Pact Series - productinfo.schneider-electric.com

Pact Series

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A

User GuidePact Series offers world-class breakers and switches

DOCA0066EN-0401/2021

www.se.com

Legal InformationThe Schneider Electric brand and any trademarks of Schneider Electric SE and itssubsidiaries referred to in this guide are the property of Schneider Electric SE or itssubsidiaries. All other brands may be trademarks of their respective owners.

This guide and its content are protected under applicable copyright laws andfurnished for informational use only. No part of this guide may be reproduced ortransmitted in any form or by any means (electronic, mechanical, photocopying,recording, or otherwise), for any purpose, without the prior written permission ofSchneider Electric.

Schneider Electric does not grant any right or license for commercial use of the guideor its content, except for a non-exclusive and personal license to consult it on an "asis" basis. Schneider Electric products and equipment should be installed, operated,serviced, and maintained only by qualified personnel.

As standards, specifications, and designs change from time to time, informationcontained in this guide may be subject to change without notice.

To the extent permitted by applicable law, no responsibility or liability is assumed bySchneider Electric and its subsidiaries for any errors or omissions in the informationalcontent of this material or consequences arising out of or resulting from the use of theinformation contained herein.


Table of Contents

Safety Information.......................................................................................5

About the Book............................................................................................7

ComPact NSX DC Circuit Breakers .........................................................8ComPact NSX DC Circuit Breakers Presentation ..........................................9

Pact Series Master Range ...................................................................10ComPact NSX DC Range.................................................................... 11Operating the Circuit Breakers .............................................................16EcoStruxure Power Commission Software............................................18De-Energizing the Circuit Breaker ........................................................19Environmental Conditions....................................................................22

Circuit Breaker With Toggle Handle............................................................25Front Face Description ........................................................................26Opening, Closing, and Resetting the Circuit Breaker..............................27Testing the Circuit Breaker...................................................................29Locking the Circuit Breaker..................................................................31

Circuit Breaker With Rotary Handle............................................................33Front Face Description ........................................................................34Opening, Closing, and Resetting the Circuit Breaker..............................36Testing a Circuit Breaker With Direct Rotary Handle ..............................38Locking a Circuit Breaker With Direct Rotary Handle..............................40Testing a Circuit Breaker With Extended Rotary Handle .........................43Locking a Circuit Breaker With Extended Rotary Handle ........................45

Motor-Operated Circuit Breakers ...............................................................47Front Face Description ........................................................................48Opening, Closing, and Resetting a Circuit Breaker With MotorMechanism.........................................................................................50Opening, Closing, and Resetting Circuit Breakers WithCommunicating Motor Mechanism .......................................................53Locking the Circuit Breaker..................................................................54

ComPact NSX DC Installation Accessories..........................................56Installation Accessories Summary .............................................................57Plug-in Circuit Breaker ..............................................................................58Withdrawable Circuit Breaker ....................................................................62Accessories .............................................................................................69

ComPact NSX DC Electric Auxiliary Devices .......................................71Electric Auxiliary Devices Summary ...........................................................72Indication Contacts ...................................................................................77Wireless Indication Auxiliary ......................................................................79BSCM Breaker Status Control Module........................................................83NSX Cord ................................................................................................87Control Auxiliaries.....................................................................................89

ComPact NSX DC Trip Units...................................................................91Trip Unit Summary....................................................................................92TM-D Thermal-Magnetic Trip Unit for 1P and 2P Circuit Breakers.................94TM-D Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers up to63 A.........................................................................................................95

DOCA0066EN-04 3


TM-DC Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers from80 A to 250 A ...........................................................................................97TM-DC Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers from250 A to 600 A..........................................................................................99TM-DC Thermal-Magnetic Trip Unit for 2P Circuit Breakers from 630 A to1200 A................................................................................................... 101TM-G Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers up to250 A..................................................................................................... 103TM-DC PV Thermal-Magnetic Trip Unit for 4P Circuit Breakers .................. 105Protection Against Ground Faults for Photovoltaic Applications .................. 108

ComPact NSX DC Circuit Breakers Operation................................... 109Commissioning ...................................................................................... 110Maintaining the Circuit Breaker During Operation...................................... 114Responding to a Trip............................................................................... 117Troubleshooting ..................................................................................... 119

Appendices .............................................................................................. 120Wiring Diagrams..................................................................................... 121

Fixed Circuit Breakers ....................................................................... 122Plug-in or Withdrawable Circuit Breakers ............................................ 125Motor Mechanism ............................................................................. 128

Index ......................................................................................................... 131

4 DOCA0066EN-04


Safety InformationImportant Information

Read these instructions carefully, and look at the equipment to become familiarwith the device before trying to install, operate, service, or maintain it. Thefollowing special messages may appear throughout this documentation or on theequipment to warn of potential hazards or to call attention to information thatclarifies or simplifies a procedure.

Please Note

Electrical equipment should be installed, operated, serviced, and maintained onlyby qualified personnel. No responsibility is assumed by Schneider Electric for anyconsequences arising out of the use of this material.

A qualified person is one who has skills and knowledge related to the constructionand operation of electrical equipment and its installation, and has received safetytraining to recognize and avoid the hazards involved.

The addition of this symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

! DANGER

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

WARNING!

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION!

NOTICE is used to address practices not related to physical injury.

NOTICE

DOCA0066EN-04 5


CYBERSECURITY SAFETY NOTICE

WARNINGPOTENTIAL COMPROMISE OF SYSTEM AVAILABILITY, INTEGRITY, ANDCONFIDENTIALITY• Change default passwords at first use to help prevent unauthorized access to

device settings, controls, and information.• Disable unused ports/services and default accounts to help minimize

pathways for malicious attackers.• Place networked devices behind multiple layers of cyber defenses (such as

firewalls, network segmentation, and network intrusion detection andprotection).

• Use cybersecurity best practices (for example, least privilege, separation ofduties) to help prevent unauthorized exposure, loss, modification of data andlogs, or interruption of services.

Failure to follow these instructions can result in death, serious injury, orequipment damage.

6 DOCA0066EN-04


About the BookDocument Scope

The aim of this guide is to provide users, installers, and maintenance personnelwith the technical information needed to operate ComPact NSX direct current (DC)circuit breakers and switch-disconnectors in compliance with the IEC/ENstandards.

Validity Note

This document applies to the range of ComPact NSX DC circuit breakers andswitch-disconnectors.

Online Information

The information contained in this guide is likely to be updated at any time.Schneider Electric strongly recommends that you have the most recent and up-to-date version available on www.se.com/ww/en/download.

The technical characteristics of the devices described in this guide also appearonline. To access the information online, go to the Schneider Electric home page atwww.se.com.

Related Documents

Title of Documentation Reference Number

ComPact NSX - Modbus Communication Guide DOCA0091EN

ULP System (IEC Standard) - User Guide DOCA0093EN

ComPact NSX, ComPact INS/INV, MasterPact NW DC - DC PVCatalog

LVPED208006EN

ComPact NSX100-160 AC/DC 1P Circuit Breaker - InstructionSheet

S1A95948

ComPact NSX100-160 AC/DC 2P Circuit Breaker - InstructionSheet

S1A95949

ComPact NSX100-250 DC 3P/4P Circuit Breaker and Switch-Disconnector - Instruction Sheet

S1A49913

ComPact NSX80-200 DC PV 4P Circuit Breaker - Instruction Sheet S1B57746

ComPact NSX100-200 NA DC PV 4P Switch-Disconnector -Instruction Sheet

S1B76368

ComPact NSX400-630 DC 3P/4P Circuit Breaker and Switch-Disconnector - Instruction Sheet

S1A79986

ComPact NSX250-500 DC PV 4P Circuit Breaker - InstructionSheet

HRB66218

ComPact NSX400-500 NA DC PV 4P Switch-Disconnector -Instruction Sheet

S1B57747

ComPact NSX630-1200 DC 2P Circuit Breaker - Instruction Sheet EAV59359

You can download these technical publications and other technical informationfrom our website at www.se.com/ww/en/download/.

DOCA0066EN-04 7

https://www.se.com/ww/en/download

https://www.se.com

https://www.se.com/ww/en/download/document/DOCA0091EN


https://download.schneider-electric.com/files?p_enDocType=Catalog&p_File_Name=LVPED208006EN.pdf&p_Doc_Ref=LVPED208006EN

https://download.schneider-electric.com/files?p_Doc_Ref=S1A95948



https://download.schneider-electric.com/files?p_Doc_Ref=S1B57746



https://download.schneider-electric.com/files?p_Doc_Ref=HRB66218


https://download.schneider-electric.com/files?p_Doc_Ref=EAV59359

https://www.se.com/ww/en/download/


ComPact NSX DC Circuit BreakersWhat’s in This Part

ComPact NSX DC Circuit Breakers Presentation ................................................9Circuit Breaker With Toggle Handle .................................................................25Circuit Breaker With Rotary Handle .................................................................33Motor-Operated Circuit Breakers .....................................................................47

8 DOCA0066EN-04

ComPact NSX DC Circuit Breakers PresentationComPact NSX DC Circuit Breakers 100-1200 A and

Switch-Disconnectors 100-630 A

ComPact NSX DC Circuit Breakers PresentationWhat’s in This Chapter

Pact Series Master Range .............................................................................10ComPact NSX DC Range .............................................................................. 11Operating the Circuit Breakers .......................................................................16EcoStruxure Power Commission Software ......................................................18De-Energizing the Circuit Breaker...................................................................19Environmental Conditions ..............................................................................22

DOCA0066EN-04 9

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A ComPact NSX DC Circuit Breakers Presentation

Pact Series Master RangeFuture-proof your installation with Schneider Electric’s low-voltage and medium-voltage Pact Series. Built on legendary Schneider Electric innovation, the PactSeries comprises world-class circuit breakers, switches, residual current devicesand fuses, for all standard and specific applications. Experience robustperformance with Pact Series within the EcoStruxure-ready switchgear, from16 to 6300 A in low-voltage and up to 40.5 kV in medium-voltage.

