must have the same number of poles) 

3, 4 

Electrical durability See page A- 4 

Operating temperature 

Control characteristics 

- 5 °C to +70 °C (50 °C for 440 V - 60 Hz) 

Control voltage AC 48 V - 50 Hz 48 V - 50 Hz 

0/ 30, 0/ 40, 380/440 V - 50/60 Hz 0/ 30, 0/ 40, 380/440 V - 50/60 Hz 

DC 4- 50 V 4- 50 V 

Maximum consumption AC 500 VA 500 VA 

DC 500 W 500 W 

Minimum switching time 

Interlocking 

Mechanical (see page A- 0) 

800 ms 800 ms 

Electrical by diagram (without IVE) 

b 

b 

with IVE unit 

b 

b 

auxiliary contacts used by circuit breaker OF + SDE OF + SDE 

Protection and measurement 

Overload protection long time b 

b 

Short-circuit protection short time b 

b 

instantaneous b 

b 

Earth-fault protection 

b 

Zone selective interlocking (ZSI) 

b 

Earth-leakage protection by Vigi module 

by control unit 

b 

b 

Current measurements 

by add-on Vigirex relay b 

b 

Voltage, frequency, power measurements, etc. 

Indication and control auxiliaries 

Available auxiliary indication contacts OF + SD (+ SDV) 3 OF + SD (+ SDV) 

Voltage releases MX shunt 

b 

b 

MN undervoltage 

b 

b 

Voltage presence indicator 

b 

b 

Voltage transformer 

b 

b 

Ammeter module 

b 

b 

Insulation monitoring module 

b 

b 

Source-changeover controller 

With permanent replacement source b BA controller 

With standby generator set 

Remote communication via bus 

Device status indications 

Device remote control 

b UA controller 

Transmission of settings 

b 

b 

Indication and identification of protection status and alarms b 

b 

Transmission of measurements 

Installation and connection 

Fixed front connected 

b 

b 

Fixed rear connected b (long rear connections) 

b (long rear connections) 

Withdrawable, plug-in or drawout 

Installation and connection accessories 

b (plug-in on base) 

b (plug-in on base) 

Downstream coupling accessory 

b 

b 

Bare-cable connectors 

b 

b 

Terminal extensions 

b 

b 

Terminal shields and inter-phase barriers 

b 

Locking by padlock 

b 

b 

by keylock 

b 

b 

Front panel escutcheons 

b 

b 

A- 


source-changeover systems0 

General characteristics 

Compact NSX

Compact NS Masterpact 

NS630b to NS 600 NT06 to 6 NW08 to 63 

N / H / L N / H / H / H3 / L N / H / H / H3 / L 

NA NA / HA / HF NA / HA / HF 

all devices all mixing possibilities all mixing possibilities 

NS630b to 600 (fixed, drawout or fixed + drawout) (fixed, drawout or fixed + drawout) 

N/H/L/NA N /H /H /H3/L /NA/HA/HF N /H /H /H3/L /NA/HA/HF 

fixed or plug-in 

50 to 600 A 600 to 600 A 800 to 6300 A 

750 000 000 

b 

3, 4 

b 

See page A- 4 

– 5 °C to +70 °C (50 °C for 440 V - 60 Hz) 

48 to 4 5 V - 50/60 Hz 

440 V - 60 Hz 

4- 50 V 4- 50 V 4- 50 V 

80 VA 80 VA 80 VA 

80 W 80 W 80 W 

800 ms 800 ms 800 ms 

b 

b 

b 

b only with UA or BA only with UA or BA 

OF + CE (+ SDE) OF + CE + PF OF + CE + PF 

b 

b 

b 

b 

b 

b 

b 

b 

OF + SD OF + SD OF + SD 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b BA controller 

b UA controller 

b 

b 

b 

b 

b (vertical or horizontal) 



b (drawout) 

b (drawout) 

b (drawout) 

b 

b 

b 

b 

b 

General characteristics 

Compact NS, Masterpact NT/NW 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

b 

A- 3

Functions 


Interpact INS switch-disconnectors 

INS250-100 INS250-160 INS250-200 INS250 

Number of poles 3, 4 3, 4 3, 4 3, 4 

Conventional thermal current (A) lth at 60 °C 100 160 200 250 

Rated operational current (A) Ie Electrical AC, 50/60 Hz AC22A AC23A AC22A AC23A AC22A AC23A AC22A AC23A 

440-480 V 100 100 160 160 200 200 250 250 

660-690 V 100 100 160 160 200 200 250 250 

Durability (category A) 

(O N -C R -O R -C N cycles) 

A-14 

Mechanical 15000 15000 15000 15000 

Electrical AC, 50/60 Hz AC22A AC23A AC22A AC23A AC22A AC23A AC22A AC23A 

440-480 V 1500 1500 1500 1500 1500 1500 1500 1500 

660-690 V 1500 1500 1500 1500 1500 1500 1500 1500 

INS320 INS400 INS500 INS630 

Number of poles 3, 4 3, 4 3, 4 3, 4 

Conventional thermal current (A) lth at 60 °C 320 400 500 630 

Rated operational current (A) Ie Electrical AC, 50/60 Hz AC22A AC23A AC22A AC23A AC22A AC23A AC22A AC23A 

440-480 V 320 320 400 400 500 500 630 630 

660-690 V 320 320 400 400 500 500 630 630 

Durability (category A) 




Mech. and elect. durability Interpact INS, 

Compact NSX, NS, Masterpact NT/NW 

Mechanical 10000 10000 10000 10000 

Electrical AC, 50/60 Hz AC22A AC23A AC22A AC23A AC22A AC23A AC22A AC23A 

440-480 V 1500 1500 1500 1500 1500 1500 1500 1500 

660-690 V 1500 1500 1500 1500 1500 1500 1500 1500 

Compact NSX100-630, Compact NS630b-1600 

NSX100-250 NSX400-630 NS630b- 

NS1600 

Number of poles 3, 4 3, 4 3, 4 

Rated current In (A) 100 to 250 400 to 630 630 to 1600 

Mechanical durability 


Electrical durability at In 


for y 440 V and 480 V 

NEMA (2) 



for U = 500 V to 690 V (2) 

20000 - 40000 - 

50000 

10000 - 20000 - 

30000 

15000 8000 

4000 - 6000 2000 

5000 - 7500 - 10000 2000 - 3000 1500 

Masterpact NT06-NT16/NW08-NW63 (1) 

NT06- NT12- NW08- NW20 NW25- 

NT10 NT16 NW16 NW40 

Number of poles 3, 4 3, 4 3, 4 3, 4 3, 4 3, 4 

Rated current In (A) 630 to 

1600 

Mechanical durability 

(O -C -O -C cycles) 

N R R N 



N R R N 

for y 440 V and 480 V 

NEMA (2) 



N R R N 

for U = 500 V to 690 V (2) 

1250 to 

1600 

800 to 

1600 

2000 2500 to 

4000 

NW50- 

NW63 

5000 to 

6300 

8000 8000 10000 10000 10000 5000 

6000 6000 

NT16: 

3000 

3000 2000 

NT16: 

1000 

10000 8000 5000 1500 

10000 6000 2500 1500 

(1) Mechanical and electrical durability not applicable to Masterpact H3 and L versions. 

(2) Electrical durability tests carried out with a power factor of 0.8 as per IEC 947-2. 

Note: 

ON: opening of Normal source 

CR: closing of Replacement source 

OR: opening of Replacement source 

CN: closing of Normal source

DB 99 

1 Short terminal shields 

2 Terminals 

3 Interphase barriers 

4 Long terminal shields 

1 

2 

3 

4 

Connection and insulation accessories for 

Compact NSX and INS y 630 A 


This accessory simplifies connection to bars and cables with lugs. 

It may be used to couple two circuit breakers (Compact NSX 00 to 630) or switchdisconnectors 

(Interpact INS/INV 00 to 630) of the same size. 

Pitch between outgoing terminals: 

b 

b 

b 

b 

Interpact INS 50 and INV 00 to 50: 35 mm 

Interpact INS/INV3 0 to 630: 5 .5 mm 

Compact NSX 00 to 50: 35 mm 

Compact NSX400 to 630: 5 .5 mm. 

For Compact NSX circuit breakers, the downstream coupling accessory can be used 

only with fixed versions. 

Connection and insulation accessories 

The coupling accessory can be fitted with the same connection and insulation 

accessories as the circuit breakers and switch-disconnectors. 

Possible uses Downstream coupling 

Possible Outgoing pitch 

(mm) 


INS 50 ( 00 to 50 A) with rotary handle 

b 35 

NSX 00/ 50 with rotary handle 

b 35 

NSX 00/ 50 on base plate with toggle control 

b 35 

INS400/630 (3 0 to 630 A) with rotary handle 

b 5 .5 

NSX400/630 with rotary handle 

b 5 .5 

NSX400/630 on base plate with toggle control 

Complete source-changeover assembly 

b 5 .5 

INS 50 ( 00 to 50 A) 

b 35 

INS400/630 (3 0 to 630 A) 


b 5 .5 

NSX 00/ 50 

b 35 

NSX400/630 

b 5 .5 

A- 5

Functions 


Electrical interlocking is used with a mechanical 

interlocking system. 

An automatic controller may be added to take into 

account information from the distribution system. 

Moreover, the relays controlling the “normal” 

and “replacement” circuit breakers must be 

mechanically and/or electrically interlocked to 

prevent them from giving simultaneous 

closing commands. 

A- 6 



Electrical interlocking 

Electrical interlocking is carried out by an electrical control device. 

For Compact NSX up to 630 A, electrical interlocking is implemented by the IVE unit 

integrating control circuits and an external terminal block in accordance with 

the pages C- to C-5 of the chapter “Electric diagrams” of this catalogue. 

The integrated control circuits implement the time delays required for correct source 

transfer. 

For Compact NS630b to 600 and Masterpact, this function can be implemented 

in one of two ways: 

b using the IVE unit 

b by an electrician based on the diagrams in accordance with the pages C-9 to C- 9 

of the chapter “Electric diagrams” of this catalogue. 

Characteristics of the IVE unit 

b external connection terminal block: 

v inputs: circuit breaker control signals 

v outputs: status of the SDE contacts on the “Normal” and “Replacement” source 

circuit breakers 

b connectors for the two “Normal” and “Replacement” source circuit breakers: 

v inputs: 

- status of the OF contacts on each circuit breaker (ON or OFF) 

- status of the SDE contacts on the “Normal” and “Replacement” source circuit breakers 

v outputs: power supply for operating mechanisms 

b control voltage: 

v 4 to 50 V DC 

v 48 to 4 5 V 50/60 Hz - 440 V 60 Hz. 

The IVE unit control voltage must be same as that of the circuit breaker operating 

mechanisms. 

DB 0 573 

IVE unit. 

Necessary equipment 

For Compact NSX100 to 630, each circuit breaker must be equipped with: 

b a motor mechanism 

b an OF contact 

b an SDE contact. 

The components are supplied ready for assembly and the circuit breakers prewired. 

The prewiring must not be modified. 

For Compact NS630b to 1600, each circuit breaker must be equipped with: 

b a motor mechanism 

b an available OF contact 

b a CE connected-position contact (carriage switch) on withdrawable circuit breakers 

b an SDE contact. 

For Masterpact NT and NW, each circuit breaker must be equipped with: 

b a remote-operation system made up of: 

v MCH gear motor 

v MX or MN opening release 

v XF closing release 

v PF “ready to close” contact 

b an available OF contact 

b one to three CE connected-position contacts (carriage switches) on drawout 

circuit breakers (depending on the installation).

DB 0 574 

DB 0 575 

DB 0 576 

DB 0 577 

DB 0 578 

Compact NS, Masterpact NT and NW 

Types of mechanical interlocking Possible combinations Typical electrical diagrams Diagram no. 

2 devices 

QN QR Compact NSX100 to 630: 

0 0 b electrical interlocking without emergency 

0 

power off (EPO) auxiliaries: 

51201177 

0 

v with EPO by MN 

51201178 

v with EPO by MX 

Compact NS630b to 1600: 

b electrical interlocking with lockout after fault: 

51201179 

v permanent replacement source (without IVE) 51201180 

v with EPO by MX (without IVE) 

51201181 

v with EPO by MN (without IVE) 

51201182 

v permanent replacement source (with IVE) 51201183 

v with EPO by MX (with IVE) 

51201184 

v with EPO by MN (with IVE) 

b automatic control without lockout after fault: 

51201185 


v engine generator set (without IVE) 

Masterpact NT and NW: 

b electrical interlocking with lockout after fault: 

51201187 


v with EPO by MX (without IVE) 

51201140 

v with EPO by MN (without IVE) 

51201141 


v with EPO by MX (with IVE) 

51201143 

v with EPO by MN (with IVE) 

b automatic control without lockout after fault: 

51201144 


v engine generator set (without IVE) 

b automatic control with lockout after fault: 

51156227 


v engine generator set (with IVE) 

51156905 

b BA/UA controller (with IVE) 

51156903 

Masterpact NW only 

Types of mechanical interlocking Possible combinations Typical electrical diagrams Diagram no. 