10 DOCA0066EN-04



ComPact NSX DC Range

Description

The ComPact NSX DC range covers the following applications:• Electrical distribution protection• Photovoltaic (PV) applications• Marine applications

The ComPact NSX DC range is compliant with the following standards:• IEC 60947-2 for circuit breakers• IEC 60947-3 for switch-disconnectors

The ComPact NSX direct current (DC) range consists of:• Circuit breakers operating on direct current from 16 to 600 A up to 750 Vdc• Circuit breakers operating on direct current from 630 to 1200 A up to 600 Vdc• Switch-disconnectors operating on direct current from 16 to 630 A up to

750 Vdc• Switch-disconnectors operating on direct current from 100 to 630 A up to

I500 Vdc• A set of standard accessories and auxiliaries shared with the ComPact NSX

AC range• A set of specific accessories to meet the needs of series or parallel

connection of poles required in high-voltage DC systems• Circuit breakers for general-purpose (GP) applications including DC

distribution for critical services (for example: Telecom, auxiliaries, and safetyservices):◦ 1 and 2 poles from 16 to 160 A up to 750 Vdc◦ 3 and 4 poles from 16 to 600 A up to 750 Vdc◦ 2 poles from 630 to 1200 A, obtained from a ComPact NSX 4P 630 A with

2 poles in parallel, up to 600 Vdc• Circuit breakers for photovoltaic (PV) applications:◦ 4 poles from 16 to 500 A

Convention

In this guide, the term circuit breaker covers circuit breakers and switch-disconnectors.

DOCA0066EN-04 11


Fixed Circuit Breaker

A

B

C

O

P

K

Q

D

42

1

4

2

1

7

C

E F

MX/SHT

IEC: 220-240V 50/60Hz

UL: 208-277V 60Hz

C1

C2

EXxxxxx

97XX

C. Xxx

G H

J

I

L

N

M

250175

225 200

A

Ir

Ii

TM250 D

250 A/40°C IrIi

2000

2500

22501500

1250

1750

A

MX/SHT

IEC: 220-240V 50/60Hz

UL: 208-277V 60Hz

C1

C2

EXxxxxx

97XX

C. Xxx

MXSHUNT

TRIP

PP-YYYY-Www-D

220-240V50/60Hz

208-277V60Hz 10VA

UL:

IEC:

C1

C2

A Sealable terminal shields

B Interphase barriers

C TM-D, TM-G trip unit

D BSCM module

E Indication contact

F Wireless indication auxiliary

G Voltage release

H Motor mechanism

I Extended rotary handle

J Direct rotary handle

K Terminal extensions

L Rear connectors

M Cable connectors

N One-piece spreader

O Parallel and series connectors

P Toggle handle

12 DOCA0066EN-04



Withdrawable or Plug-in Circuit Breaker

A

B

P

Q

F G

O N

KJ

LM

C

D

EH

I

DOCA0066EN-04 13


A Sealable long terminal shields for plug-in base

B Interphase barriers

C Parallel and series connectors

D Automatic withdrawable auxiliary connector

E Manual auxiliary connector

F Chassis side plate for withdrawable circuitbreaker

G Circuit-breaker side plate

H Adapter

I Power connections

J Circuit-breaker plug-in base

K Lugs

L Rear connectors

M Terminal extensions

N Cable connectors

O Rear connectors

P Adapter

Identification

The faceplate on the front of the circuit breaker identifies the circuit breaker and itscharacteristics.

A Device size and rated current

B Ui: rated insulation voltage

C Uimp: rated impulse withstand voltage

D Ics: service breaking capacity rated service short-circuit breaking capacity

E Icu: rated ultimate short-circuit breaking capacity

F Ue: operating voltagerated operational voltage

G Circuit breaker disconnector symbol

H Standards

I Performance according to the NEMA standardNOTE: For extended rotary handles, open the door to view the faceplate label.

Trip Units

The ComPact NSX DC circuit breakers use thermal-magnetic trip units.

For more information about trip units, see the related description, page 92.

14 DOCA0066EN-04



Trip Unit Settings

The circuit breaker trip unit settings must satisfy the requirements of theperformance and installation diagram.

The dial positions on the front of the thermal-magnetic trip unit set the circuitbreaker pickup settings.

A Overload protection setting

B Short-circuit protection setting

DOCA0066EN-04 15


Operating the Circuit Breakers

Circuit Breaker Operating Control Accessories for General-Purpose Applications

The following table shows the operating control accessories compatible with theComPact NSX DC circuit breakers for general-purpose applications. For moreinformation, refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

Operating ControlAccessory

NSX100 DC NSX160 DC NSX250 DC NSX400 DC NSX630 DC NSX1200DC

1P 2P 3P/4P 1P 2P 3P/4P 3P/4P 3P/4P 3P/4P 2P

Toggle handle ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

Rotary handle – – ✔ – – ✔ ✔ ✔ ✔ ✔

Motor mechanism – – ✔ – – ✔ ✔ ✔ ✔ ✔

Communicating motormechanism

– – ✔ – – ✔ ✔ ✔ ✔ ✔

Circuit Breaker Operating Control Accessories for Photovoltaic Applications

The following table shows the operating control accessories compatible with theComPact NSX DC circuit breakers for photovoltaic applications. For moreinformation, refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

Operating ControlAccessory

NSX80DC PV

NSX100DC PV

NSX125DC PV

NSX160DC PV

NSX200DC PV

NSX400DC PV

NSX500DC PV

4P 4P 4P 4P 4P 4P 4P

Toggle handle ✔ ✔ ✔ ✔ ✔ ✔ ✔

Rotary handle ✔ ✔ ✔ ✔ ✔ ✔ ✔

Motor mechanism ✔ ✔ ✔ ✔ ✔ ✔ ✔

Communicating motormechanism

✔ ✔ ✔ ✔ ✔ ✔ ✔

Handle Position

The handle position indicates the state of the circuit breaker:

Toggle handle Rotary handle Motor mechanism

• I (ON): Circuit breaker closed.Closed manually.

• O (OFF): Circuit breaker open.Opened manually.

• Trip: Circuit breaker tripped.Tripped by the protection (trip unit or trip auxiliaries), thepush-to-trip button, or the USB maintenance interface.

• I (ON): Circuit breaker closed(in Auto or Manu mode).

• O (OFF): Circuit breakeropen or tripped (in Auto orManu mode).

16 DOCA0066EN-04





Remote Indication

Information is available remotely:• From the indication contacts• From the wireless indication auxiliaries• By using a communication network

These indication auxiliaries can be installed on site.

For more information about the remote indication and communication options,refer to the summary tables of auxiliaries, page 72.

Remote Electrical Stop Command

The remote electrical stop command can be given by electrical control auxiliariesregardless of the control type in use.

To obtain a remote electrical stop command, use:• an MX shunt trip release, or• an MN undervoltage trip release, or• an MN undervoltage trip release with time-delay unit (the time-delay unit

overcomes the problem of micro-cuts).For more information about the electrical control auxiliaries, refer to the relevanttopic, page 89.

NOTE: It is advisable to test operation of the remote electrical stop commandsat regular intervals (every six months).

DOCA0066EN-04 17


EcoStruxure Power Commission Software

Overview

EcoStruxure Power Commission software automatically discovers the smartdevices and allows you to add the devices for an easy configuration. You cangenerate comprehensive reports as part of Factory Acceptance Test and SiteAcceptance Test to replace your heavy manual work. Additionally, when thepanels are under operation, any change of settings made can be easily identifiedby a yellow highlighter. This indicates the difference between the project anddevice values, and hence provides a system consistency during the operation andmaintenance phase.

EcoStruxure Power Commission software enables the configuration of ComPactNSX circuit breakers with the following modules, and accessories:

• MicroLogic trip units• Communication interface modules: BSCM module, IFM interface, IFE

interface, IFE server• ULP modules: IO module, FDM121 display

EcoStruxure Power Commission software enables the configuration of thefollowing gateways and wireless devices:

• EcoStruxure Panel Server• PowerTag Link gateway• PowerTag Energy module• Wireless indication auxiliary

EcoStruxure Power Commission software is available at www.se.com

Key Features

EcoStruxure Power Commission software performs the following actions for thesupported devices and modules:

• Create projects by device discovery• Save the project in the EcoStruxure Power Commission cloud for reference• Upload settings to the device and download settings from the device• Compare the settings between the project and the device• Perform control actions in a secured way• Generate and print the device settings report• Perform a communication wiring test on the entire project and generate and

print test report• View the communication architecture between the devices in a graphical

representation• View the measurements, logs, and maintenance information• View the status of device and IO module• View the alarm details• Check the system firmware compatibility status• Update to the latest device firmware• Perform force trip and automatic trip curve test

18 DOCA0066EN-04

https://www.se.com



De-Energizing the Circuit Breaker

Isolation Capacity

ComPact NSX circuit breakers offer positive contact indication and are suitable forisolation in accordance with standards IEC/EN 60947-1 and 2. The O (OFF)position of the actuator is sufficient to isolate the circuit breaker concerned.

The following marking on the faceplate label indicates that the circuit breaker iscapable of isolation:

To confirm this capability, standards IEC/EN 60947-1 and 2 require specific shockwithstand tests.

ComPact NSX circuit breakers can be locked in the O (OFF) position to allow workto be carried out with the power off in accordance with installation rules. The circuitbreaker can only be locked in the open position if the circuit breaker is in the O(OFF) position.

NOTE: Locking a ComPact NSX circuit breaker in the open position issufficient to isolate the circuit breaker.

The locks depend on the type of actuator:• For circuit breakers with toggle handles, refer to the locking accessories,

page 31.• For circuit breakers with rotary handles, refer to how to lock the circuit breaker

with direct rotary handle, page 40 and how to lock the circuit breaker withextended rotary handle, page 45.

• For circuit breakers with motor mechanisms, refer to how to lock the circuitbreaker, page 54.

Maintenance and Servicing Work on Installation

DANGERHAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH• Apply appropriate personal protective equipment (PPE) and follow safe

electrical work practices. See NFPA 70E or CSA Z462 or local equivalent.• This equipment must only be installed and serviced by qualified electrical

personnel.• Turn off all power supplying this equipment before working on or inside

equipment.• Always use a properly rated voltage sensing device to confirm that power is

off.• Replace all devices, doors, and covers before turning on power to this

equipment.• Repair the installation immediately if an insulation fault occurs during

operation.Failure to follow these instructions will result in death or serious injury.

Turn off all power supplying the equipment before working on or inside equipment.For a partial powering down of the installation, the installation and safety rulesrequire clearly labeling and isolating the feed being worked on.

DOCA0066EN-04 19


Maintenance Work Following Fault Trip

WARNINGHAZARD OF CLOSING ON ELECTRICAL FAULT

Do not close the circuit breaker again without first inspecting and, if necessary,repairing the downstream electrical equipment.


The fact that a protection has tripped does not remedy the cause of the faultdetected on the downstream electrical equipment.

The following table describes the procedure to be followed after a fault trip:

Step Action

1 Isolate the feed before inspecting the downstream electrical equipment.

2 Look for the cause of the detected fault.

3 Inspect and, if necessary, repair the downstream equipment.

4 Inspect the equipment in the event of a short-circuit trip.

5 Close the circuit breaker again.

For more information about restarting following a fault, refer to Responding to atrip.

Checking the Settings

Checking settings does not require any particular precautions. The checks mustbe carried out by a qualified person.

Testing the Circuit Breaker

CAUTIONHAZARD OF NUISANCE TRIPPING

Protection tests must be done by qualified electrical personnel.

Failure to follow these instructions can result in injury or equipmentdamage.

When testing circuit breaker trip mechanisms, precautions must be taken:• To avoid disrupting operations.• To avoid inappropriate actions or tripping of alarms.

For example, tripping the circuit breaker with the push-to-trip button or the LTUtest software can lead to inappropriate fault indications or corrective actions (suchas switching to a replacement power source).

20 DOCA0066EN-04



Setting the Trip Unit

WARNINGHAZARD OF NUISANCE TRIPPING OR FAILURE TO TRIP

Protection setting adjustments must be done by qualified electrical personnel.


Modifying trip unit settings requires a thorough knowledge of the installation andsafety rules.

DOCA0066EN-04 21


Environmental Conditions

Ambient Temperature

The ambient temperature refers to the temperature of the air immediatelysurrounding the circuit breaker.

• Operation temperature: -25 °C to +70 °C (-13 °F to +158 °F)NOTE: Commissioning is possible at -35 °C (-31 °F)

• Storage temperature: -50 °C to +85 °C (-58 °F to +185 °F)

Extreme Atmospheric Conditions

ComPact NSX DC circuit breakers are designed to operate in industrialatmospheres as defined in standard IEC 60947-2 for the highest level of pollution(level 3).

They are tested for extreme storage conditions according to the followingstandards:

Standard Title

IEC 60068-2-2 Dry heat, severity level +85 °C (+185 °F)

IEC 60068-2-1 Dry cold, severity level –55 °C (–67 °F)

IEC 60068-2-30 Damp heat, cyclic• temperature +55 °C (+131 °F)• relative humidity 95%

IEC 60068-2-52 Salt-mist test

To obtain the best use from the circuit breakers, install them in properly ventilatedswitchboards where excessive dust is not a problem.

Vibration

ComPact NSX DC circuit breakers are tested against vibration.

Conformity tests are carried out in accordance with standard IEC 60068-2-6 at thelevels of severity required by the merchant shipping regulatory bodies (IACS,Veritas, Lloyd namely):

• 2 Hz to 13.2 Hz with an amplitude of +/- 1 mm (+/- 0.04 in)• 13.2 Hz to 100 Hz at a constant acceleration of 0.7 g

22 DOCA0066EN-04



Electromagnetic Disturbances

ComPact NSX DC circuit breakers are immune to electromagnetic disturbance.

They comply with the requirements of the electromagnetic compatibility (EMC)standard IEC 60947-2 Appendixes F and J - Overcurrent protection tests.

Check for compliance with EMC standards by testing for immunity to:• Overvoltages produced by the operation of electromagnetic circuit breaker• Overvoltages produced by atmospheric disturbance that pass through the

electrical network (for example, lightning)• The use of apparatus emitting radio waves (such as radio transmitters,

walkie-talkies, or radar)• Electrostatic discharges produced by the operators themselves

Conformity with EMC standards as described above helps to ensure that:• The circuit breaker operates correctly in a disturbed environment◦ without nuisance tripping◦ in accordance with the trip time.

• There is no disturbance to any type of industrial or commercial environment.

Altitude

ComPact NSX DC circuit breakers are designed to operate within specification ataltitudes of up to 2,000 m (6,600 ft).

Operation above 2,000 m (6,600 ft) modifies the characteristics of the surroundingair (dielectric strength, cooling capacity) and requires derating.

Altitude derating table for ComPact NSX DC circuit breakers:

Altitude (m/ft) < 2,000 m

(6,600 ft)

3,000 m

(9,800 ft)

4,000 m

(13,000 ft)

5,000 m

(16,500 ft)

Impulse withstand voltage Uimp (kV) 8 7.1 6.4 5.6

Rated insulation voltage Ui (V) 750 710 635 560

Maximum rated operational DC voltage (V) ComPact NSX DC ≤ 250 V 250 220 200 175

ComPact NSX DC 250–500 V 500 440 400 350

ComPact NSX DC 500–750 V 750 660 600 525

Rated current (A) In 0.96 x In 0.93 x In 0.90 x In

DOCA0066EN-04 23


Altitude derating table for ComPact NSX DC PV circuit breakers:

Altitude (m/ft) < 2,000 m

(6,600 ft)

3,000 m

(9,800 ft)

4,000 m

(13,000 ft)

5,000 m

(16,500 ft)

Impulse withstand voltage Uimp (kV) 8 7.1 6.4 5.6

Rated insulation voltage Ui (V) 1,000 900 800 700

Maximum rated operational DC voltage (V) 1,000 900 800 700

Rated current (A) In 0.96 x In 0.93 x In 0.90 x In

24 DOCA0066EN-04

Circuit Breaker With Toggle HandleComPact NSX DC Circuit Breakers 100-1200 A and


Circuit Breaker With Toggle HandleWhat’s in This Chapter

Front Face Description ..................................................................................26Opening, Closing, and Resetting the Circuit Breaker ........................................27Testing the Circuit Breaker .............................................................................29Locking the Circuit Breaker ............................................................................31

DOCA0066EN-04 25

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Circuit Breaker With Toggle Handle

Front Face Description

Front Face

Ui 800 V Uimp 8 kV

(V)Ue Icu

100

cat A

(kA) Ics

100

NSX250S DCCompact

c100 100c

750 (3P) 100 100c

250 (1P)500 (2P)

IEC / EN 60947-2

trip 100/250A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

A

B

C

D

E

F

A Faceplate

B Toggle handle for opening, closing, and resetting

C Push-to-trip button

D Circuit breaker rating

E Trip unit (circuit breaker only)

F Trip unit adjustment dials (circuit breaker only)

For more information about installation, refer to the instruction sheets, page 7.

26 DOCA0066EN-04



Opening, Closing, and Resetting the Circuit Breaker

Opening and Closing Locally

• To close the circuit breaker, move the toggle handle from the O (OFF) positionto the I (ON) position.

• To open the circuit breaker, move the toggle handle from the I (ON) position tothe O (OFF) position.

Resetting After a Trip on Electrical Fault

The circuit breaker has tripped on electrical fault, the toggle handle has movedfrom the I (ON) position to the Trip position.




The fact that a circuit breaker has tripped does not remedy the cause of the faultdetected on the downstream electrical equipment.

To reset after a fault trip:

Step Action Position

1 – Isolate the feed (refer tomaintenance and servicing workon installation, page 19) beforeinspecting the downstreamelectrical equipment.

2 – Look for the cause of the detectedfault.

3 – Inspect and, if necessary, repairthe downstream equipment.

4 – Inspect the equipment in the eventof a short-circuit trip.

DOCA0066EN-04 27



5 Reset the circuit breaker bymoving the toggle handle to O(OFF).

O (OFF)

6 Close the circuit breaker by movingthe toggle handle to I (ON).

I (ON)

28 DOCA0066EN-04



Testing the Circuit Breaker

Push-to-Trip Procedure


Device tests must only be done by qualified electrical personnel.


When testing the trip mechanism take precautions against:• Disrupting operations• Activating inappropriate alarms• Triggering unwanted actions

For example, tripping the circuit breaker with the push-to-trip button can lead toinappropriate fault indications or corrective actions (such as switching to analternate power source).

Follow these steps to test the trip mechanism:


1 Close the circuit breaker. I (ON)

2 Press the push-to-tripbutton to trip the circuitbreaker.

DOCA0066EN-04 29



3 Reset the circuit breakerby moving the togglehandle to O (OFF).

O (OFF)

4 Close the circuit breakerby moving the togglehandle to I (ON).

I (ON)

30 DOCA0066EN-04



Locking the Circuit Breaker

Locking Accessories

DANGERHAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

When the circuit breaker toggle handle is locked in the (O) OFF position, alwaysuse a properly rated voltage sensing device to confirm that power is off beforeworking on equipment.

Failure to follow these instructions will result in death or serious injury.

Use locking accessories to lock the toggle handle in the I (ON) or O (OFF)position.