3 devices: 2 “Normal” sources and 1 “Replacement” source 

QN1 QN2 QR b electrical interlocking: 

0 0 0 v without lockout after fault 

51156906 

0 v with lockout after fault 

51156907 

0 0 

3 devices: 2 “Normal” sources and 1 “Replacement” source with source selection 

QN1 QN2 QR b automatic control with engine generator set: 

0 0 0 v without lockout after fault (with MN) 

51156908 

0 0 v with lockout after fault (with MN) 

51156909 

0 0 

0 

0 0 

3 devices: 3 sources, only one device 

Standard configurations 

QS1 QS2 QS3 b electrical interlocking: 


51156910 

0 0 v with lockout after fault 

51156911 

0 0 

0 0 

3 devices: 2 sources + 1 coupling 

QS1 QC QS2 b electrical interlocking: 


51156912 

0 v with lockout after fault 

51156913 

0 

0 b automatic control with lockout after fault 51156914 

0 0 (1) 

0 0 (1) 

(1) possible by forcing 

operation 

“Lockout after fault” option. This option makes it necessary to manually reset the device following fault tripping. 

A- 7

DB403809 

DB4038 0 

Functions 


By combining a remote-operated source-changeover 

system with an integrated BA 

or UA automatic controller, it is possible to 

automatically control source transfer according to userselected 

sequences. 

These controllers can be used on source-changeover 

systems comprising circuit breakers. 

For source-changeover systems comprising 3 circuit 

breakers, the automatic control diagram must be 

prepared by the installer as a complement to to 

diagrams provided in the “electrical diagrams” section 

of this catalogue. 

A- 8 

Associated controllers 

Controller selection 

Controller BA UA 

Compatible circuit breakers 

4-position switch 

All Compact NS, 

Compact NSX and 

Masterpact circuit breakers 

Automatic operation 

b 

b 

Forced operation on “Normal” source 

b 

b 

Forced operation on “Replacement” source 

b 

b 

Stop (both “Normal” and “Replacement” sources off) 

Automatic operation 

b 

b 

Monitoring of the “Normal” source and automatic transfer b 

b 

Generator set startup control 

b 

Delayed shutdown (adjustable) of generator set 

b 

Load shedding and reconnection of non-priority circuits 

b 

Transfer to the “Replacement” source if one of the phases 

of the “Normal” phase is absent 

Test 

b 

By opening the P 5M circuit breaker supplying the controller b 

By pressing the test button on the front of the controller 

Indications 

b 

Circuit breaker status indication on the front of the controller: 

on, off, fault trip 

b 

b 

Automatic mode indicating contact 

Other functions 

b 

b 

Selection of type of “Normal” source 

(single-phase or three-phase) (1) 

b 

Voluntary transfer to “Replacement” source 

(e.g. energy management commands) 

b 

b 

During peak-tariff periods (energy management commands) 

forced operation on “Normal” sourceif “Replacement” source 

not operational 

b 

Additional contact (not part of controller). 

Transfer to “Replacement” source only if contact is closed. 

(e.g. used to test the frequency of UR). 

b 

b 

BA controller. Setting of maximum startup time for the replacement source 

Options 

Communication option 

Power supply 

b 

Control voltages (2) 0 V 

b 

b 

0 to 40 V 50/60 Hz b 

b 

Operating thresholds 

380 to 4 5 V 50/60 Hz 

and 440 V 60 Hz 

b 

b 

Undervoltage 0.35 Un y voltage y 0.7 Un b 

b 

Phase failure 0.5 Un y voltage y 0.7 Un 

b 

Voltage presence voltage u 0.85 Un 

b 

b 

IP degree of protection (EN 60529) and IK degree of protection against 

external mechanical impacts (EN 50102) 

Front IP40 

b 

b 

Side IP30 

b 

b 

Connectors IP 0 

b 

b 

UA controller. Front IK07 

b 

b 

Characteristics of output contacts (dry, volt-free contacts) 

Rated thermal current (A) 8 

Minimum load 

Output contacts: 

0 mA at V 

Position of the Auto/Stop switch 

b 

b 

Load shedding and reconnection order 

b 

Generator set start order. 

b 

AC DC 

Utilisation category (IEC 947-5- ) AC AC 3 AC 4 AC 5 DC DC 3 

Operational current (A) 4 V 8 7 5 5 8 

48 V 8 7 5 5 - 

0 V 8 6 4 4 0.6 - 

0/ 40 V 8 6 4 3 - - 

50 V - - - - 0.4 - 

380/4 5 V 5 - - - - - 

440 V 4 - - - - - 

660/690 V - - - - - - 

(1) For example, 220 V single-phase or 220 V three-phase. 

(2) The controller is powered by the ACP control plate. The same voltage must be used for the ACP 

plate, the IVE unit and the circuit breaker operating mechanisms. If this voltage is the same as 

the source voltage, then the “Normal” and “Replacement” sources can be used directly for the 

power supply. If not, an isolation transformer must be used.

PB 00857_SE 

ACP control plate. 

ACP control plate 

The control plate provides in a single unit: 

b protection for the BA or UA controller with two highly limiting P 5M circuit breakers 

(infinite breaking capacity) for power drawn from the AC source 

b control of circuit-breaker ON and OFF functions via two relay contactors 

b connection of the circuit breakers to the BA or UA controller via a built-in terminal 

block. 

Control voltages 

b 0 V 50/60 Hz. 

b 0 to 40 V 50/60 Hz. 

b 380 to 4 5 V 50/60 Hz and 440 V 60 Hz. 

The same voltage must be used for the ACP control plate, the controller and the 

circuit breaker operating mechanisms. 

Installation 

Connection between the ACP control plate and the IVE unit may use: 

b wiring done by the installer 

b prefabricated wiring (optional). 

DB 6 69 

DB 6 70 

Controller installation 

Installation of the BA and UA controllers 

The BA and UA controllers may be installed in one of two manners: 

b directly mounted on the ACP control plate 

b mounted on the front panel of the switchboard 

b if the length of the connection between the controller and the control plate (ACP) is 

less than or equal to m, the connecting cable ref. 29368 can be ordered as an 

optional extra. Cables longer than m, but not longer than m will be the 

responsibility of the installer. 

Mounting on the ACP control plate. 

Mounting on the front panel of the switchboard. 

A- 9

DB40384 

DB403838 

Functions 


The BA controller is used to create simple sourcechangeover 

systems that switch from one source to 

another depending on the presence of voltage UN on 

the “Normal” source. 

It is generally used to manage two permanent sources 

and can control Compact NS, Compact NSX and 

Masterpact NT/NW circuit breakers and switchdisconnectors. 

BA Controller 

Front of the BA controller. 

A- 0 


BA controller 

Operating modes 

A four-position switch may be used to select: 

b automatic operation 

b forced operation on the “Normal” source 

b forced operation on the “Replacement” source 

b stop (both “Normal” and “Replacement” sources off). 

Setting the time delays 

Time delays are set on the front of the controller. 

t1. delay between detection that the “Normal” source has failed and the transmission 

of the order to open the “Normal” source circuit breaker (adjustable from 0. to 30 

seconds). 

t2. delay between detection that the “Normal” source has returned and the 

transmission of the order to open the “Replacement” source circuit breaker 

(adjustable from 0. to 40 seconds). 

Circuit breaker commands and status indications 

The status of the circuit breakers is indicated on the front of the controller. 

b ON, OFF, fault. 

A built-in terminal block may be used to connect the following input/output signals: 

b inputs: 

v voluntary order to transfer to source R (e.g. for special tariffs, etc.) 

v additional control contact (not part of the controller). Transfer to the “Replacement” 

source takes place only if the contact is closed (e.g. used to test the frequency of UR, 

etc.) 

b outputs: 

indication of operation in automatic or stop mode via changeover contacts. 

Test 

It is possible to test the operation of the BA controller by turning OFF (opening) 

the P 5M circuit breaker for the “Normal” source and thus simulating a failure of 

voltage UN.

1 

DB 6547 

DB 6549 

Switch set to Auto (automatic operation and special-tariff mode) Switch set to the “N” position (forced 

operation on the “Normal” source) 

Switch set to the “R” position 

(forced operation on the “Replacement” source) 

Key 

UN : “Normal” source voltage 

UR : “Replacement” source voltage 

N : “Normal” source circuit breaker 

R : “Replacement” source circuit breaker 

1 

The number sends to the indicated step when 

the condition is true. 

BA controller 

operating sequences 

DB 6548 

DB 6550 

Switch set to the “Stop” position 

WAITING The system exits this mode when the operating mode is modified or 

when an external event occurs (e.g. failure or return of UN). 

A-

DB40384 

DB403837 

Functions 


The UA controller is used to create a sourcechangeover 

system integrating the following automatic 

functions: 

b transfer from one source to another depending on 

the presence of voltage UN on the “Normal” source 

b startup of an engine generator set 

b shedding and reconnection of non-priority circuits 

b transfer to the “Replacement” source if one of the 

phases on the “Normal” source fails. 

The UA controller can control Compact NS, 

Compact NSX and Masterpact NT/NW devices. 

A- 

UA Controller 

Front of the UA controller. 


UA controller 

Operating modes 

A four-position switch may be used to select: 

b automatic operation 

b forced operation on the “Normal” source 

b forced operation on the “Replacement” source 

b stop (both “Normal” and “Replacement” sources off, then manual operation). 

Setting the time delays 

Time delays are set on the front of the controller. 

t1. delay between detection that the “Normal” source has failed and the transmission 

of the order to open the “Normal” source circuit breaker (adjustable from 0. 

to 30 seconds). 

t2. delay between detection that the “Normal” source has returned and the 

transmission of the order to open the “Replacement” source circuit breaker 

(adjustable from 0. to 40 seconds). 

t3. delay following opening of QN with load shedding and before closing of QR 

(adjustable from 0.5 to 30 seconds). 

t4. delay following opening of QR with load reconnection and before closing of QN 

(adjustable from 0.5 to 30 seconds). 

t5. delay for confirmation that UN is present before shutting down the engine 

generator set (adjustable from 60 to 600 seconds). 

t6. delay before startup of the engine generator set ( 0 or 80 seconds). 

Commands and indications 

Circuit breaker status indications on the front of the controller: 

b ON, OFF, fault. 

A built-in terminal block may be used to connect the following input/output signals: 

b inputs: 

v voluntary order to transfer to source R (e.g. for special tariffs, etc.) 

v additional control contact (not part of the controller). Transfer to the “Replacement” 

source takes place only if the contact is closed (e.g. used to test the frequency of UR, 

etc.) 

b outputs: 

v control of an engine generator set (ON / OFF) 

v shedding of non-priority circuits 

v indication of operation in automatic mode via changeover contacts. 

Distribution-system settings 

Three switches are used to: 

b select the type of “Normal” source, whether single-phase or three-phase 

(e.g. 40 V single-phase or 40 V three-phase) 

b select whether to remain (or not) on the “Normal” source if the “Replacement” 

source is not operational during operation on special tariffs 

b select the maximum permissible startup time for the engine generator set during 

operation on special tariffs ( 0 or 80 seconds). 

Test 

A pushbutton on the front of the controller may be used to test transfer from the 

“Normal” source to the “Replacement” source, then the return to the “Normal” source. 

The test lasts approximately three minutes. 

COM communications option 

Using the internal bus protocol, this option may be used to remote the following 

information: 

b 

b 

b 

b 

b 

circuit breaker status (ON, OFF, fault trip) 

presence of the “Normal” and “Replacement” voltages 

presence of an order for forced operation (e.g. special tariffs) 

settings and configuration information 

status of non-priority circuits (loads shed or not) 

b position of the switch (stop, auto, forced operation on the “Normal” source, forced 

operation on the “Replacement” source).

DB 655 

Switch set to the “R” position (forced operation on the “Replacement” source) Switch set to the “N” position (forced operation on 

the “Normal” source) 

WAITING The system exits this mode when the 

operating mode is modified or when an 

external event occurs (e.g. failure or return 

of UN). 

When the UA controller is not energised, the output for 

generator set startup is activated). 

Key 





UA controller 

Operating sequences 

Forced operation mode 

DB 655 

DB 6553 

Switch set to the “Stop” position 

A- 3

DB 6554 

Functions 


Switch set to the “Auto” position (special-tariff mode) 




of UN). 