Accessory Padlocks

Accessory that is part of thecase

Use up to 3 padlocks (not supplied) 5–8 mm (0.2–0.3 in) in diameter

Accessory that is detachable Use up to 3 padlocks (not supplied) 5–8 mm (0.2–0.3 in) in diameter

NOTE: Locking the toggle handle in the I (ON) position does not disable thecircuit breaker protection functions. If there is an electrical fault, the circuitbreaker trips without altering its performance. When unlocked, the togglehandle moves to the Trip position. To return the circuit breaker to service, referto how to open, close, and reset the circuit breaker, page 27.

DOCA0066EN-04 31


Sealing Accessories

Use sealing accessories to prevent circuit breaker operations.

Seal Prohibited operations

Escutcheon mounting screw • Dismantling theescutcheon

• Accessing the auxiliaries• Dismantling the trip unit

Transparent protective cover • Altering trip unit settings• Accessing the test port

for the trip units

Mounting screw for terminalshields

Accessing the powerconnection (protection againstdirect contact)

32 DOCA0066EN-04

Circuit Breaker With Rotary HandleComPact NSX DC Circuit Breakers 100-1200 A and


Circuit Breaker With Rotary HandleWhat’s in This Chapter

Front Face Description ..................................................................................34Opening, Closing, and Resetting the Circuit Breaker ........................................36Testing a Circuit Breaker With Direct Rotary Handle .........................................38Locking a Circuit Breaker With Direct Rotary Handle ........................................40Testing a Circuit Breaker With Extended Rotary Handle....................................43Locking a Circuit Breaker With Extended Rotary Handle...................................45

DOCA0066EN-04 33

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Circuit Breaker With Rotary Handle


Front Face with Direct Rotary Handle

The circuit breaker operating controls, operation indicators, settings, and lockingmechanisms for the direct rotary handle are on the front of the circuit breaker.

trip 100/250A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

OnI

0Off

Tri

p

trip

Reset

Ø5...8

Ui 800 V Uimp 8 kV

(V)Ue Icu

100

cat A

(kA) Ics

100

NSX250S DCCompact

c100 100c

750 (3P) 100 100c

250 (1P)500 (2P)

IEC / EN 60947-2

B

C

D

E

A

A Faceplate

B Direct rotary handle for opening, closing, and resetting


D Trip unit (circuit breaker only)

E Trip unit adjustment dials (circuit breaker only)

For more information about rotary handle configuration and installation, consultthe instruction sheets on the Schneider Electric website:

• GHD16291AA Direct rotary handle for ComPact NSX100-250 DC• GHD16319AA Direct rotary handle for ComPact NSX400-630 DC

34 DOCA0066EN-04

https://download.schneider-electric.com/files?p_Doc_Ref=GHD16291AA




Front Face with Extended Rotary Handle

For circuit breakers with an extended rotary handle:• The circuit breaker operating controls are on the door escutcheon.• The operation indicators and settings are only accessible when the door is

open• The locking mechanisms, page 45 are on the circuit breaker (optional) and on

the door escutcheon (door closed).There are two models of extended rotary handle:

• Black handle for standard applications• Red handle on yellow bezel for machine control applications

Cabinet door open Cabinet door closed

trip 100/250A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

250 175225 200

A

Ir Ii

TM250 D250 A/40°C

Ir Ii

2000

2500

2250

1500

1250

1750

A

On

I

0Off

Tri

p

trip

Reset

Ui 800 V Uimp 8 kV

(V)Ue Icu

100

cat A

(kA) Ics

100

NSX250S DCCompact

c100 100c

750 (3P) 100 100c

250 (1P)500 (2P)

IEC / EN 60947-2

Off

On

Trip

Reset

0

I

Ø5...8

A

F

B

C

D

E

A Faceplate

B Open door shaft operator


D Trip unit

E Trip unit adjustment dials

F Extended rotary handle for opening, closing, and resetting

For more information about extended rotary handle installation, consult theinstruction sheets on the Schneider Electric website:

• GHD16292AA Extended rotary handle for ComPact NSX100-250 DC• GHD16320AA Extended rotary handle for ComPact NSX400-630 DC

DOCA0066EN-04 35




Opening, Closing, and Resetting the Circuit Breaker

Opening and Closing Locally

• To close the circuit breaker, turn the rotary handle clockwise from the O (OFF)position to the I (ON) position.

• To open the circuit breaker, turn the rotary handle counterclockwise from the I(ON) position to the O (OFF) position.


The circuit breaker has tripped on electrical fault, the rotary handle has movedfrom the I (ON) position to the Trip position.




The fact that a circuit breaker has tripped does not remedy the cause of the faultdetected on the downstream electrical equipment.



1 – Isolate the feed, page 19 before inspecting thedownstream electrical equipment.

Trip

2 – Look for the cause of the detected fault. Trip

3 – Inspect and, if necessary, repair the downstreamequipment.

Trip

4 – Inspect the equipment in the event of a short-circuittrip.

Trip

36 DOCA0066EN-04




5 Reset the circuit breaker by turning the rotary handlecounterclockwise from the Trip position to O (OFF).

O (OFF)

6 Close the circuit breaker by turning the rotary handleclockwise to I (ON).

I (ON)

DOCA0066EN-04 37


Testing a Circuit Breaker With Direct Rotary Handle





When testing the trip mechanism, take precautions against:• Disrupting operations• Activating inappropriate alarms• Triggering unwanted actions




1 Close the circuit breaker. I (ON)

2 Press the push-to-trip button: the circuitbreaker trips.

Trip

38 DOCA0066EN-04




3 Reset the circuit breaker by turning therotary handle counterclockwise from theTrip position to O (OFF).

O (OFF)

4 Close the circuit breaker by turning therotary handle clockwise to I (ON).

I (ON)

DOCA0066EN-04 39


Locking a Circuit Breaker With Direct Rotary Handle

Locking Accessories

Lock handle with up to three padlocks (not supplied) or a keylock.

Accessory Padlocks

Padlocking (standard) only in theO (OFF) position.

Lock handle with up to threepadlocks (not supplied) withshackle diameters of 5–8 mm(0.2–0.3 in).

Padlocking (after modification tothe rotary handle duringinstallation) in the two positions I(ON) and O (OFF).

Lock handle with up to threepadlocks (not supplied) withshackle diameters of 5–8 mm(0.2–0.3 in).

Keylocking with a Profalux® orRonis® lock (optional).

The circuit breaker can be lockedin the O (OFF) position only or inthe O (OFF) and I (ON) position,depending on the bolt chosen.

A Profalux or Ronis lock can beinstalled on site.

Keylocking can be used at thesame time as padlocking.

NOTE: Locking the rotary handle in the I (ON) position does not disable thecircuit breaker protection functions. If there is an electrical fault, the circuitbreaker still trips. When unlocked, the handle moves to the Trip position. Toreturn the circuit breaker to service, follow the resetting instructions, page 36.

Door Locking (MCC Function)

Further options are offered with the direct rotary handle in the MCC function.

When the circuit breaker is in the I (ON) position, the direct rotary handle locks thedoor in the closed position.

40 DOCA0066EN-04




Only qualified persons are authorized to disable the door lock.


Temporarily disable this lock to open the door when the circuit breaker is in the I(ON) position.

Disabling this lock requires modifying the rotary handle. Consult the instructionsheet GHD16295AA MCC conversion accessory for ComPact NSX100-630.

If the lock has been disabled, the following direct rotary handle functions areinoperative:

• Door locking• Preventing the circuit breaker from being closed when the door is open

Preventing Circuit Breaker Closing When the Door Is Open

The door locking device can also help to prevent the direct rotary handle frombeing moved to the I (ON) position when the door is open.

Sealing Accessories


DOCA0066EN-04 41




Escutcheon mounting screw • Dismantling theescutcheon


Transparent protective cover • Altering trip unit settings• Accessing the test port

for the trip units



42 DOCA0066EN-04



Testing a Circuit Breaker With Extended Rotary Handle





When testing the trip mechanism take precautions against:• Disrupting operations• Activating inappropriate alarms• Triggering unwanted actions


There is no push-to-trip button on the door of a circuit breaker with a frontextended rotary handle. To check the trip mechanism, the door must first beopened.



1 Switch the circuit breaker to the open O (OFF)position. Open the door.

O (OFF)

2 Turn the circuit breaker from the O (OFF)position to the I (ON) position, using one of thefollowing tools:

• An open door shaft operator(LV426937).

• A flat wrench, taking care not to damagethe extension shaft or its surfacetreatment. The extension shaft is a solidsquare section shaft, 10 x 10 mm (0.39 x0.39 in).

The circuit breaker is ready for the test.

I (ON)

3 Press the push-to-trip button. The circuitbreaker trips.

Trip

DOCA0066EN-04 43



4 Use a special tool (refer to step 2) to turn theextension shaft counterclockwise and switchthe circuit breaker from the Trip position to theO (OFF) position. The circuit breaker is in theopen position.

O (OFF)

5 Close the door. –

44 DOCA0066EN-04



Locking a Circuit Breaker With Extended Rotary Handle

Locking Accessories

The extended rotary handle offers several locking functions to:• Prevent the rotary handle being operated.• Prevent the door being opened.

Some locking functions can be disabled on different adaptations.

The handle can be locked with up to three padlocks (not supplied) or keylock.

Accessory Padlocks

Padlocking (standard) in the O(OFF) position.

Padlocking the rotary handle inthe O (OFF) position does notprevent the door from opening.

Lock rotary handle with up tothree padlocks (not supplied)with shackle diameters of 5–8mm (0.2–0.3 in).

Padlocking (after modification tothe rotary handle duringinstallation) in the two positions I(ON) and O (OFF).

There is a choice of two optionswhen locking the rotary handlein the I (ON) position:

• Standard with the dooropening locked.

• As an option, door is notinterlocked, and lockingthe rotary handle does notstop the door fromopening.

Lock rotary handle with up tothree padlocks (not supplied)with shackle diameters of 5–8mm (0.2–0.3 in).

Keylocking with a Profalux® orRonis® lock (optional).