Key 





B : Penalties accepted (N ON), i.e. B = 1 

1 

A- 4 




UA controller 


Special-tariff mode

DB 6555 

Switch set to the “Auto” position (automatic operation and test mode). 




of UN). 



Key 





B : Penalties accepted (N ON), i.e. B = 1 

(*) The test lasts 180 seconds. 

1 



UA controller 


Test mode and automatic operation 

A- 5

DB 6594 

Functions 


IVE unit 

Symbols 

QN : “Normal” Compact circuit breaker equipped 

for remote operation (motor mechanism) 

QR : “Replacement” Compact circuit breaker 

equipped for remote operation (motor 

mechanism) 

ON : Circuit breaker QN opening order 

OR : Circuit breaker QR opening order 

IN : Circuit breaker QN closing order 

IR : Circuit breaker QR closing order 

L1 : Faulty “Normal” indication LED 

L2 : Faulty “Replacement” indication LED 

Key 

O: OFF (circuit open) 

I: ON (circuit closed 

: either ON or OFF. 

A- 6 


IVE unit 

Note: 

Following all trips (overload, short-circuit, earth-leakage fault, voluntary trip), a manual reset on 

the front of the motor mechanism is required.

DB 6595 

DB 6599 

BA controller 

Inputs 



KT : order for forced-operation on R 

KR : additional check before transfer 

Outputs 

QN : “Normal” source circuit breaker 

QR : “Replacement” source circuit breaker 

UA controller 

Inputs 



KT : order for forced-operation on R 

KR : additional check before transfer 

Outputs 

KG : order to the genset 

SH : load-shedding order 

QN : “Normal” source circuit breaker 

QR : “Replacement” source circuit breaker 

Key 

O: OFF (circuit open) 

I: ON (circuit closed 

: either ON or OFF. 

BA/UA controller 

Important 

If UR is not ON when the transfer order is issued (KT or UN), the sequence is not carried out. 

If KR status is not ON when the transfer order is issued (KT or UN), the transfer sequence is 

carried out later when KR status becomes I. 

A- 7

DB404 57 

Functions 


Electrical-installation management Communications option for Compact NS u 630 A 

and Masterpact NT/NW 

The COM communications option is compatible with all the source-changeover 

systems for Compact NS630b- 600 and Masterpact NT/NW circuit breakers and 

switch-disconnectors. 

It can be used to remote status information. It may not be used to operate the circuit 

breakers (only possible locally on the front of the UA 50 controller). 

Communication 

interface 

Communication bus 

Devices 

N 

R 

A- 8 

DC150 

OK 

error 

RS 232, Ethernet 

RS 485 

BBus 

JBus 

com. com. 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 

DC150 data 

concentrator 

IVE Masterpact Masterpact 

N 

N°1 N°2 

24V 

error 


Masterpact and Compact NS630b to 600 circuit breakers and switch-disconnectors 

are compatible with the Modbus ECO COM option. 

Depending on the trip units or control units used, the COM option may also be used 

to analyse distribution-system parameters required for the operating and 

maintenance assistance. 

Circuit breaker communication 

Switchdisconnector 

Circuit breaker 

Compact NS630b-1600 status indications 

ON / OFF 

b 

b 

Fault trip 

b 

Connected / disconnected position 

Masterpact NT/NW status indications 

b 

b 

ON / OFF 

b 

b 

Fault trip 

b 

Connected / disconnected position 

b 

b 

Operating and maintenance assistance 

Operating and maintenance aids 

Measurement 

Modbus 

Current A E P H 

Voltages, power... E P H 

Frequency P H 

Power quality: fundamental, harmonics H 

Programming of demand metering 

Fault readings 

E P H 

Type of fault A E P H 

Interrupted current 

Waveform capture 

P H 

On faults H 

On demand or programmed 

Histories and logs 

H 

Trip history E P H 

Alarm history P H 

Event logs 

Indicators 

P H 

Counter operation A E P H 

Contact wear P H 

Maintenance register 

Note: 

P H 

see the description of the Micrologic control units for further details on protection and alarms, 

measurements, waveform capture, histories, logs and maintenance indicators.

DB404074 

DC150 

OK 

error 

N 

N°1 N°2 

BBus 

JBus 

com. com. 

24V 

error 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 


Controller 

Status indications 

“Normal” source 

UA150 

ON / OFF 

b 

Circuit breaker ON 

b 

Fault trip (SDE) 

b 

Voltage presence 

“Replacement” source 

b 

Circuit breaker ON 

b 

Fault trip (SDE) 

b 

Voltage presence 

b 

Status of R voltage contact 

Controller 

b 

Automatic mode 

b 

“Normal” mode 

b 

“Replacement” mode 

b 

Stop mode 

b 

Testing 

“Replacement” engine generator set 

b 

Genset failure 

b 

Genset OFF 

b 

Genset ON 

b 

Shedding of non-priority circuits 

b 

Reconnection of non-priority circuits 

Settings 

b 

Time delay t for validation of UN absence 

b 

Time delay t for validation of UN return 

b 

Time delay t3 for wait between opening of N and closing of R 

b 

Time delay t4 for wait between opening of R and closing of N 

b 

Time delay t5 for wait between return of UN and order for genset shutdown b 

Time delay t6 for wait before declaring genset failure 

b 

Penalties accepted to avoid special tariff transfer 

b 

DC150 data concentrator 

The DC 50 data concentrator is designed to centralise the information provided 

by the communicating switchgear of the Digipact range and to make this 

information accessible to a supervisor or PLC under the MODBUS/JBUS 

protocol. 

Main characteristics 

b Power supply: 

0 V AC to 40 V AC 

5 V DC to 5 V DC. 

b Weight: .5 kg. 

b Installation: on panel with the DC 50 box which must be earthed on metal 

part of the installation. 

b Over dimensions H x W x D (mm): 38.5 x 00 x 9 .8. 

A- 9

TOOLS 

schneider-electric.com 

This international site allows you 

to access all the Schneider Electric 

Solution and Product information 

via : 

p comprehensive descriptions 

p range data sheets 

p a download area 

p product selectors 

p .. 

You can also access the information 

dedicated to your business and get 

in touch with your Schneider Electric 

country support.





Dimensions 


Functions and characteristics A-1 

Manual source-changeover systems B-2 

Interlocking of direct rotary handles B- 

Interlocking of extended rotary handles B-3 

Interlocking of toggles B-5 

Complete source-changeover assembly B-6 

Downstream coupling accessory B-7 

Remote-operated source-changeover systems B-9 

Interlocking on a base plate B-9 

Interlocking using connecting rods B- 3 

Interlocking using cables B- 5 

IVE unit, BA and UA automatic controllers B- 0 



B-

DB 6607 

DB 0 609 

Dimensions 

Compact NSX100 to 630 

Dimensions Front-panel cutout 

B- 

DB 6608 

Dimensions (mm) 

Type A B C D F G H J K L M N P 

NSX 00/ 60/ 50 3 5 90 87.5 75 56 33 9. 5 9 95 75.5 50 75 55 

NSX400/630 4 6 5 00 00 0 57 5 4.6 386 00 75 74.5 79 

Interpact INS/INV250 - 100 to 250 / Interpact INS/INV320/400/500/630 


DB 0 6 0 



Interlocking of direct rotary handles 


Type A B C D F G H K L M N P 

INS/INV 50 - 00/ 60/ 00/ 50 3 5 90 87.5 75 56 06 7.5 95 75.5 50 75 3 

INS/INV3 0/400/500/630 4 6 5 00 00 0 30 .5 386 00 75 74.5 60.4 

Note: X and Y are the symmetry planes for a 3-pole device. 

DB 6609 

DB 0 6

DB 66 0 

DB 0 6 4 



DB 6608 


Type A B C D F G min G max H J P Q 

NSX 00/ 60/ 50 3 5 90 87.5 75 56 7 600 9. 5 9 5.5 5.5 

NSX400/630 4 6 5 00 00 0 95 600 5 4.6 30.8 30.8 

Interpact INS40/63/80/100/125/160 / Interpact INS/INV250 - 100 to 250 / Interpact INS/INV320/400/500/630 


DB 0 6 5 

Interlocking of extended rotary handles 


Type A B C D F G min G max H P Q 

INS40/63/80 3 5 90 87.5 75 56 55 396 0 5.5 5.5 

INS 00/ 5/ 60 3 5 90 87.5 75 56 00 44 0 5.5 5.5 

INS/INV 50 - 00/ 60/ 00/ 50 3 5 90 87.5 75 56 85 600 7.5 5.5 5.5 

INS3 0/400/500/630 4 6 5 00 00 0 04 600 .5 30.8 30.8 

DB 66 

DB 07756 

B-3

DB 0 6 7 

DB 0 6 9 

Dimensions 

Compact NS630b to 1600 

Dimensions 

Front-panel cutout 

B-4 

DB 0 6 8 



Interlocking of extended rotary handles 


Type A B C D F G min G max H J P Q R 

NS630b/800/ 000/ 00/ 600 4 63.5 98 75 80 8 605 5 4 5.5 5.5 64

DB 66 


Dimensions 3 poles 4 poles 

DB 66 3 

Front-panel cutout 3 poles on left 4 poles on left 

DB 0 6 3 

Interlocking of toggles 


Type C2 C3 L L16 L17 L18 R2 R18 R19 P5 P 

NSX 00/ 60/ 50 54 08 5 .5 40 45 80 54 89 40 83 0 

NSX400/630 9 .5 8 70 85 3 5 370 7 .5 6.5 85 07 50 

DB 66 4 

DB 0 6 4 

B-5

DB 0 6 5 

DB 0 6 7 

DB 0 650 

DB 07743 

Dimensions 

Assembly for INS250 - 100 to 250 / Assembly for INS320/400/500/630 

Dimensions 

Front-panel cutout 

B-6 

DB 0 6 6 


Type A B C D E F G H I J K L M N 

INS 50 - 00/ 60/ 00/ 50 60.4 30.4 96 68 36 3 6 .8 79.3 4 84 56 86.5 5.5 50 

INS3 0/400/500/630 8 .5 75 395 0 .5 05 55 87 383.7 64 8 0 3 8 50 

Dimensions of the complete source-changeover assembly with an extended handle 

DB 0 65 





Type A B C E K L M N 

INS 50 - 00/ 60/ 00/ 50 60.4 30.4 95 36 56 38.5 63 50 

INS3 0/400/500/630 8 .5 75 395 05 0 6 .5 658 75 


Type P Mmax Mmin Q 

INS 50 - 00/ 60/ 00/ 50 00 567.5 95 64 

INS3 0/400/500/630 50 593 0.5 64 

Note: Lines X and Y indicate the axes of symmetry of the switch-disconnector. 

Reference plane Z corresponds to the back of the switch-disconnector.

DB 66 5 

DB 0 630 

Compact NSX100 to NSX630 (only for Compact NSX fixed devices) 

Dimensions 

Dimensions Connection 

DB 66 6 



Type G2 G3 G28 G29 G30 G52 K1 K2 K3 K4 K8 K9 K16 

NSX 00/ 60/ 50 8 8 .5 38 96 40 56 35 35 5 56 70 70 8 

NSX400/630 65.9 65.7 339.5 43.5 88.5 7.5 45 5 .5 75 0 3.5 50.7 3.75 


Type L28 L29 L30 L31 L32 L33 L34 L35 L36 L37 L39 L40 ØT 

NSX 00/ 60/ 50 3 0 99.5 300 89.5 3 39.5 74.5 9.5 87.5 9.5 40 6 

NSX400/630 4 0 7.5 400 7.5 . 87.5 - 96.5 6 5 .5 0 6 

Note: coupling accessory: only for changeover systems using fixed versions of Compact NSX circuit breakers. 

DB 0 63 

B-7

DB 0 63 

DB 0 90 

Dimensions 

Interpact INS250 - 100 to 250 / Interpact INS320/400/500/630 

Dimensions 

Dimensions Connection 

B-8 

DB 0 633 





Type G2 G3 G28 G29 G30 G52 K1 K2 K3 K4 K8 K9 K16 

INS 50- 00/ 60/ 00/ 50 05.5 69 5.5 83.5 7.5 43.5 35 35 5 56 57.5 57.5 5.5 

INS3 0/400/500/630 4 40.7 3 5 9 63.5 0 .5 45 5 .5 75 0 88.5 5.7 6. 5 


Type L28 L29 L30 L31 L32 L33 L34 L35 L36 L37 L39 L40 ØT 

INS 50- 00/ 60/ 00/ 50 3 0 8 300 7 6.5 3 39.5 74.5 .5 70 8.5 40 6 

INS3 0/400/500/630 4 0 05 400 95 . 87.5 - 98.5 6 9 .5 0 0 6 

DB 0 90

DB 66 7 

DB 0 637 


Dimensions, 3 or 4 poles Fixed device Withdrawable device 

Vertical mounting Horizontal mounting 

DB 0 638 




DB 66 8 

DB 66 9 

(*) Short terminal shields are 

mandatory. 


Type G50 G51 H20 H21 H22 H23 H42 H43 H44 H45 H46 K25 K35 K36 

NSX 00/ 60/ 50 37.5 85 6 .5 97 45.5 73 60 0 44.5 300 37 56 0.5 300 

NSX400/630 80 360 00 5 83 3 60 0 89 378 77 0 8 .5 400 


Type L31 L32 P7 P8 P9 P32 P33 P50 P52 P54 ØT9 ØT10 U 

NSX 00/ 60/ 50 0.5 354 5 45 75 8 43 5 99.5 9 6 y 3 

NSX400/630 50.5 466 5 45 00 56 5 5 3 9 6 y 3 

Note: coupling accessory: only for changeover systems using fixed versions of Compact NSX circuit breakers. 

B-9

DB 66 0 

DB 0 637 

Dimensions 


Dimensions, 3 or 4 poles Fixed device 

Note: coupling accessory: only for changeover systems using fixed versions of Compact NSX 

circuit breakers. 

Dimensions 

Vertical mounting Horizontal mounting 

Note: dimensions see p. B-9. 

B- 0 

DB 0 638 




DB 66 

DB 66 

Withdrawable device 

(*) Short terminal shields are mandatory.

DB 66 6 

DB 66 5 

“Normal” and “Replacement” source devices: NSX100 to NSX250 


145 

177 

DB404 34 

NSX100 

to 

NSX250 

“Normal” and “Replacement” source devices: NSX400 to NSX630 


217 

249 

DB404 35 


95 

NSX400 

to 

NSX630 

156 

95 

47.5 47.5 

Note for Compact NSX: 

For dimensions with the accessories (IP40 escutcheons and Vigi escutcheon protection collars), see Catalogue Compact. 

127 

63.5 

210 

NSX100 

to 

NSX250 

127 

63.5 

NSX400 

to 

NSX630 

29.5 

77 

42 

127 

B-

DB 66 3 

Dimensions 

NSX400 to NSX630 as the “Normal” device, NSX100 to NSX250 as the “Replacement” device 


B- 

DB404 36 




NSX400 

to 

NSX630 

NSX100 

to 

NSX250

DB 07747 

DB 0 656 

Interlocking using connecting rods 

Two Compact NS630b to NS1600 devices one above the other 

Fixed devices Withdrawable devices 

Two Masterpact NT devices one above the other 


DB 0 655 

DB 0 655 

B- 3

DB 07748 

Dimensions 

Two Masterpact NW devices one above the other 


B- 4 




DB 07749

DB 0 66 

DB 0 663 

DB 0 664 

Interlocking using cables 

Two Compact NS630b to NS1600 devices side-by-side 


Two Masterpact NT devices side-by-side 

Fixed devices Drawout devices 

Combination of two Masterpact NT and NW devices side-by-side 


DB 0 66 

DB 0 66 

DB404 47 

B- 5

DB 0 666 

DB 0 668 

DB 0 669 

Dimensions 

Two Masterpact NW devices side-by-side 


Three Masterpact NW devices side-by-side 

Fixed devices 

Drawout devices 

B- 6 




DB 0 667

DB 07750 

DB 0 67 


Two Compact NS630b to NS1600 devices one above the other 


Two Masterpact NT devices one above the other 


DB 0 67 

DB 0 67 

B- 7

DB 0775 

DB 07753 

Dimensions 

Two Masterpact NW devices one above the other 


Two Masterpact NT and NW devices one above the other 


B- 8 




DB 0775 

DB404 48

DB 07754 


Three Masterpact NW devices one above the other 


DB 07755 

B- 9

DB 0 679 

DB 0 680 

Dimensions 

IVE unit 

B- 0 

DB 0 678 

ACP control plate and BA/UA controllers Door cutout for BA/UA controllers 

DB 0 68 



IVE unit, BA and UA automatic controllers 

DB 0 68 

DB 0 683 

(1) Cutout according DIN 43700 standard.





Electrical diagrams 




Remote-operated source-changeover systems C-2 

Compact NSX 00/630, NSX630b/ 600 or Masterpact NT/NW devices C- 

Compact NSX 00/630 devices C-3 

Compact NS630b/ 600 devices C-6 

Masterpact NT or NW devices C- 4 

3 Masterpact NW devices C- 4 

Source-changeover systems with automatic controllers C-33 

Compact NSX 00/630, NSX630b/ 600 or Masterpact NT/NW devices C-33 

Controller settings C-35 

Masterpact NT or NW devices C-36 


C-


Electrical interlocking by the IVE unit 

Recommended electrical control system 

IMPORTANT 

The relays controlling the “normal” and “replacement” 

circuit breakers must be mechanically and/or 

electrically interlocked to prevent them from giving 

simultaneous closing commands. 

Legends 

ON “Normal” source opening order 

OR “Replacement” source opening order 

FN “Normal” source closing order 

FR “Replacement” source closing order 

L1 “Normal” source “fault-trip” signal 

L2 “Replacement” source “fault-trip” signal 

N “Normal” source auxiliary wiring connector 

R “Replacement” source auxiliary wiring connector 

C- 



2 Compact NSX100/630, NS630b/1600 

or Masterpact NT/NW devices 

DB40 804 

(1) See section “IMPORTANT” here after. 

(2) Operating diagram: the SDE “fault-trip” signals are transmitted to the IVE unit. The SDE 

auxiliary contacts are mounted in the circuit breakers. 

Note: 

diagram shown with circuits de-energised, circuit breakers open 

and relays in normal position.

DB40 805 

Source-changeover system without automatic-control system 

Without auxiliaries for emergency off Local reset 

Legends 

QN “Normal” source Compact NSX equipped with motor mechanism 

QR “Replacement” source Compact NSX equipped with motor 

mechanism 

SDE “fault-trip” indication contact 

IVE electrical interlocking and terminal block unit 

MT motor mechanism 

OF2 breaker ON/OFF indication contact 

RN reset order for breaker QN 

RR reset order for breaker QR 

2 Compact NSX100/630 devices 

Diagram no. 51201177 

DB 0 659 

DB 0 660 

Voluntary remote reset 

Automatic reset 

(1) Prefabricated wiring: cannot be modified. 

States permitted by mechanical interlocking system 

Normal Replacement 

0 0 

0 

0 

Note: 


and relays in normal position. 

C-3

DB40 806 



With emergency off by MN release and automatic reset 

Legends 

QN “Normal” source Compact NSX equipped with 

motormechanism 


mechanism 

MN undervoltage release 





BP emergency off button with latching 

KA3 auxiliary relay 

F1 auxiliary power supply circuit breaker 

C-4 






(1) Prefabricated wiring supplied. 

(2) Independent auxiliary source. 



0 0 

0 

0 

Note: 

after a fault trip, the breaker must be reset manually by pressing 

its reset button. 

Diagram shown with circuits de-energised, circuit breakers open 


DB40 807 


With emergency off by MX release and automatic reset 

Legends 

QN “Normal” source Compact NSX equipped with motor 

mechanism 


mechanism 



MX shunt release 



KA1 time-delayed auxiliary relays 

KA2 time-delayed auxiliary relays 






(1) Prefabricated wiring supplied 

(2) This source can be: 

b the source present in the case of voltage monitoring 

b an independent source. 

In this case, the MX release must be protected. 

(3) The reset orders must be delayed by 0.3 seconds. 



0 0 

0 

0 

Note: 



Diagram shown with circuits de-energised, circuit breakers open 


C-5

DB404 53 


Electrical interlocking 

C-6 

ATTENTION 

The diagram shows the electrical wiring for circuit breakers. 

When wiring the SDE with switch-disconnectors, connect 

the SDE to terminals 81 and 84. 

Legends 

QN “Normal” source Compact NS630b to 1600 

QR “Replacement” source Compact NS630b to 1600 

OF... breaker ON/OFF indication contact 


CE1 “connected-position” indication contact (carriage switch) 




FN “Normal” source closing order (0.25 second delay) 

FR “Replacement” source closing order (0.25 second delay) 

MT Motor Mechanism 



2 Compact NS630b/1600 devices 


(1) Not to be wired on fixed version. 



0 0 

0 

0 

Note: 



Diagram shown with circuit breakers in connected position, open, 

charged, and ready to close. 

Auxiliary power supply = supply voltage of auxiliary relays (KA...) 

= supply voltage of electrical auxiliaries (electrical operation, 

MT...).

DB404 54 

Electrical interlocking with emergency off by shunt release 

ATTENTION 




Legends 




















0 0 

0 

0 

Note: 






= supply voltage of electrical auxiliaries (electrical operation, MT, 

MX..). 

C-7

DB404 55 


Electrical interlocking with emergency off by undervoltage 

C-8 

ATTENTION 




Legends 















Wiring colour codes 

RD GN BK VT YE GY WH BN 

red green black violet yellow grey white brown 








0 0 

0 

0 

Note: 






= supply voltage of electrical auxiliaries (electrical operation, MN, 

MT...).

DB40 8 

Electrical interlocking by IVE unit 

ATTENTION 



wire BK to terminal 82. 

IMPORTANT 





Legends 























0 0 

0 

0 

Note: 







MT...). 

C-9

DB40 8 


Electrical interlocking by IVE unit with emergency off by shunt release 

ATTENTION 




IMPORTANT 





Legends 



















C- 0 










0 0 

0 

0 

Note: 






= supply voltage of electrical auxiliaries (electrical operation, MX, 

MT...).

DB40 8 3 

Electrical interlocking by IVE unit with emergency off by undervoltage release 

ATTENTION 




IMPORTANT 





Legends 


























0 0 

0 

0 

Note: 






= supply voltage of electrical auxiliaries (electrical operation, MN, 

MT...). 

C-

DB40 8 4 


Automatic-control system without IVE unit for permanent replacement source 

C- 

ATTENTION 




Legends 

QN Normal” source Compact NS630b to 1600 






F2/F3 circuit breaker (high breaking capacity) 

S1 control switches 

KA1 auxiliary relays - UN presence detection 

KA2 auxiliary relays - UR presence detection 

KM1 contactors with 0.25 second delay (for transfer 

to “Replacement” source) 

KM2 contactors with 0.25 second delay (for transfer to “Normal” 

source) 









0 0 

0 

0 

Note: 







MT...).

DB404 56 

Automatic-control system for replacement source generator set 

ATTENTION 




Legends 











KA3 auxiliary relays - generator set startup if UN absent 

KM1 contactors with 0.25 second delay (for transfer 

to “Replacement” source) 


source) 










0 0 

0 

0 

Note: 







MT...). 

C- 3

DB40 8 6 


Electrical interlocking with lockout after a fault 

C- 4 

ATTENTION 




Legends 

QN “Normal” source Masterpact NT or NW 

QR “Replacement” source Masterpact NT or NW 

MCH spring-charging motor 

MX standard opening voltage release 

XF standard closing voltage release 


SDE1 “fault-trip” indication contact 

PF “ready-to-close” contact 


CH “springs charged” indication contact 








2 Masterpact NT or NW devices 





0 0 

0 

0 

Note: 

diagram shown with circuit breakers in connected position, open, 




MCH, MX, XF...).

DB40 8 7 

Electrical interlocking with lockout after a fault and emergency off by shunt release 

ATTENTION 




Legends 

KA3 time delay for genset startup order to avoid starting 

the genset for transient UN disturbances 












MX2 shunt release 












0 0 

0 

0 

Note: 





MCH, MX, XF...). 

C- 5

DB40 8 9 


Electrical interlocking with lockout after a fault and emergency off by undervoltage release 

C- 6 

ATTENTION 




Legends 


























0 0 

0 

0 

Note: 





MCH, MX, MN, XF...).

DB40 8 0 

Electrical interlocking by IVE unit with lockout after a fault 

ATTENTION 




IMPORTANT 





Legends 






















(1) Not to be wired for the “without lockout after a fault” solution. 






0 0 

0 

0 

Note: 






C- 7

DB40 8 


Electrical interlocking by IVE unit with lockout after a fault and emergency off by shunt release 

ATTENTION 




IMPORTANT 





Legends 






















C- 8 


source-changeover systems0= 









0 0 

0 

0 

Note: 





MCH, MX, XF...).

DB40 8 

Electrical interlocking by IVE unit with lockout after a fault and emergency off by undervoltage release 

ATTENTION 




IMPORTANT 





Legends 































0 0 

0 

0 

Note: 





MCH, MX, MN, XF...). 