The lock is mounted on the caseinside the switchboard.

Lock the circuit breaker in the O(OFF) position only or in the O(OFF) and I (ON) positionsdepending on the bolt chosen.

A Profalux or Ronis lock can beinstalled on site. Keylocking canbe used at the same time aspadlocking.

NOTE: Locking the rotary handle in the I (ON) position does not disable thecircuit breaker protection functions. If there is an electrical fault, the circuitbreaker still trips. When unlocked, the rotary handle moves to the Tripposition. To return the circuit breaker to service, follow the resettinginstructions, page 36.

Door Locking (MCC Function)

The extended rotary handle locks the door in the I (ON) position as standard.

DOCA0066EN-04 45



Only qualified persons are authorized to disable the door lock.


Temporarily disable this lock to open the door when the circuit breaker is in the I(ON) position.

Disabling this lock requires modifying the rotary handle. Consult the instructionsheets:

• GHD16292AA, Extended rotary handle for ComPact NSX100-250• GHD16320AA, Extended rotary handle for ComPact NSX400-630

.

Example: An application includes a circuit breaker for a switchboard incomingsupply and several receiver circuit breakers with extended rotary handles installedbehind the same door. Locking the door with a single rotary handle (incomingsupply circuit breaker) simplifies maintenance work on the switchboard.

Key-Operated Locking Procedure

Keylocking can be done with circuit breaker in either the O (OFF) position or the I(ON) position.

Step Action (circuit breaker in the O (OFF)position)

Action (circuit breaker in the I (ON)position)

1 Open the door. Open the door by disabling the door lockingdevice if necessary.

2 Use the keylock mounted on the case insidethe switchboard to lock the rotary handle.

Use the keylock mounted on the case insidethe switchboard to lock the rotary handle.

3 Close the door. Close the door, disabling the door lockingdevice if necessary.

Sealing Accessories

The sealing accessories, page 40 for circuit breakers with extended rotaryhandles are identical to those for circuit breakers with direct rotary handles.

46 DOCA0066EN-04



Motor-Operated Circuit BreakersComPact NSX DC Circuit Breakers 100-1200 A and


Motor-Operated Circuit BreakersWhat’s in This Chapter

Front Face Description ..................................................................................48Opening, Closing, and Resetting a Circuit Breaker With MotorMechanism ...................................................................................................50Opening, Closing, and Resetting Circuit Breakers With CommunicatingMotor Mechanism..........................................................................................53Locking the Circuit Breaker ............................................................................54

DOCA0066EN-04 47

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Motor-Operated Circuit Breakers


Front Face

The main controls, operation indicators, settings, and locking mechanisms are onthe front of an electrically operated circuit breaker (with motor mechanism).

OFF

Ø5...8

ON

OFF charged

Ui 800 V Uimp

(V)Ue Icu

cat A50/60Hz

NSX250 HB2Compact

440 30~

40~220/24036~380/415

500 25~525 22 22~660/690 8 8~

IEC / EN 60947-2NEMA AB1 HIC(kA)

240V 85~480V 35~600V 10~

420480540

600

600A/403000

2700

2400 2100

1800

1500

TM 600 DC

Ii

Ii

420480540

600

600A/403000

2700

2400 2100

1800

1500

TM 600 DC

Ii

Ii

Ui 800 V Uimp

(V)Ue Icu

100

cat A

NSX250S DCCompact

c100c

750 (3P) 100c

250 (1P)500 (2P)

IEC / EN 60947-2

Ui 800 V Uimp

(V)Ue Icu

100

cat A

NSX250S DCCompact

c100c

750 (3P) 100c

250 (1P)500 (2P)

IEC / EN 60947-2

A. FaceplateB. Charging handleC. Keylocking in O (OFF) positionD. Main contacts position indicatorE. Spring-charged and ready-to-close indicatorF. Padlocking in O (OFF) positionG. Manual/automatic operating mode selector

48 DOCA0066EN-04



H. Closing (I) and opening (O) pushbuttonsI. Sealing accessoryJ. Trip unit (circuit breaker only)

For more information about motor mechanism installation, consult the instructionsheets on the Schneider Electric website:

• GHD16272AA ComPact NSX100-250 Motor Mechanism• GHD16318AA ComPact NSX400-630 Motor Mechanism

Main Contacts Position Indicator

Indicator Description

The circuit breaker is closed.

The circuit breaker is open or tripped.

NOTE: Use the SD or SDE switch to distinguish the Trip position from the O(OFF) position.

Control Charge Indicator

Indicator Description

Stored energy control charged

Stored energy control discharged

NOTE: Stored energy control only provides the necessary energy to close thecircuit breaker. The circuit breaker mechanism supplies the energy for tripping.

Manu/Auto Selector

The Manu/Auto selector is used to select operating mode:• In automatic operating mode, only electrical commands are executed.• In manual operating mode, all electrical commands are disabled.

DOCA0066EN-04 49




Opening, Closing, and Resetting a Circuit Breaker With MotorMechanism

Introduction

The motor mechanism can open and close a circuit breaker remotely withelectrical commands. There are many applications:

• Automation of electrical distribution to optimize operating costs• Normal/standby source changeover: changes over to a replacement source

to improve continuity of service• Load shedding/reconnection to optimize tariff-based contracts

CAUTIONHAZARD OF REPEATED CLOSING ON ELECTRICAL FAULT

Do not modify the wiring diagrams for the motor mechanism.


Wire the motor mechanism in strict accordance with the motor mechanism wiringdiagram in the appendix.

In automatic operating mode, wiring the SDE contact helps to prevent the circuitbreaker from resetting automatically on an electrical fault. For more informationabout the SDE contact, refer to the indication contacts.

Manual Operation: Opening, Closing, and Resetting Locally

Move the selector to the Manu position.

Cycle of operation:

50 DOCA0066EN-04



Manual Operation Description

Check that the spring-charged indicator is on charged (A). If not, reset the circuitbreaker.

Step Action Comment

1 Close the circuit breaker by pressing the closing

pushbutton .

When the circuit breaker is closed:• The contact position indicator

(B) changes to I (ON).• The spring-charged indicator

(C) changes to discharged.

2 Open the circuit breaker by pressing the

opening pushbutton .

When the circuit breaker is open:• The contact position indicator

(D) changes to O (OFF).• The spring-charged indicator

(E) stays on discharged.

3 Reset the circuit breaker: recharge the closingspring by operating the charging handle (eighttimes).

When the circuit breaker is ready tobe closed:

• The contact position indicator(F) stays on O (OFF).

• The spring-charged indicator(A) changes to charged.

Automatic Operation: Opening, Closing, and Resetting Remotely

Move the selector to the Auto position.

Cycle of operation:

Automatic Operation Description

Step Action Comment

1 Close the circuit breaker by sending a close (ON)command.

When the circuit breaker is closed:• The contact position indicator

(A) changes to I (ON).• The spring-charged indicator

(B) changes to discharged.

2 Open the circuit breaker by sending an open(OFF) command.

When the circuit breaker is open:• The contact position indicator

(C) changes to O (OFF).• The spring-charged indicator

(D) stays on discharged.

3 Recharge the stored energy control by using oneof the three reset modes, depending on thewiring diagram:

• Automatic reset• Remote reset by using the pushbutton• Manual reset by operating the charging

handle

The circuit breaker is ready to beclosed:

• The contact position indicator(E) stays on O (OFF).

• The spring-charged indicator(F) changes to charged.

DOCA0066EN-04 51



Resetting after a trip on electrical fault can only be done locally. When operating inautomatic mode, return to manual operation to reset the circuit breaker.




The fact that a protection has tripped the circuit breaker does not remedy thecause of the fault detected on the downstream electrical equipment.


Step Action

1 Isolate the feed, page 19 before inspecting the downstream electrical equipment.

2 With selector on Manu, operate the charging handle 8 times to reset the circuit breakerin ready-to-close position.

Result: The spring-charged indicator changes to charged (B) and the internalmechanism goes from the Trip position to the O (OFF) position (A).

3 Lock the circuit breaker.

4 Look for the cause of the detected fault.

5 Inspect and, if necessary, repair the downstream equipment.

6 Inspect the equipment in the event of a short-circuit trip.

7 Reset and close the circuit breaker.

52 DOCA0066EN-04



Opening, Closing, and Resetting Circuit Breakers WithCommunicating Motor Mechanism

Introduction

Manage the communicating motor mechanism with the communication network.

For this function, it is necessary to:• Install a Breaker Status Control Module (BSCM), page 83 and the NSX cord,

page 87.• Use a communicating motor mechanism.

Connect the BSCM to the network with by the NSX cord:• To receive closing, opening, and reset commands from the circuit breaker.• To transmit the circuit breaker states: O (OFF), I (ON), Tripped by SDE.NOTE: The communicating motor mechanism has a specific reference (referto LVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC -DC PV Catalog).

The BSCM can be configured using EcoStruxure Power Commission software,page 18.

The schematic for the communicating motor mechanism in the BSCM can beconfigured. It must be created in strict accordance with the simplified motormechanism schematic, page 128.


Do not modify the wiring diagrams for the motor mechanism.


Manual Operation: Opening, Closing, and Resetting Locally

The process is the same as the standard motor mechanism, page 50.

Automatic Operation: Opening, Closing, and Resetting Remotely

The process is the same as the standard motor mechanism, page 51.


Without modifying the factory configuration, the process is the same as thestandard motor mechanism, page 52.

Using EcoStruxure Power Commission software to reconfigure the BSCM module, page 86 authorizes remote resetting after a trip on electrical fault on a circuitbreaker with communicating motor mechanism.

DOCA0066EN-04 53



Locking the Circuit Breaker

Locking Accessories


When the circuit breaker toggle handle is locked in the (O) OFF position, alwaysuse a properly rated voltage sensing device to confirm that power is off beforeworking on equipment.


Lock the mechanism with up to three padlocks (not supplied) or a keylock.