C- 9

DB40 8 3 


Automatic-control system without IVE unit for permanent replacement source with lockout after a fault 

C- 0 

ATTENTION 




Legends 
















KM1 contactors with 0.25 second delay (for transfer to 

“Replacement” source) 


source) 








0 0 

0 

0 

Note: 





MCH, MX, XF...).

DB40 8 4 

Automatic-control system for replacement source generator set with lockout after a fault 

ATTENTION 




Legends 
















KA3 auxiliary relays - generator set startup if UN absent 

KM1 contactors with 0.25 second delay (for transfer to 

“Replacement” source) 


source) 






0 0 

0 

0 

Note: 






C-

DB40 8 5 


Automatic-control system for permanent replacement source with lockout after a fault (with MN) 

ATTENTION 




Legends 













F2 circuit breaker (high breaking capacity) 


KA1 auxiliary relays 






C- 










0 0 

0 

0 

Note: 





MCH, MN, XF...).

DB40 8 6 

Automatic-control system for replacement source generator set with lockout after a fault (with MN) 

ATTENTION 




Legends 













F2 circuit breaker (high breaking capacity) 



KA2 time delay for genset startup order to avoid starting 

the genset for transient UN disturbances 












0 0 

0 

0 

Note: 





MCH, MN, XF...). 

C- 3

DB 0 734 


2 normal sources and 1 replacement source: electrical interlocking without lockout after a fault 

Legends 

QN... “Normal” source Masterpact NW 

QR “Replacement” source Masterpact NW 






CE “connected-position” indication contact (carriage switch) 



t1 order for transfer from “R” to “N1 + N2” 

(QN1 and QN2 closing time delay = 0.25 sec. minimum) 

t2 order for transfer from “N1 + N2” to “R” 

(QR closing time delay = 0.25 sec. minimum) 

C- 4 



3 Masterpact NW devices 



Normal 1 Normal 2 Replacement 

0 0 0 

0 

0 0 

0 0 

0 0 

Note: 





MCH, MX, XF...).

DB 0 766 

2 normal sources and 1 replacement source: electrical interlocking with lockout after a fault 

ATTENTION 




Legends 













S2 source selection switches 


KA2 auxiliary relays with 10 to 180 sec. time delay 

t1 order for transfer from “R” to “N1 + N2” 

(QN1 and QN2 closing time delay = 0.25 sec. minimum) 

t2 order for transfer from “N1 + N2” to “R” 

(QR closing time delay = 0.25 sec. minimumm) 





0 0 0 

0 

0 0 

0 0 

0 0 

Note: 






C- 5

DB 0 737 


2 normal sources and 1 replacement source: automatic-control system for generator set without lockout 

after a fault (with MN) 

Legends 








CE... “connected-position” indication contact (carriage switch) 








KA3 auxiliary relays with 0.1 to 30 sec. time delay 


KA5 auxiliary relays with 0.25 sec. time delay 


C- 6 






and with associated automatism 


0 0 0 

0 

0 0 

0 0 

0 0 

Note: 





MCH, MN, XF...).

DB 0 739 

2 normal sources and 1 replacement source: automatic-control system for generator set with lockout after 

a fault (with MN) 

ATTENTION 




Legends 




























0 0 0 

0 

0 0 

0 0 

0 0 

Note: 





MCH, MN, XF...). 

C- 7

DB 0 74 


3 sources with only 1 device closed: electrical interlocking without lockout after a fault 

Legends 

QS... “Source” Masterpact NW 









t1 order for transfer to “Source 1” 

(QS1 closing time delay = 0.25 sec. minimum) 





C- 8 






Source 1 Source 2 Source 3 

0 0 0 

0 0 

0 0 

0 0 

Note: 





MCH, MX, XF...).

DB 0 743 

3 sources with only 1 device closed: electrical interlocking with lockout after a fault 

ATTENTION 




Legends 























Source 1 Source 2 Source 3 

0 0 0 

0 0 

0 0 

0 0 

Note: 






C- 9

DB 0 745 


2 sources and 1 coupling: electrical interlocking without lockout after a fault 

Legends 


QC “Coupling” Masterpact NW 









t1 coupling order for “Source 1 failure” 

(QC closing time delay = 0.25 sec. minimum) 



t3 coupling order for “Source 1 restored” 


t4 coupling order for “Source 2 restored “ 


C-30 






Source 1 Source 2 Coupling 

0 0 0 

0 

0 

0 

0 0 

0 0 

0 0 

Note: 





MCH, MX, XF...).

DB 0 747 

2 sources and 1 coupling: electrical interlocking with lockout after a fault 

ATTENTION 




Legends 
















t3 coupling order for “Source 1 restored” 


t4 coupling order for “Source 2 restored “ 









0 0 0 

0 

0 

0 

0 0 

0 0 

0 0 

Note: 






C-3

DB 0 749 


2 sources and 1 coupling: automatic-control system with lockout after a fault 

C-3 

ATTENTION 




Legends 







SDE1 “fault trip” indication contact 






















0 0 0 

0 

0 

0 

0 0 

0 0 

0 0 

Note: 





MCH, MX, XF...).

DB 0 75 

Source-changeover system with BA controller 

Legends 

Q1 circuit breaker supplying and protecting the automatic- 

control circuits for the “Normal” source 


control circuits for the “Replacement” source 


BA automatic controller 



with automatic controllers 



DB 0 753 

DB 0 755 

Coupling 

Transfer conditions 

Terminals 20 and 21: 

additional control contact (not part of 

controller). 

Tests on “Normal” and “Replacement” 

source voltages 

The single-phase check for UN and UR 

is implemented across terminals and 5 

of circuit breakers Q and Q . 

Note: 



C-33

DB 0 757 


Source-changeover system with UA controller 

Legends 


control circuits for the “Normal” source 


control circuits for the “Replacement” source 


UA automatic controller 


C-34 





DB 0 758 

DB 0 759 

DB 0 76 

Load shedding and genset management 

Transfer conditions 

Terminals 20 and 21: 

additional control contact (not part of 

controller). 

Tests on “Normal” and “Replacement” 

source voltages 

“Normal” source voltage UN test 

“Replacement” source voltage UR test 

The single-phase check for UR is 

implemented across terminals and 5 

of circuit breaker Q . 

Note: 



DB 0 76 

Controller settings Using communication functions 

Tests on “Normal” source voltage 

A = 0 single-phase test, 

A = three-phase test. 

Voluntary transfert (e.g. for energy management) 

b action in the event of genset failure 

B = 0 circuit breaker N opens, 

B = circuit breaker N remains closed. 

b 

maximum permissible genset startup time (T6) 

C = 0 T = 0 s, 

C = T = 80 s. 

After this time has elapsed, the genset is considered to 

have failed. 

DB 0 763 

Controller settings 

The address of the UA 150 controller is set using 

the two BBus dials. 

C-35

DB40 8 7 


Electrical interlocking with lockout after a fault 

ATTENTION 




Legends 











Wiring colour codes Note: 



C-36 










0 0 

0 

0 


charged, and ready to close.











Source-changeover systems for 2 devices D-2 

Interpact INS40 to INS 500 and INV 00 to INV 500 D- 

Compact NSX 00 to NSX630 D-3 

Compact NS630b to NS 600 circuit breakers and switch-disconnectors D-5 

Masterpact NT circuit breakers and switch-disconnectors D-7 

Source-changeover systems for 2 or 3 devices D-8 

Masterpact NW circuit breakers and switch-disconnectors D-8 

Order forms for source-changeover systems 

for 2 devices D-10 

Interpact INS40 to INS630 Switch-disconnectors D- 0 

Compact NSX 00 to NSX630 / Circuit breakers and switch-disconnectors D- 

Compact NS630b to NS 600 / Circuit breakers and switch-disconnectors D- 4 

Masterpact NT or NW / Circuit breakers and switch-disconnectors D- 6 

Order forms for source-changeover systems 

for 3 devices D-18 

Masterpact NW / Circuit breakers and switch-disconnectors D- 8 

D-

DB 077 0 

DB404077 

DB404078 

DB 077 

DB404079 

DB 0 549 

DB404080 

DB 0 06 

DB40408 

DB4039 



Manual source-changeover systems Interpact INS40 to INS630 and INV100 to INV630 

Interlocking for rotary handle 

D- 

ø5...8 

Mechanical device for INS40 to INS 60 

equipped with an extended rotary handle 

Mechanical device for INS 50- 00 to INS 50/INV 00 to INV 50 

equipped with a direct or extended rotary handle 

Mechanical device for INS/INV3 0 to INS/INV630 

equipped with a direct or extended rotary handle 

Complete assembly source-changeover systems Interpact INS250 to INS630 

3P 4P 

3/4P 

28953 

31073 

31074 

With Interpact INS 50- 00A 31140 31141 



With Interpact INS 50 31146 31147 

With Interpact INS3 0 31148 31149 

With Interpact INS400 31150 31151 

With Interpact INS500 31152 31153 

With Interpact INS630 

Locking for INS complete source changeover assembly 

31154 31155 

Handle locking by to 3 padlocks (in OFF position) Built in 

By keylock Keylocking device 31097 

+ Ronis 35 B.500 keylock 41940 

or + Profalux KS5 B 4 D4Z keylock 42888 

Rotary handle 

Extended front control for complete source changeover assembly 31055 

Manual source-changeover systems Interpact INS250 to INS2500 and INV250 to INV2500 by keylock 

Interlocking 

Connection accessories 

Downstream coupling accessories 

Locking device for Ronis/Profalux keylocks 

on INS 50- 00 to INS 50/INV 00 to INV 50 


on INS/INV3 0 to INS/INV630 


on INS/INV630b to INS/INV 500 

3/4P 

x 31087 

x 31088 

x 31291 

+ Ronis 35 B.500 keylock ( keylocks / key) 41950 

or + Profalux KS5 B 4 D4Z keylock ( keylocks / key) 42878 

3P 4P 

Short terminal shields INS 50 ( pair) 29322 29322 

INS3 0 to INS630 ( pair) 32563 32563 

“Normal” source / 

“replacement” source 


for 2 devices 

Interpact INS40 to INS2500 

and INV100 to INV2500 

INS 50 29358 29359 

INS3 0 to INS630 32619 32620 

Long terminal shields INS 50 ( pair) 29324 29324 

INS3 0 to INS630 ( pair) 32583 32583

DB404083 

DB404084 

DB404085 

DB404086 

DB404087 

DB4039 

Manual source changeover 


Key lock interlocking 

Remote controlled source changeover 

Plate + IVE unit 

0 . OFF 

0 . OFF 

MERLIN GERIN 

MERLIN GERIN 

multi 9 

multi 9 

P25M 

P25M 

660V 

660V 

AC3-IEC292-1 

AC3-IEC292-1 

Test 

Test 

For toggle controlled circuit breakers NSX 00... 50 29354 

NSX400...630 32614 

For rotary handled circuit breakers NSX 00... 50 29369 

NSX400...630 32621 

For rotary handled or remote controlled circuit breakers 

locks, key Ronis 35 B.500 41950 

Profalux KS5 B 4 D4Z 42878 

Source “normal”/source “replacement” (identical voltages) 

NSX100...250/NSX100...250 

24 to 250 V DC 48 to 415 V AC 50/60 Hz 

440 V 60 Hz 

Plate + IVE unit (1) 29351 29350 

Plate 29349 29349 

IVE unit 29356 29352 

Auxiliary switches OF + SDE 4 x 29450 4 x 29450 

Spare wiring system (device/IVE unit) 29365 29365 

Back sockets option add: Only long RC (2) (2) 

Plug in base option add: 

NSX400...630/NSX100...630 

Plug in kit (2) (2) 

Plate + IVE unit (1) 32611 32610 

Plate 32609 32609 

IVE unit 29356 29352 

Auxiliary switches OF + SDE 4 x 29450 4 x 29450 

Spare wiring system (device/IVE unit) 29365 29365 

Back sockets option add: Only long RC (2) (2) 

Plug in base option add: Plug in kit (2) (2) 

Adaptator kit for NSX 00... 50 x 32618 x 32618 

Control unit option 

110/127 V AC 50/60 Hz 220/240 V AC 50/60 Hz 380/415 V AC 50/60 Hz 

440 V 60 Hz 

ACP + controller BA (1) 29470 29471 

Plate ACP 29363 29364 

Controller BA 29376 29377 

ACP + controller UA (1) 29448 29472 29473 

Plate ACP 29447 29363 29364 

Controller UA 29446 29378 29380 

ACP + controller UA 50 (1) (communication option) 29474 29475 

Plate ACP 29363 29364 

Controller UA 50 

Wiring cable between BA/UA and ACP/IVE 

29379 29381 

Wiring cable ( meter) 29368 29368 

Communication module 

N 

DC150 

BBus 

JBus 

OK 

com. com. 

error 

24V 

error 

N°1 N°2 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 

DC 50 data concentrator 

0- 40 V AC / 5- 5 V DC 

Compact NSX100 to NSX630 

(1) The supply voltages BA/UA controller, ACP plate, IVE unit and the remote control must be identical whatever the source changeover type. 

(2) See products pages. 

50823 

D-3



DB 0 06 

DB40480 

DB4039 

DB404088 

DB404089 

Connection accessories 

Downstream coupling accessories 

D-4 

3P 4P 

Short terminal shields ( pair) NSX 00... 50/NSX 00... 50 29321 29322 

NSX400...630/NSX400...630 32562 32563 

Source “normal”/source 

“replacement” 

NSX 00... 50/ 

NSX 00... 50 

50 A 29358 29359 

NSX400...630/ 

NSX400...630 

630 A 32619 32620 

Long terminal shields ( pair) NSX 00... 50/NSX 00... 50 29324 

NSX400...630/NSX400...630 32565 

Typical composition of remote controlled source changeover 

Remote controlled source changeover 

Associated control unit 

MERLIN GERIN 

Test 

0 . OFF 

MERLIN GERIN 

Test 

0 . OFF 

multi 9 

multi 9 

P25M 

P25M 

660V 

660V 

AC3-IEC292-1 

AC3-IEC292-1 


for 2 devices 

Compact NSX100 to NS630 (cont.) 

normal device N ( ) 

+ replacement device R ( ) 

+ remote controls (3) 

+ plate with interlocking (4) with IVE unit (5) and its wiring (8) 

+ plug-in kits (if plug-in version) 

+ adaptor kit for NSX 00... 50 plug-in (if NSX400...630 with NSX 00... 50) 

+ auxilary switches (6) 

x ( OF + SDE) for Compact NSX 00...630 

+ downstream coupling accessory (7) for Compact NSX 00...630 (option) 

+ long RC (if back connection) 

IVE unit voltages and remote controls are identical. 

source changeover without associated control unit 

+ ACP (9) with BA controller ( 0) 

Or + ACP (9) with UA controller ( ) 

Or + ACP (9) with UA 50 controller ( ) 

+ extension ( ) for remote UA/BA controller connection on front of switchboard 

IVE unit voltages + remote control + ACP + BA or UA controller are identical.

DB404090 

DB404091 

DB404092 

Interlocking for source-changeover systems 


For 2 devices with extended rotary handles 33890 

Interlocking using connecting rods for Compact electrically-operated devices 

Complete assembly with 2 adaptation fixtures + rods 

2 Compact fixed devices 33910 

2 Compact withdrawable devices 33913 

O 

I 

push OFF 

push ON 

O OFF 

discharged 

O 

I 

push OFF 

push ON 

O OFF 

discharged 

Interlocking using cables for Compact electrically-operated devices 

Complete assembly with 2 adaptation fixtures + cables 

2 Compact fixed devices 33911 

2 Compact withdrawable devices 33914 

1 Compact fixed + 1 Compact withdrawable device 33915 

O 

I 

push OFF 

push ON 

O OFF 

discharged 

O 

I 

push OFF 

push ON 

O OFF 

discharged 

Compact NS630b to NS1600 

circuit breakers and switch-disconnectors 

D-5

DB404093 

DB404087 

DB4039 



Associated controller 

The automatic-control option includes: 

b an IVE electrical-interlocking unit 

b an ACP control plate 

b a BA or UA controller, depending on the required functions 

b a UA/BA adapter kit. 

Note: the circuit breaker auxiliaries (MCH, MX, XF) and the automatic-control components (IVE, ACP, UA or BA) must have the same voltages. 

IVE electrical-interlocking unit 48/415 V AC 50/60 Hz 

440 V 60 Hz 

For devices 29352 

Wiring kit for connection of fixed/withdrawable devices to the IVE unit 54655 

Control unit option 110/127 V AC 50/60 Hz 220/240 V AC 50/60 Hz 380/415 V AC 50/60 Hz 

440 V 60 Hz 


Plate ACP 29363 29364 



Plate ACP 29447 29363 29364 

Controller UA 29446 29378 29380 


Plate ACP 29363 29364 

Controller UA 50 29379 29381 

D-6 

0 . OFF 

0 . OFF 

MERLIN GERIN 

MERLIN GERIN 

multi 9 

multi 9 

P25M 

P25M 

660V 

660V 

AC3-IEC292-1 

AC3-IEC292-1 

Test 

Test 


N 

DC150 

BBus 

JBus 

OK 

com. com. 

error 

24V 

error 

N°1 N°2 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 


0- 40 V AC / 5- 5 V DC 


for 2 devices 

Compact NS630b to NS1600 circuit 

breakers and switch-disconnectors (cont.) 

(1) The supply voltages of the BA/UA controller, ACP plate, IVE unit and circuit breaker operating mechanism must be identical whatever the type of sourcechangeover 

system. 

50823

DB404094 

DB404093 

DB404087 

DB4039 

Interlocking for source-changeover systems 


Complete assembly with adaptation fixtures + rods 

Masterpact NT fixed devices 33912 

Masterpact NT drawout devices 33913 

Interlocking using cables (*) 

Choose adaptation fixtures ( for each breaker + set of cables) 

adaptation fixture for Masterpact NT fixed devices 33200 

adaptation fixture for Masterpact NT drawout devices 33201 

set of cables 33209 

(*) Can be used with any combination of NT or NW, fixed or drawout devices. 

Associated controller 








440 V 60 Hz 

for devices 29352 

wiring kit for connection of fixed/drawout devices to the IVE unit 54655 


440 V 60 Hz 


Plate ACP 29363 29364 



Plate ACP 29447 29363 29364 

Controller UA 29446 29378 29380 


Plate ACP 29363 29364 

Controller UA 50 29379 29381 

0 . OFF 

0 . OFF 

MERLIN GERIN 

MERLIN GERIN 

multi 9 

multi 9 

P25M 

P25M 

660V 

660V 

AC3-IEC292-1 

AC3-IEC292-1 

Test 

Test 


N 

DC150 

BBus 

JBus 

OK 

com. com. 

error 

24V 

error 

N°1 N°2 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 


0- 40 V AC / 5- 5 V DC 

Masterpact NT circuit breakers 

and switch-disconnectors 

(1) The supply voltages of the BA/UA controller, ACP plate, IVE unit and circuit breaker operating mechanism must be identical whatever the type 

of source-changeover system. 

50823 

D-7

DB404095 

DB404093 

DB404087 



Interlocking for source-changeover systems for 2 devices 

Interlocking of 2 devices using connecting rods 

D-8 

Complete assembly with 2 adaptation fixtures + rods 

2 Masterpact NW fixed devices 48612 

2 Masterpact NW drawout devices 48612 

Can be used with 1 NW fixed + 1 NW drawout. 

Interlocking of 2 devices using cables (*) 

Choose 2 adaptation fixtures (1 for each breaker + 1 set of cables) 

1 adaptation fixture for Masterpact NW fixed devices 47926 

1 adaptation fixture for Masterpact NW drawout devices 47926 

1 set of 2 cables 33209 

(*) Can be used with any combination of NT or NW, fixed or drawout devices. 

Associated controller for 2 devices 








440 V 60 Hz 

for 2 devices 29352 

wiring kit for connection of 2 fixed/drawout devices to the IVE unit 54655 


440 V 60 Hz 


Plate ACP 29363 29364 



Plate ACP 29447 29363 29364 

Controller UA 29446 29378 29380 

ACP + controller UA150 (1) (communication option) 29474 29475 

Plate ACP 29363 29364 

Controller UA150 29379 29381 

(1) The supply voltages of the BA/UA controller, ACP plate, IVE unit and circuit breaker operating mechanism must be identical whatever the type of sourcechangeover 

system. 

0 . OFF 

0 . OFF 

MERLIN GERIN 

MERLIN GERIN 

multi 9 

multi 9 

P25M 

P25M 

660V 

660V 

AC3-IEC292-1 

AC3-IEC292-1 

Test 

Test 


for 2 or 3 devices 

Masterpact NW circuit breakers 

and switch-disconnectors

DB403922 


DC150 

OK 

error 

N 

N°1 N°2 

BBus 

JBus 

com. com. 

24V 

error 

9600 

19200 

5 

3 7 

1 9 

N°1 

15 

13 

5 

3 7 

1 9 N°2 

15 

13 

DC150 data concentrator 

110-240 V AC / 115-125 V DC 

Interlocking for source-changeover systems for 3 devices 

Interlocking of 3 devices using cables 

Choose 3 adaptation fixtures (1 complete set with 3 adaptation fixtures + cables) 

3 sources, only 1 device closed, fixed or drawout devices 48610 

2 sources, 1 coupling, fixed or drawout devices 48609 

2 normal, 1 replacement source, fixed or drawout devices 48608 

50823 

D-9



D- 0 


for 2 devices 


Switch-disconnectors 

To indicate your choices, check the applicable square boxes and enter the 

appropriate information in the rectangles . 

Mechanical interlocking of two INS40 to INS630 devices 

Devices with front rotary handles, mounted side by side 

Two devices with direct rotary handles 

INS 50 INS3 0/400/500/630 

Two devices with extended rotary handles 

INS40/63/80 INS 00/ 5/ 60 

INS 50 INS3 0/400/500/630 

Downstream coupling 

accessory 

INS 50 INS3 0/400/500/630 

Long terminal shields INS 50 INS3 0/400/500/630 


INS 50- 00 A INS 50- 60 A 

INS 50- 00 A INS 50- 50 A 

INS3 0 INS400 

INS500 INS630

To indicate your choices, check the applicable square 

boxes and enter the appropriate information in the 

rectangles . 

(one sheet per device, make copies if necessary) 

Indication and measurements 

4P ammeter module For INS 50 Rating 00 A 

50 A 

50 A 

Device identification: Adaptation kit required for direct handles 

Q 1 - NORMAL SOURCE For INS3 0/630 Rating 400 A 

Q 2 - REPLACEMENT SOURCE 600 A 

Switch-disconnector 4P current-transformer For INS 50 Rating 00 A 

Interpact type INS40/63/80 

module 

50 A 

INS100/125/160 50 A 

INS250 For INS3 0/630 Rating 400 A 

INS320/400/500/630 600 A 

Rating A Auxiliary contact For INS40/ 60 OF/CAF/CAO Standard 

Number of poles 3 or 4 Low level 

Connections For INS 50/630 OF/CAM Standard 

Front connection Standard Low level 

Rear connection short long 

Rotary handles 

Extended front handles INS40 to INS 60 Black Red on yellow front 

INS40/80 Distribution 3x 6v rigid/ 0v flexible INS 50 Black Red on yellow front 

connectors INS3 0 to INS630 Black Red on yellow front 

INS 00/ 60 Snap-on y 95v For complete changeover assembly INS 50 

connectors Distribution 4x 5v rigid/ 6v flexible INS3 0/630 

INS 50 Snap-on .5v to 95v (< 60 A) Locking of rotary handles 

connectors Snap-on 0v to 85v (< 50 A) Padlocking to 3 padlocks (in OFF position) 

Voltage tap connector for 85 v 

connector 

Distribution 6x .5v to 35v rigid 

with interphase barriers 

INS3 0/630 cable 35v to 300v connectors cables 35v to 40v Keylocking Keylock adapter (keylock not included) 

Keylocks Ronis 35 B.500 Profalux KS5 B 4 D4Z 

Clips for connectors Set of 0 Installation accessories 

Front-panel escutcheon For switch-disconnectors 

For ammeter module, IP40 

Voltage tap connector for 85 v 

connector 

Distribution “Distribloc” 5 A 60 A 

blocks Multi-stage 5 A 60 A 

“Polybloc” 60 A 50 A 

Rt-angle extension Set of 3 or 4 50 A 630 A 

Straight extension INS 50 

Edgewise ext. INS630 

Spreader INS 50 (45 mm) 

Front alignment base 

INS3 0/630 5 .5 mm 70 mm 

One-piece INS 50 INS630 

CU cable lugs INS 00/ 60 For 95 v cable 

supplied with INS 50 For 0 v cable 

or 3 inter-phase For 50 v cable 

barriers For 85 v cable 

INS3 0/630 For 40 v cable 

For 300 v cable 

AL cable lugs INS 50 For 50 v cable 

supplied with For 85 v cable 

or 3 inter-phase INS3 0/630 For 40 v cable 

barriers For 300 v cable 

Terminal shrouds INS40/63/80 INS 00/ 5/ 60 

Terminal shields INS40/63/80 INS 00/ 5/ 60 

INS 50 Short Long 

INS3 0/630 Short Long 

Long for 5 .5 mm spreaders 

Interphase INS 00/ 60 Set of 6 

barriers INS 50 Set of 6 

INS3 0/630 Set of 6 


Switch-disconnectors 

D-



D- 


for 2 devices 

Compact NSX100 to NSX630 / Circuit 

breakers and switch-disconnectors 



Diagram for two Compact NSX devices 

Without automatic control, without emergency off auxiliaries (no. 5 0 77) 