Both locking methods can be used at the same time.

Step Action Comment Result

1 Switch the circuit breaker tothe O (OFF) position.

–

2 Pull out the tab –

3 Lock the tab using:• Up to three padlocks

5-8 mm (0.2-0.3 in) indiameter.

• A keylock (optional).

The circuit breaker islocked.

No commands in Automode or Manu mode areexecuted.

Sealing Accessories



Motor mechanism mountingscrew

• Dismantling theescutcheon


automanumanu

automanu

autoautomanumanu

automanu

auto

Transparent cover for themotor mechanism

Accessing the manual/automatic selector (dependingon its position, manualoperation(1), or automaticoperation is disabled).

54 DOCA0066EN-04




Transparent protective coverfor the trip units

Altering any settings andaccessing the test port.



(1) In this case no local operations are possible.

DOCA0066EN-04 55


ComPact NSX DC Installation AccessoriesWhat’s in This Part

Installation Accessories Summary ...................................................................57Plug-in Circuit Breaker....................................................................................58Withdrawable Circuit Breaker ..........................................................................62Accessories ...................................................................................................69

56 DOCA0066EN-04

Installation Accessories SummaryComPact NSX DC Circuit Breakers 100-1200 A and


Installation Accessories Summary

Accessories for General-Purpose ApplicationsThe following table shows the installation modes compatible with the ComPactNSX DC circuit breakers for general-purpose applications. For further details, referto LVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC - DCPV Catalog.

Installation Modes NSX100 DC NSX160 DC NSX250 DC NSX400 DC NSX630 DC NSX1200 DC


Fixed ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

Plug-in – ✔ ✔ – ✔ ✔ ✔ ✔ ✔ –

Withdrawable – ✔ ✔ – ✔ ✔ ✔ ✔ ✔ –

Accessories for Photovoltaic ApplicationsThe following table shows the installation modes compatible with the ComPactNSX DC circuit breakers for photovoltaic applications. For further details, refer toLVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC - DC PVCatalog.

Installation Modes NSX80DC PV

NSX100DC PV

NSX125DC PV

NSX160DC PV

NSX200DC PV

NSX400DC PV

NSX500DC PV

4P 4P 4P 4P 4P 4P 4P

Fixed ✔ ✔ ✔ ✔ ✔ ✔ ✔

Plug-in – – – – – – –

Withdrawable – – – – – – –

DOCA0066EN-04 57



ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Plug-in Circuit Breaker

Plug-in Circuit Breaker

IntroductionPlug-in base circuit breakers make it possible to:

• Extract and/or rapidly replace the circuit breaker without having to touch theconnections on the base.

• Allow for the addition of future circuits by installing bases that will be equippedwith a circuit breaker at a later date.

• Isolate the power circuits when the circuit breaker is mounted on or through apanel. It acts as a barrier for the connections of the plug-in base. Insulation ismade complete by the mandatory short terminal shields, page 61 on thecircuit breaker.

The following types of circuit breaker can be installed in a plug-in base:• 3P and 4P circuit breakers for general-purpose applications• Circuit breakers with toggle handle, direct rotary handle, or extended rotary

handle• Motor-operated circuit breakers

The plug-in circuit breaker is made up of the fixed circuit breaker and a plug-in kit,which includes:

• Plug-in base• Power connections• Short terminal shields• Safety trip interlock

58 DOCA0066EN-04

Plug-in Circuit BreakerComPact NSX DC Circuit Breakers 100-1200 A and


Disconnecting the Circuit Breaker


electrical work practices. See NFPA 70E, CSA Z462, NOM-029-STPS, orlocal equivalent.

• This equipment must only be installed and serviced by qualified electricalpersonnel.

• The circuit breaker must be in the O (OFF) position.• Do not use tools to disconnect or connect the circuit breaker.Failure to follow these instructions will result in death or serious injury.

Follow this procedure to disconnect the circuit beaker:

Step Action

1 Switch the circuit breaker to the O (OFF) position.

2 Remove both mounting screws.

3 Pull out the circuit breaker, keeping it horizontal.

NOTE:• The auxiliary circuits automatically disconnect because of the connectors

located on the base and at the rear of the circuit breaker.• Open the circuit breaker before disconnecting it. If the circuit breaker is in

the closed I (ON) position when disconnecting, a pre-trip mechanism tripsthe circuit breaker before the pins are disconnected.

DOCA0066EN-04 59

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Plug-in Circuit Breaker

Connecting the Circuit Breaker





Follow this procedure to connect the circuit beaker:

Step Action


2 Connect the circuit breaker.

3 Replace both mounting screws. Tighten the screws toa torque of 2.5 N•m (22.1 lb-in).

NOTE:• The auxiliary circuits automatically disconnect because of the connectors

located on the base and at the rear of the circuit breaker.• Open the circuit breaker before connecting it. If the circuit breaker is in the

closed I (ON) position when connecting, the pre-trip mechanism trips itbefore the pins are connected.

60 DOCA0066EN-04

Plug-in Circuit BreakerComPact NSX DC Circuit Breakers 100-1200 A and


Protection Against Direct Contact with Power CircuitsAn adapter enables the base to take the same isolation and connectionaccessories as the unit-mount circuit breaker.

Configuration Protectionindex

Description

IP20 Built-in plug-in base:• Without circuit breaker• With circuit breaker without terminal

shields

IP40 Built-in plug-in base and circuit breaker withterminal shields.

IP40 Plug-in base with adapter, terminal shields andblanking plate without circuit breaker:

• The adapter enables the use of all theconnection accessories of the fixed circuitbreaker. It is required to equip the plug-incircuit breaker with long and shortterminal shields and interphase barriers.

• Terminal shields are mandatory for plug-incircuit breakers. Short terminal shieldsare supplied in the plug-in kit. They canbe replaced by long terminal shieldsavailable as an option.

• The blanking plate is not supplied bySchneider Electric.

IP40 Plug-in base with adapter and terminal shields,and circuit breaker with terminal shields.

For more information about configurations and installation, consult the instructionsheets on the Schneider Electric website:

• GHD16276AA Plug-in base for ComPact NSX100-250• GHD16316AA Plug-in base for ComPact NSX400-630

DOCA0066EN-04 61

http://download.schneider-electric.com/files?p_Doc_Ref=GHD16276AA


ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Withdrawable Circuit Breaker

Withdrawable Circuit Breaker

IntroductionIn addition to the advantages provided by a plug-in base, installation of the circuitbreaker on a chassis facilitates handling. Withdrawable chassis circuit breakersoffer three positions, with transfer from one to the other after mechanicalunlocking:

• Connected: the power circuits are connected.• Disconnected: the power circuits are disconnected, the circuit breaker can be

operated to check auxiliary operation.• Removed: the circuit breaker is free and can be removed from the chassis.

The following types of circuit breaker can be installed in a chassis:• 3P and 4P circuit breakers for general-purpose applications• Circuit breakers with toggle handle, direct rotary handle, or extended rotary

handle• Motor-operated circuit breakers

The withdrawable circuit breaker is made up of:• The fixed circuit breaker• A plug-in kit• Two chassis side plates for the plug-in base• Two chassis side plates for the circuit breaker

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Withdrawable Circuit BreakerComPact NSX DC Circuit Breakers 100-1200 A and


Disconnecting the Circuit Breaker





Follow this procedure to disconnect the circuit breaker:

Step Action


2 Move both locking levers down as far as they cango.

3 Push down both operating handles at the sametime until you hear a double-click from the lockinglevers (as the locking levers return to their originalposition).

The circuit breaker is disconnected.

NOTE:• The auxiliary circuits can be:◦ Automatically disconnected because of the connectors located on the

chassis and at the rear of the circuit breaker.◦ Left connected for a circuit breaker with a manual auxiliary connector.

• Open the circuit breaker before disconnecting it. If the circuit breaker is inthe closed I (ON) position when disconnecting, a safety mechanismensures that the poles open automatically by tripping the circuit breakerbefore the pins disconnect.

DOCA0066EN-04 63


Removing the Circuit Breaker





Follow this procedure to remove the circuit breaker:

Step Action

1 Disconnect the circuit breaker.

Disconnect the manual auxiliary connector (if the circuitbreaker has one).

2 Move both locking levers down.

3 Push down both operating handles as far as the next notch.

4 Remove the circuit breaker, keeping it horizontal.

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Connecting the Circuit Breaker





Follow this procedure to connect the circuit breaker:

Step Action

1 Switch the circuit breaker to the open O (OFF)position.

Move both operating handles down to the lowposition on the chassis.

Push in the circuit breaker until the locking leversclicks.

2 Move both locking levers forward.

3 Raise both locking levers at the same time.

NOTE: Open the circuit breaker before connecting it. If the circuit breaker is inthe closed I (ON) position when connecting, a safety mechanism ensures thatthe poles open automatically by tripping the circuit breaker before the pinsconnect.

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Withdrawable Circuit Breaker Protection Against Direct ContactWith Power Circuits

The following table shows withdrawable circuit breaker configurations with thecorresponding protection indices (IP):

Configuration Protectionindex

Description

IP20 Built-in chassis:• Without circuit breaker• With circuit breaker without terminal shields

IP40 Built-in chassis and circuit breaker with terminalshields.

IP40 Chassis with adapter, terminal shields and blankingplate without circuit breaker:

• The adapter enables the use of all theconnection accessories of the withdrawablecircuit breaker. It is required to equip thewithdrawable circuit breaker with long andshort terminal shields and interphasebarriers.

• Terminal shields are mandatory forwithdrawable circuit breakers. Short terminalshields are supplied in the plug-in kit. Theycan be replaced by long terminal shieldsavailable as an option.

• The blanking plate is not supplied bySchneider Electric.

IP40 Chassis with adapter and terminal shields, andcircuit breaker with terminal shields.