Without automatic control, with emergency off by MN (no. 5 0 78) 

Without automatic control, with emergency off by MX (no. 5 0 79) 

Mechanical interlocking of two NSX100 to NSX630 devices 

(fixed, plug-in or withdrawable) 

Manually operated devices, mounted side by side: 

Two devices with toggles 

Two devices with rotary handles 

Mechanical and electrical interlocking of two NSX100 to NSX630 devices 

(fixed or plug-in) 

Electrically operated devices, mounted side by side: 

Select base plate + IVE unit, the 4 auxiliary contacts and the options / accessories 

Base plate + IVE unit Identical voltages: 48 to 4 5 V AC 50/60 Hz 

4 to 50 V DC 440/480 V AC 60 Hz 

“Normal” NSX 00/ 50 “Replacement” NSX 00/ 50 

“Normal” NSX400/630 “Replacement” NSX400/630 

“Normal” NSX400/630 “Replacement” NSX 00/ 50 

Adapter kit for NSX400/630 with NSX 00/ 50 (plug-in) 

Auxiliary contacts OF + SDE (mandatory) Quantity 

Options Long rear connections Plug-in base 

Downstream coupling accessory 3P NSX 00/ 50 

4P NSX400/630 

Prefabricated wiring Between device and IVE Quantity 

Automatic-control option 

Power supply 0/ 40 V - 50/60 Hz: ACP + BA controller 

ACP + UA controller 

ACP + UA 50 controller 

Power supply 380/4 5 V - 50/60 Hz and 440 V - 60 Hz: ACP + BA controller 



4

Compact NSX100 to NSX630 / Circuit 


(One sheet per device, make copies if necessary) Indication and measurement 

Name of customer: Ammeter module Standard 3P 4P 

Address for delivery: I max 3P 

Current-transformer module 3P 4P 

Requested delivery date: Current-transformer module + TCU 3P 4P 

Customer order no.: Insulation-monitoring module 

Voltage-presence indicator 

3P 4P 

To indicate your choices, check the applicable square boxes Auxiliary contact OF SD SDE SDV Standard 

and enter the appropriate information in the rectangles OF SD SDE SDV Low level 

Q 1 - NORMAL SOURCE 

SDE adapter (TM, MA or Micrologic trip units) 

SDX module 

Q 2 - SOURCE REMPLACEMENT Remote operation 

Circuit breaker or switch disconnector Electrical operation Motor mechanism AC DC V 

Compact type NSX100/160/250 NSX400/630 Voltage releases Instantaneous MX AC DC V 

Rating A Instantaneous MN AC DC V 

Circuit breaker B, F, N, H, S, L Fixed time delay MN AC DC V 

Switch-discon. NA Adjust. time delay MN AC DC V 

No. of poles 2, 3 or 4 Rotary handles 

No. of poles 

protected 

2d, 3d or 4d Direct Black Red and yellow front 

Fixed device Front connections MCC conversion access. CNOMO conversion access. 

Plug-in/withdr. Plug-in Withdrawable Extended Black Red and yellow fron 

Earth-leakage 

protection 

ME, MH, MB Telescopic handle for withdrawable device 

Vigi module Voltage V Indication auxiliary early-break switch early-make switches 

4P option on 3P NSX Locking 

Trip unit Toggle ( to 3 padlocks) Removable Fixed 

Thermal-mag. TMD rating ( 6 … 50 A) Rotary handle Keylock adapter (keylock not included) 

TMG rating ( 6 … 63 A) Keylocks Ronis 35 B.500 Profalux KS5 B 4 D4Z 

MA rating ( ,5 … 0 A) Motor mechanism Keylock adapter + keylock Ronis (special) NSX 00/ 50 

Electronic Micrologic 2.2 Micrologic 2.3 Keylock adapter (keylock not included) NSX400/630 

Micrologic 2.2 G Micrologic 2.3 AB Keylocks Ronis 35 B.500 Profalux KS5 B 4 D4Z 

Micrologic 2.2 AB Micrologic 5.3 A Interlocking 

Micrologic 5.2 A Micrologic 5.3 E Mechanical Toggle operated Rotary Handle 

Micrologic 5.2 E Micrologic 5.3 A-Z By key ( keylocks, Locking kit without locks 

Micrologic 5.2 A-Z Micrologic 6.3 A key) for rotary handle Keylocks Ronis 35 B.500 Profalux KS5 B 4 D4Z 

Micrologic 6.2 A Micrologic 6.3 E 

Micrologic 6.2 E Micrologic 1.3 M Installation accessories 

Micrologic 2.2 M Micrologic 2.3 M IP30 escutcheon for all types (toggle/rotary handle/motor mechanism) 

Micrologic 6.2 E-M Micrologic 6.3 E-M IP30 escutcheon (with access to toggle + trip unit) 

Module SDTAM IP30 escutcheon for Vigi module 

External neutral CT IP40 escutcheon for all types (toggle/rotary handle/motor mechanism) 

4 V DC power supply connector IP40 escutcheon for Vigi module 

ZSI wiring accessory for NS630b NW/NT IP40 escutcheon for Vigi or ammeter module 

External power 

supply module 

4 V DC 

4-30 V DC 48-60 V DC Toggle cover 

00- 5 V AC 0- 30 V AC Sealing accessories 

00- 40 V AC 380-4 5 V AC DIN rail adapter 

Battery module 3P 60 mm busbar adapter 

Connection Plug-in / withdrawable configuration accessories 

Rear-connection Short Long Auxiliary connections automatic connector fixed part with 9 wires (for base) 

kit 

NSX 00/ 50 

Mixed automatic connector moving part with 9 wires (for circuit breaker) 

connectors Snap-on 5v to 95v (< 50 A) 9-wire manual auxiliary connector (fixed + moving) 

Snap-on 0v to 85v (< 50 A) Plug-in base 

accessories 

Long insulated terminals Set of 

Snap-on .5 v to 95 v (< 60 A) sup. for 3 auto. conn. moving parts sup. for auto. conn. 

Distribution 6 x .5v to 35v IP4 shutters for base 

Aluminium cables 50v to 0v Chassis accessories Escutcheon collar Toggle Vigi 

cable 35v to 300v Locking kit (keylock not included) 

cables 35v to 40v carriage switches (conn./disconnected position indication) 

NSX400/630 

connectors 

Right-angle terminal extensions Parts or plug-in 

Withdrawable kits 

Plug-in base FC/RC P 3P 4P 

Straight extensions NSX 00/ 50 Set of two power connections Standard Vigi 

Edgewise extensions 45° term. ext. Dbl.-L term. ext. Safety trip for advanced opening 

Spreader NSX 00/ 50 (one piece) (45 mm) For 3P/4P chassis Moving part 

NSX400/630 (5 .5 mm) (70 mm) Fixed part 

Cu cable lugs NSX 00/ 50 0v 50v 85v Adaptateur pour socle (pour cache-bornes ou séparateurs de phases) 

NSX400/630 40v 300v Communication 

Al cable lugs NSX 00/ 50 50v 85v NSX Cord L = 0.35 m NSX Cord L = .3 m 

NSX400/630 40v 300v NSX Cord U > 480 V CA L = 0.35 m NSX Cord L = 3 m 

V mesrt Input 

for connector 

For lugs NSX 00/ 50 y 85 v BSCM (NSX400/630) 

For lugs NSX400/630 Communicating motor mechanism 0- 40V 

Terminal shields NSX 00/ 50 Short Long Switchboard front display module FDM 

NSX400/630 Short Long FDM mounting accessory 

Long for 5 .5 mm spreaders Modbus interface 

Interphase barriers Lot de 6 Stacking accessory 

insulating scrn. NSX 00/ 50 NSX400/630 Pas de 70 ULP line termination 

Test tool RJ45 connectors 

Wire length RJ45 L = 0.3 m Wire length RJ45 L = 0.6 m 

Pocket battery for Micrologic female/female 

Wire length RJ45 L = m Wire length RJ45 L = m 

Maintenance case 

USB maintenance interface 

Wire length RJ45 L = 3 m Wire length RJ45 L = 5 m 

Power supply 0- 40 V AC 

Spare Micrologic cord 

D- 3



D- 4 


for 2 devices 

Compact NS630b to NS1600 / Circuit 




Diagram for two Compact NS devices 

Electrical interlocking with lockout after fault: 

Permanent replacement source (without IVE unit) (no. 5 0 80) 

With emergency off by MX (without IVE unit) (no. 5 0 8 ) 

With emergency off by MN (without IVE unit) (no. 5 0 8 ) 

Permanent replacement source (with IVE unit) (no. 5 0 83) 

With emergency off by MX (with IVE unit) (no. 5 0 84) 

With emergency off by MN (with IVE unit) (no. 5 0 85) 

Automatic control without lockout after fault: 


Engine generator set (without IVE unit) (no. 5 0 87) 

Interlocking using connecting rods between two NS630b to NS1600 devices 

Manually operated devices installed side-by-side: 

For two fixed NS devices with extended rotary handles 

Electrically operated devices installed one above the other: 

Select a complete set including two adaptation fixtures and the connecting rods 

Complete set for: fixed NS devices 

withdrawable NS devices 

Interlocking using cables between two NS630b to NS1600 devices 

Electrically operated devices installed one above the other or side-by-side: 

Select a complete set including two adaptation fixtures and the cables 

Complete set for: fixed NS devices 

withdrawable NS devices 

fixed NS device + withdrawable NS device 

Electrical interlocking between two NS630b to NS1600 devices 

IVE unit 48/4 5 V - 50/60 Hz and 440 V - 60 Hz 

wiring kit for connection between fixed / withdrawable devices to the IVE unit 


Power supply 0 V - 50/60 Hz: ACP + BA controller 








ACP + UA 50 controller



rectangles . 


Indication contacts 

SD trip indication (maximum ) 

6 A- 40 V AC Low level 

SDE fault-trip indication (maximum ) (SDE integrated in electrically operated devices) 

Device identification: 6 A- 40 V AC Low level 

Q 1 - NORMAL SOURCE OF ON/OFF indication contacts (maximum 3) 

Q 2 - REPLACEMENT SOURCE 6 A- 40 V AC qty Low level qty 

Circuit breaker or switch-disconnector Carriage switches (possible combinations: 3 CE, CD, CT) 

Compact type NS630b to NS1600 CE - “connected” position 6 A- 40 V AC qty Low level qty 

Rating A CD - “disconnected” position 6 A- 40 V AC qty Low level qty 

Circuit breaker N, H, L CT - “test” position 6 A- 40 V AC qty Low level qty 

Switch-disconnector NA Auxiliary terminals for chassis alone Jumpers (set of 0) 

Number of poles 3 or 4 3-wire terminal (30 parts) 6-wire terminal ( 0 parts) 

Device Fixed Remote operation 

Withdr. chassis Electrical operation Standard Communicating 

Withdr. without chassis 

(moving part only) 

Compact NS630b to NS1600 / Circuit 


Power supply AC DC V 

Voltage releases MX AC DC V 

Chassis alone without connections MN AC DC V 

Micrologic control unit MN delay unit Adjustable Non- 

Basic protection 2.0 5.0 

adjustable 

A - ammeter Rotary handles for fixed and withdrawable device 

2.0 5.0 6.0 7.0 Direct Black Red on yellow front 

AD - external power-supply module V CNOMO conversion access. 