For more information about configurations and installation, consult the instructionsheets on the Schneider Electric website:

• GHD16277AA Chassis side plates for ComPact NSX100-250• GHD16317AA Chassis side plates for ComPact NSX400-630

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Auxiliary Circuit Test with Circuit Breaker Disconnected(Optional)

The auxiliary circuit test function is possible with circuit breakers which havemanual auxiliary connectors.

In the disconnected position, operate the circuit breaker (by the actuator or push-to-trip button) to check whether the auxiliary circuits are working correctly.

Disconnect the manual auxiliary connector (if the circuit breaker has one) beforeremoving the circuit breaker.

Carriage Switches (Optional)Two changeover contacts can be installed on the chassis:

A Connected-position carriage switch (CE)

B Disconnected-position carriage switch (CD)

For more details about contact operation, refer to control auxiliaries, page 89.

Carriage switches, in conjunction with the IO module, provide the chassismanagement function, which is used to:

• Record and check the position of the moving part of the withdrawable circuitbreaker in the chassis

• Provide information about preventive maintenance actions• Notify the remote controller about the position of the withdrawable circuit

breaker.For more information about the chassis management function, refer toDOCA0055EN Enerlin'X IO - Input/Output Application Module for One IEC CircuitBreaker - User Guide.

Locking the ChassisThe chassis handle can be locked with up to 3 padlocks (not supplied) or keylock.

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Illustration Description

Lock the circuit breaker using up to 3 padlocks (not supplied) with ashackle diameter of 5–8 mm (0.2–0.3 in.) to prevent connection.

Lock the circuit breaker using a keylock in the connected position.

Lock the circuit breaker using a keylock in the disconnectedposition.

For more information about the accessory offer, refer to LVPED208006ENComPact NSX, ComPact INS/INV, MasterPact NW DC - DC PV Catalog.

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AccessoriesComPact NSX DC Circuit Breakers 100-1200 A and


Accessories

Accessories for SafetyA comprehensive accessory offer is available for ComPact NSX DC circuitbreakers. Accessories can be installed on site to improve safety and ease ofoperation.

Sealed boot for the togglehandle, providing IP43protection on the front

Short or long terminal shields,providing IP40 protection

Flexible interphase barriersimproving isolation betweenpower connections

For more details on the range of accessories, refer to LVPED208006EN ComPactNSX, ComPact INS/INV, MasterPact NW DC - DC PV Catalog.

Accessories for Safety According to Circuit Breakers• For switch-disconnectors ≥ 500 Vdc, compulsory accessories for safety are:◦ terminal shields◦ interphase barriers

• For circuit breakers ≥ 500 Vdc, compulsory accessories for safety areterminal shields

• For circuit breakers or switch-disconnectors < 500 Vdc, optional accessoriesfor safety are:◦ terminal shields◦ interphase barriers

Terminal Shields with Precut Grids

1 Cutting a grid

2 Adjusting the size of the grid

3 Inserting the grid in the terminal shield

Terminal shields with precut grids simplify the onsite connection of circuit breakersregardless of the number of conductors to be connected. The procedure forinstalling precut guides is described in the instruction sheets, page 7.

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Accessories

Short Terminal Shields

The procedure for installing short terminal shields is described in the instructionsheets, page 7.

70 DOCA0066EN-04


ComPact NSX DC Electric Auxiliary DevicesWhat’s in This Part

Electric Auxiliary Devices Summary.................................................................72Indication Contacts.........................................................................................77Wireless Indication Auxiliary............................................................................79BSCM Breaker Status Control Module .............................................................83NSX Cord ......................................................................................................87Control Auxiliaries ..........................................................................................89

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Electric Auxiliary Devices Summary

Electric Auxiliary Devices Summary

Electric Auxiliary Devices for General-Purpose ApplicationsThe following table shows the electric auxiliary devices that can be added to theComPact NSX DC circuit breakers for general-purpose applications. For moreinformation, refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

Electric Auxiliary Device NSX100 DC NSX160 DC NSX250 DC NSX400 DC NSX630 DC NSX1200 DC


OF or SD indicationauxiliary (wired or wireless)

– ✔ ✔ – ✔ ✔ ✔ ✔ ✔ ✔

SDE auxiliary contact – – ✔ – – ✔ ✔ ✔ ✔ ✔

MN undervoltage triprelease

– ✔ ✔ – ✔ ✔ ✔ ✔ ✔ ✔

MX shunt trip release – ✔ ✔ – ✔ ✔ ✔ ✔ ✔ ✔

BSCM breaker statuscontrol module

– – ✔ – – ✔ ✔ ✔ ✔ ✔

NSX cord – – ✔ – – ✔ ✔ ✔ ✔ ✔

Electric Auxiliary Devices for Photovoltaic ApplicationsThe following table shows the electric auxiliary devices that can be added to theComPact NSX DC circuit breakers for photovoltaic applications. For moreinformation, refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

Electric Auxiliary Device NSX80DC PV

NSX100DC PV

NSX125DC PV

NSX160DC PV

NSX200DC PV

NSX400DC PV

NSX500DC PV

4P 4P 4P 4P 4P 4P 4P

OF or SD indication auxiliary(wired or wireless)

✔ ✔ ✔ ✔ ✔ ✔ ✔

SDE auxiliary contact ✔ ✔ ✔ ✔ ✔ ✔ ✔

MN undervoltage trip release ✔ ✔ ✔ ✔ ✔ ✔ ✔

MX shunt trip release ✔ ✔ ✔ ✔ ✔ ✔ ✔

BSCM breaker status controlmodule

✔ ✔ ✔ ✔ ✔ ✔ ✔

NSX cord ✔ ✔ ✔ ✔ ✔ ✔ ✔

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Electric Auxiliary Devices SummaryComPact NSX DC Circuit Breakers 100-1200 A and


Safety Instructions for Photovoltaic ApplicationsSpecial care is required when adding electric auxiliary devices into circuit breakersfor photovoltaic applications.

DANGERHAZARD OF ELECTRIC SHOCK• Isolate the circuit breaker upstream and downstream before removing the

front cover.• Always use a properly rated voltage sensing device to confirm that power is

off.• Replace the front cover before turning on power to this equipment.Failure to follow these instructions will result in death or serious injury.

Slots for Electric Auxiliary Devices on ComPact NSX100/160 DC2P Circuit Breakers

The following table shows the possible slots for electric auxiliary devices mountedin the case. Only one auxiliary can be installed per slot. For more information,refer to LVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC- DC PV Catalog.

Electric Auxiliary Device Slot

A B C

OF1 (wired or wireless) ✔ – –

SD (wired or wireless) – ✔ –

MN – – ✔

MX – – ✔

Slots for Electric Auxiliary Devices on ComPact NSX100-250 DC3P/4P Circuit Breakers

The following table shows the possible slots for the electric auxiliary devicesmounted in the case. Only one auxiliary can be installed per slot. For moreinformation, refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

DOCA0066EN-04 73




Electric AuxiliaryDevice

Slot Comments

A B C D E

Standard remote indication and control auxiliaries

OF1 (wired or wireless) ✔ – – – – For all trip unit types andcontrol types (toggle handle,rotary handle, or motormechanism).

OF2 (wired or wireless) – – – ✔ –

SD (wired or wireless) – ✔ – – –

SDE (wired or wireless) – – ✔ – –

MN – – – – ✔

MX – – – – ✔

Communication

BSCM – – ✔ ✔ – For sending OF, SDE(BSCM), and SD (NSX cord)data to the communicationnetwork.

NSX cord – ✔ – – –

Slots for Electric Auxiliary Devices on ComPact NSX400–630–1200 DC 3P/4P Circuit Breakers

The following table shows the possible slots for the electric auxiliary devicesmounted in the case. For more information, refer to LVPED208006EN ComPactNSX, ComPact INS/INV, MasterPact NW DC - DC PV Catalog.


Slot Comments

A B C D E F G

Standard remote indication and control auxiliaries

OF1 (wired or wireless) – ✔ – – – –

OF2 (wired or wireless) – ✔ – – – – – For all trip unit types and control types(toggle handle, rotary handle, or motormechanism).

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Electric Auxiliary Devices SummaryComPact NSX DC Circuit Breakers 100-1200 A and



Slot Comments

A B C D E F G

OF3 (wired or wireless) ✔ – – – – – –

OF4 (wired or wireless) – – – – – – ✔

SD (wired or wireless) – – – – ✔ – –

SDE (wired or wireless) – – – – – ✔ –

MN – – – ✔ – – –

MX – – – ✔ – – –

Communication

BSCM – – – – – ✔ – For sending OF, SDE (BSCM), and SD(NSX cord) data to the communicationnetwork.NSX cord – – – – ✔ – –

Operation of the Indication ContactsThe following table shows the position of the indication contacts (or outputs)relative to the position of the actuator and main contacts.

Position of the actuator and the main contacts

ON Tripped by: OFF

MN/MX Push-to-Trip Trip Unit

Name Position of Indication Contacts

OF ✔ – – – –

SD – ✔ ✔ ✔ –

SDE – – – ✔ –

✔ : Contact closed

– : Contact open

NOTE: The indication (changeover) contacts are represented in theswitchboard by the state of the Normally Open (NO) contact.

The state of the NO contact is open:• for OF indication contacts when the circuit breaker is in the O (OFF)

position.• for SD and SDE indication contacts when the associated function is not

active.Sequence chart of the OF indication contacts relative to the main contacts

A Main contacts

B Position of OF changeover contacts

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Operation of the Wireless Indication AuxiliariesThe wireless indication auxiliary provides the same information as a standardwired indication contact in OF, SD, or SDE positions. The information is sentremotely to a gateway or panel server.

During commissioning of the wireless indication auxiliary, the user defines the typeof information sent: Open/Close or Trip.

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Indication ContactsComPact NSX DC Circuit Breakers 100-1200 A and


Indication Contacts

IntroductionOne indicator contact model provides OF, SD, and SDE indication functions. Theposition of the contact inside the case determines the function.