TCE - external sensor (CT) for neutral protection Extended Black Red on yellow front 

Rectangular sensor 80 x 5 mm Telescopic handle for withdrawable device 

TCW - external sensor for SGR protection Indication auxiliary 6 A- 40 V AC early-make switches 

LR - long-time rating plug Standard 0.4 to Ir early-break switches 

Low setting 0.4 to 0.8 Ir Locking 

High setting 0.8 to Ir Toggle ( to 3 padlocks) Removable system Fixed system 

LT OFF Rotary handle using OFF position ON and OFF positions 

Communication a keylock 

Ronis 35 B.500 Profalux KS5 B 4 D4Z 

COM module Jbus/ Manual operation Keylock kit (without keylock) 

Modbus Electrical operation For electrically operated VBP - ON/OFF pushbutton locking 

Digipact Manual operation devices 

OFF position locking: 

Electrical operation VCPO - by padlocks 

Modbus Eco COM module 

VSPO - by keylocks 

(for switchboard display units) 

Keylock kit (w/o keylock) Profalux Ronis 

Connections keylock Profalux Ronis 

Horizontal rear 

Top Bottom identical keylocks, key Profalux Ronis 

connections 

Chassis locking in “disconnected” position: 

Vertical rear connections Top Bottom VSPD - by keylocks Keylock kit (w/o keylock) Profalux Ronis 

Front connections Top Bottom Kirk Castell 

4x 40v bare cable 

NS - FC fixed keylock Profalux Ronis 

connectors + shields 

identical keylocks, key Profalux Ronis 

Long connection shields NS - FC fixed keylocks, different keys Profalux Ronis 

Vertical-connection NS - FC fixed, withdr. Optional connected/disconnected/test position locking 

adapters 

VPEC - door interlock On right-hand side of chassis 

Cable-lug adapters NS - FC fixed, withdr. On left-hand side of chassis 

Arc chute screen NS - FC fixed VPOC - racking interlock 

Interphase barriers NS - FC fixed, withdr. VDC - mismatch protection 

Spreaders NS - FC fixed, withdr. Accessories 

VO - safety shutters on NS - FC fixed CDM - mechanical operation counter 

chassis 

CDP - escutcheon 

CP - transparent cover for escutcheon 

OP - blanking plate for escutcheon 

Mounting brackets for fixed NS for mounting on horizontal 

plane 

Test kits Mini test kit Portable test kit 

D- 5



D- 6 


for 2 devices 

Masterpact NT or NW / Circuit breakers 




Diagram for 2 Masterpact NT/NW devices 

Electrical interlocking with lockout after fault: 


With emergency off by MX (without IVE unit) (no. 5 0 40) 

With emergency off by MN (without IVE unit) (no. 5 0 4 ) 

Permanent replacement source (with IVE unit) (no. 5 0 4 ) 

With emergency off by MX (with IVE unit) (no. 5 0 43) 

With emergency off by MN (with IVE unit) 

Automatic control without lockout after fault: 

(no. 5 0 44) 


Engine generator set (without IVE unit) 

Automatic control with lockout after fault: 

(no. 5 56 7) 

Permanent replacement source (with IVE unit) (no. 5 56904) 

Engine generator set (with IVE unit) (no. 5 56905) 

BA/UA controller (with IVE unit) (no. 5 56903) 

Interlocking using connecting rods (NT/NW devices one above the other) 

Select a complete set including two adaptation fixtures and the connecting rods 

Complete set for: drawout NT devices fixed NT devices 

drawout NW devices fixed NW devices 

fixed NT device + fixed NW devices 

drawout NT device + drawout NW device 

Interlocking using cables (NT/NW devices one above the other or side-by-side) 

Select two adaptation fixtures (one for each device) and a set of two cables 

Adaptation fixture for: fixed NT device 

qty 

(NT/NW fixed and drawout 

devices may be mixed) 

drawout NT device 

fixed NW device 

qty 

qty 

drawout NW device 

set of cables (for two devices) 

qty 

Electrical interlocking 2 Masterpact NT/NW devices 

IVE unit 48/4 5 V - 50/60 Hz and 440 V - 60 Hz 

wiring kit for connection between fixed / withdrawable devices to the IVE unit 







ACP + UA 50 controller



rectangles . 



OF - ON/OFF indication contacts 

Standard 4 OF 6 A- 40 V AC ( 0 A- 40 V AC and low-level for NW) 

Additional block of 4 OF for NW max. qty 

Device identification: EF - combined “connected/closed” contacts 

Q 1 - NORMAL SOURCE EF 6 A- 40 V AC for NW max. 8 qty 

Q 2 - REPLACEMENT SOURCE EF low-level for NW max. 8 qty 

Circuit breaker or switch-disconnector SDE - “fault-trip” indication contact 

Masterpact type NT NW Standard SDE 6 A- 40 V AC 

Rating A Additional SDE 6 A- 40 V AC SDE Low level 

Sensor rating A Programmable contacts M C contacts 6 M6C contacts 

Circuit breaker N1, H1, H2, H3, L1 Carriage switches 6 A- 40 V AC Low level 

Switch-disconnector NA, HA, HF, ES, 

HA10 (NW) 

CE - “connected” position max. 3 for NW / NT qty 

CD - “disconnected” position max. 3 for NW, for NT 

qty 

Number of poles 3 or 4 CT - “test” position max. 3 for NW, for NT qty 

Option: neutral on right side AC - NW actuator for 6 CE - 3 CD - 0 CT additionnal carriage switches qty 

Device Fixed Remote operation 

Withdr. chassis Remote ON/OFF MCH - gear motor V 

Withdr. without chassis 


XF - closing voltage release V 

MX - opening voltage release V 

Chassis alone without connections PF - “ready to close” contact Low level 

Micrologic control unit 6 A- 40 V AC 

A - ammeter BPFE - electrical closing pushbutton 

2.0 5.0 6.0 7.0 Res - electrical reset option V 

P - power meter 5.0 6.0 7.0 RAR - automatic reset option 

H - harmonic meter 5.0 6.0 7.0 Remote tripping MN - undervoltage release V 

AD - external power-supply module V R - delay unit (non-adjustable) 

TCE - external sensor (CT) for neutral protection Rr - adjustable delay unit 

Rectangular sensor 

for earth-leakage protection 

NT ( 80 x 5 mm) 2 nd MX - shunt release V 

NW (470 x 60 mm) Locking 

LR - long-time rating plug Standard 0.4 to Ir VBP - ON/OFF pushbutton locking (by transparent cover + padlocks) 

Low setting 0.4 to 0.8 Ir OFF position locking: 

High setting 0.8 to Ir VCPO - by padlocks 

LT OFF VSPO - by keylocks Keylock kit (w/o keylock) Profalux Ronis 

PTE - external voltage measurement input (required for 

reverse supply) 

Kirk Castell 

keylock Profalux Ronis 

BAT - battery module identical keylocks, key Profalux Ronis 

Communication keylocks, different keys (NW) Profalux Ronis 

Eco COM module Modbus Chassis locking in “disconnected” position: 

(for switchboard display units) VSPD - by keylocks Keylock kit (w/o keylock) Profalux Ronis 

Connections Kirk Castell 

Horizontal Top Bottom keylock Profalux Ronis 

Vertical Top Bottom identical keylocks, key Profalux Ronis 

Front Top Bottom keylocks, different keys Profalux Ronis 

Vertical-connection adapters NT - FC fixed, draw. Optional connected/disconnected/test position locking 

Cable-lug adapters NT - FC fixed, draw. VPEC - door interlock On right-hand side of chassis 

Arc chute screen NT - FC fixed On left-hand side of chassis 

Interphase barriers NT, NW fixed, draw. VPOC - racking interlock 

Spreaders NT fixed, drawout IPA - cable-type door interlock 

Disconnectable front 

connection adapter 

NW fixed IBPO - racking interlock between crank and OFF pushbutton for NW 

DAE - automatic spring discharge before breaker removal for NW 

Lugs for 40 v or 300 v cables NT fixed, draw. VDC - mismatch protection 

VO - safety shutters on 

chassis 

VIVC - shutter position 

indication and locking 

Masterpact NT or NW / Circuit breakers 


NT, NW X Accessories 

CDM - mechanical operation counter 

NW CB - auxiliary terminal shield for chassis 




Brackets for mounting NW fixed on backplates 


D- 7



D- 8 


for 3 devices 

Masterpact NW / Circuit breakers 




Diagram for 3 Masterpact NW devices 

2 “Normal” sources + 1 “Replacement” source: 

Electrical interlocking without lockout after fault (no. 5 56906) 

Electrical interlocking with lockout after fault (no. 5 56907) 

2 “Normal” sources + 1 “Replacement” source with source selection: 

Automatic control w/ engine generator set w/o lockout after fault (no. 5 56908) 

Automatic control w/ engine generator set w/ lockout after fault (no. 5 56909) 

3 sources, only 1 device ON: 

Electrical interlocking without lockout after fault (no. 5 569 0) 

Electrical interlocking with lockout after fault (no. 5 569 ) 

2 “Normal” sources + 1 coupling: 

Electrical interlocking without lockout after fault (no. 5 569 ) 

Electrical interlocking with lockout after fault (no. 5 569 3) 

Automatic control with lockout after fault: (no. 5 569 4) 

Interlocking using cables (NW devices one above the other or side-by-side) 

Select a complete set including three adaptation fixtures and the cables 

complete set for: 3 sources / device ON, fixed or drawout 

sources + coupling, fixed or drawout 

sources + replacement source, fixed or drawout



rectangles . 



OF - ON/OFF indication contacts 

Standard 4 OF 6 A-240 V AC (10 A-240 V AC and low-level) 

Additional 1 block of 4 OF max. 2 qty 

Device identification: EF - combined “connected/closed” contacts 

Q 1 - NORMAL SOURCE 1 EF 6 A-240 V AC max. 8 qty 

Q 2 - REPLACEMENT SOURCE 1 EF low-level max. 8 qty 

Circuit breaker or switch-disconnector SDE - “fault-trip” indication contact 

Masterpact type NW Standard 1 SDE 6 A-240 V AC 

Rating A Additional 1 SDE 6 A-240 V AC 1 SDE Low level 

Sensor rating A Programmable contacts 2 M2C contacts 6 M6C contacts 

Circuit breaker N1, H1, H2, H3, L1 Carriage switches 6 A-240 V AC Low level 

Switch-disconnector NA, HA, HF CE - “connected” position max. 3 qty 

Number of poles 3 or 4 CD - “disconnected” position max. 3 qty 

Option: neutral on right side CT - “test” position max. 3 qty 

Device Fixed AC - NW actuator for 6 CE - 3 CD - 0 CT additionnal carriage switches qty 

Drawout with chassis Remote operation 

Drawout without chassis Remote ON/OFF MCH - gear motor V 


XF - closing voltage release 

V 

Chassis alone without connections MX - opening voltage release V 

Micrologic control unit PF - “ready to close” contact Low level 

A - ammeter 6 A-240 V AC 

2.0 5.0 6.0 7.0 BPFE - electrical closing pushbutton 

P - power meter 5.0 6.0 7.0 Res - electrical reset option V 

H - harmonic meter 5.0 6.0 7.0 RAR - automatic reset option 

AD - external power-supply module V Remote tripping MN - undervoltage release V 

TCE - external sensor (CT) for neutral protection R - delay unit (non-adjustable) 

Rectangular sensor 

for earth-leakage protection 

470 x 160 mm Rr - adjustable delay unit 

2 eme MX - shunt release 

TCW - external sensor for SGR protection Locking 

LR - long-time rating plug Standard 0.4 to 1 Ir VBP - ON/OFF pushbutton locking (by transparent cover + padlocks) 

Low setting 0.4 to 0.8 Ir OFF position locking: 

High setting 0.8 to 1 Ir VCPO - by padlocks 

LT OFF VSPO - by keylocks Keylock kit (w/o keylock) Profalux Ronis 

PTE - external voltage measurement input (required for 

reverse supply) 

Masterpact NW / Circuit breakers 


Kirk Castell 

1 keylock Profalux Ronis 

BAT - battery module 2 identical keylocks, 1 key Profalux Ronis 

Communication 2 keylocks, different keys (NW) Profalux Ronis 

Eco COM module Modbus Chassis locking in “disconnected” position: 

(for switchboard display units) VSPD - by keylocks Keylock kit (w/o keylock) Profalux Ronis 

Connections Kirk Castell 

Horizontal Top Bottom 1 keylock Profalux Ronis 

Vertical Top Bottom 2 identical keylocks, 1 key Profalux Ronis 

Front Top Bottom 2 keylocks, different keys Profalux Ronis 

Interphase barriers Fixed, drawout Optional connected/disconnected/test position locking 

Disconnectable front Fixed VPEC - door interlock On right-hand side of chassis 

connection adapter 

On left-hand side of chassis 

VO - safety shutters on chassis X VPOC - racking interlock 

VIVC - shutter position indication and locking IPA - cable-type door interlock 

IBPO - racking interlock between crank and OFF pushbutton for NW 

DAE - automatic spring discharge before breaker removal for NW 

VDC - mismatch protection 

Accessories 

CDM - mechanical operation counter 

CB - auxiliary terminal shield for chassis 




Brackets for mounting NW fixed on backplates 


V

Schneider Electric Industries SAS 

35, rue Joseph Monier 

CS 30323 

92506 Rueil Malmaison Cedex 

France 

RCS Nanterre 954 503 439 

Capital social 896 313 776 € 

www.schneider-electric.com 

LVPED211022EN 

As standards, specifications and designs change from time to time, please ask for confirmation 

of the information given in this publication. 

This document has been printed on ecological paper 

Design: Schneider Electric 

Photos: Schneider Electric 

Edition: Altavia Connexion - made in France 

10-31-1247 

11-2011 

ART960666 © 2011 - Schneider Electric - All rights reserved.

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