Indication contacts are either under the front face of the circuit breaker, under themotor mechanism, or in the rotary handle. Installation is in a compartment isolatedfrom the power circuits. There are two types:

• Standard contact with spring terminals

42

1

4

2

1

7

C

• Low-level contact with screw terminals

12

4

For more information about installation, consult the instruction sheet on theSchneider Electric website: NNZ4314501 Indication Contacts

Standard and Low-Level ContactsStandard and low-level contacts are the common point changeover type.

NC NO

NC Normally Closed contact

NO Normally Open contact

The following table describes the operation of standard and low-level volt-freecontacts:

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Indication Contacts

Name Definition

OF indicationcontact

Changeover: The NO contact is normally open when the circuit breaker is in theO (OFF) position.

SD indicationcontact

Trip indication: The SD contact indicates that the circuit breaker has trippeddue to:

• Electrical fault detected by the trip unit• Operation of the MX or MN voltage releases• Operation of the push-to-trip button• Connecting/Disconnecting the withdrawable circuit breaker• Manually opening the motor mechanism

SDE indicationcontact

Electrical fault indication: The SDE contact indicates that the circuit breakerhas tripped on an electrical fault due to an electrical fault detected by the tripunit.

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Wireless Indication AuxiliaryComPact NSX DC Circuit Breakers 100-1200 A and


Wireless Indication Auxiliary

IntroductionThe wireless indication auxiliary provides remote and local information about thecircuit breaker status.

The position of the wireless indication auxiliary inside the case, and the setting ofthe gateway or panel server, determine its function. The wireless indicationauxiliary provides the following information remotely:

Position of wireless indication auxiliary Information provided

OF slot Open/close circuit breaker status

SD slot Trip indication

SDE slot Electrical fault indication

When in the SD slot, the wireless indication auxiliary can be configured to indicatea circuit breaker trip locally. The status LED blinks orange for eight hours.

The wireless indication auxiliary must be paired with a gateway or panel server.

The wireless indication auxiliary is powered by an internal battery. It sends anotification to indicate that the battery needs to be replaced.

For more information about installation, consult the instruction sheet on theSchneider Electric website: NNZ8882801 Wireless Indication Auxiliary

Description

A

B

C

DE

A Reset button

B QR code to access device information, including RF-Id address

C Status LED

D Actuator

E Battery cover

Reset ButtonThe reset button allows you to :

• Access setting mode to set the status LED indication mode• Pair or unpair the wireless indication auxiliary

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Wireless Indication Auxiliary

Status LEDA status LED on the wireless indication auxiliary provides the followinginformation:

• Help with commissioning and maintenance steps• Status of communication between wireless indication auxiliary and gateway

or panel server• Status of the wireless indication auxiliary• Indication of circuit breaker trip (available when LED indication mode is ON).

Status LED Description Action

Wireless indication auxiliaryswitched off or not incommunication with gateway orpanel server.

None

0s 1s

Wireless indication auxiliary inpairing mode, searching for agateway or panel server.

Wait until the gateway or panelserver is identified.

0s 1s

Wireless indication auxiliary inidentification mode.

Wait until wireless indicationauxiliary is discovered in network.

Wireless indication auxiliary incommunication. One green flash ateach frame sent.

None

0s 1s

Trip indication when wirelessindication auxiliary is in SD slot andconfigured in LED indication modeON

Check tripping cause.

0s

Occasional loss of communicationwith the gateway or panel server.

Check communication setting withthe gateway or panel server.

0s 2s

Wireless indication auxiliary insetting mode, with LED indicationmode set to OFF.

Set LED indication mode to ON bypressing the Reset button.

0s 2s

Wireless indication auxiliary insetting mode, with LED indicationmode set to ON.

Set LED indication mode to OFFby pressing the Reset button.

0s 2s

Flashes only whenactuator is activated

Battery out of power Change the battery.

CommissioningCommission the wireless indication auxiliary by using EcoStruxure PowerCommission software or the webpages of the gateway or panel server.

NOTE: Check the firmware of the gateway before performing thecommissioning of the wireless indication auxiliary. It is recommended toupgrade to the latest version available.

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Wireless Indication AuxiliaryComPact NSX DC Circuit Breakers 100-1200 A and


Step Action

1 Put the wireless indication auxiliary in pairing mode in one of the following ways:• If the wireless indication auxiliary is not installed in the circuit breaker, press the

reset button or the actuator.• If the wireless indication auxiliary is installed in the OF slot, open and close the

circuit breaker.• If the wireless indication auxiliary is installed in the SD slot, open, close and action

the push-to-trip button on the circuit breaker.• If the wireless indication auxiliary is installed in the SDE slot, open, close and trip

the circuit breaker electrically.Result: The status LED blinks orange. The wireless indication auxiliary stays in pairingmode for three minutes.

2 Pair the gateway or panel server with the wireless indication auxiliary by usingEcoStruxure Power Commission software or the webpages of the gateway or panelserver.

Result: The status LED blinks green to indicate that the wireless indication auxiliary ispaired.

3 Configure the wireless indication auxiliary by using EcoStruxure Power Commissionsoftware or the webpages of the gateway or panel server.

Setting LED Indication ModeSet the LED indication mode of the wireless indication auxiliary to ON to indicate atrip locally when the wireless indication auxiliary is installed in the SD slot. TheLED indication mode is factory-set to OFF.

Follow this procedure to change the LED indication mode.

Step Action

1 Press the reset button.

Result: The wireless indication auxiliary wakes up.

2 Press the reset button three times in less than two seconds.

Result: The wireless indication auxiliary is in setting mode. the Status LED flashes threetimes every two seconds if LED indication mode is OFF, or six times every two seconds ifLED indication mode is ON.

3 Press the reset button once to change the LED indication mode from OFF to ON, or fromON to OFF.

4 To exit setting mode, press the reset button for three seconds.NOTE: If the reset button is not pressed, the wireless indication auxiliary exitssetting mode after two minutes.

Replacing the Internal BatteryThe wireless indication auxiliary sends a notification six months before the batteryneeds to be changed.

For more information about the spare battery, refer to LVPED217032EN, ComPactNSX & NSXm Catalogue.

Follow this procedure to replace the internal battery.

Step Action

1 Remove the wireless indication auxiliary from its slot. Refer to NNZ8882801 WirelessIndication Auxiliary Instruction Sheet.

2 Remove the battery cover by turning it clockwise.

3 Remove the battery and recycle it.

4 Insert the new battery, following the guidelines marked in the battery compartment.

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Wireless Indication Auxiliary

Step Action

5 Put back the battery cover and lock it by turning it anti-clockwise.

6 Reinstall the wireless indication auxiliary in its slot.

7 Put back the front cover of the circuit breaker.

Replacing the Wireless Indication AuxiliaryFollow this procedure to unpair the wireless indication auxiliary and delete it inEcoStruxure Power Commission software or the webpages of the gateway orpanel server before replacing the wireless indication auxiliary.

Step Action

1 Remove the wireless indication auxiliary from its slot. Refer to NNZ8882801 WirelessIndication Auxiliary Instruction Sheet.

2 Unpair the wireless indication auxiliary by pressing the reset button for at least threeseconds and releasing, or by using EcoStruxure Power Commission software or thewebpages of the gateway or panel server.

3 Install the new wireless indication auxiliary in its slot.

4 Pair the wireless indication auxiliary by following the procedure in Commissioning, page80.

5 Put back the front cover of the circuit breaker.

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BSCM Breaker Status Control ModuleComPact NSX DC Circuit Breakers 100-1200 A and


BSCM Breaker Status Control Module

IntroductionThe BSCM Breaker Status Control Module can be used to send the following datavia the communication network:

• Circuit breaker states from OF, SD, and SDE auxiliary contacts• Control instructions for the communicating motor mechanism (if present):

opening, closing, and resetting• Information to assist the operator: storage of the last 10 events

Installation of the BSCM requires:• The NSX cord• Pre-installation of the communicating motor mechanism (if present)

For more information about integrating ComPact NSX circuit breakercommunication functions, refer to:

• DOCA0093EN ULP System (IEC Standard) - User Guide• DOCA0091EN ComPact NSX - Modbus Communication Guide

Description

Item Data medium Data transmitted Comments

A BSCM microswitches State of OF and SDE contacts The BSCM takes the place of the auxiliary contactsin the OF and SDE slots.

B Connector for the NSX cord Communication network and state of SDcontact through the microswitch on theNSX cord

The NSX cord goes in the SD slot instead of theauxiliary contact.

C Connector for theMicroLogic 5 or 6 trip unit

Communication network The connector can be removed: no MicroLogic tripunit

D Connector for thecommunicating motormechanism

Controlling the communicating motormechanism

Status of the communicating motormechanism

Use the connector supplied with the communicatingmotor mechanism.

Installing the BSCM ModuleThe slots used to install the BSCM depend on the circuit breaker type.

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A BSCM Breaker Status Control Module

ComPact NSX100-250 DC 3P/4P ComPact NSX400-630 DC 3P/4P

ComPact NSX1200 DC 2P

A BSCM

B NSX cord

The BSCM cannot be installed at the same time as an OF contact or the SDEcontact.

The BSCM can be installed on site.

For more information about installation, consult the instruction sheet on theSchneider Electric website: GHD16046AA ComPact NSX100–630 – BSCM.

Connecting the BSCM ModuleTo install the BSCM module:

• Plug in the module.• Connect the connectors.

Setting Up the BSCM ModuleSetting up the BSCM on the communication network requires no addressing.

LED Indication on BSCM ModuleThe LED on the BSCM module is only visible when the front of the case isremoved. Use the LED indication on the BSCM module to confirm that the BSCMmodule is working during commissioning or maintenance operations.

ULP LED Mode Action

Nominal None

Conflict Remove extra ULPmodule

Degraded Replace BSCMmodule at the nextmaintenanceoperation

Test None

Non-criticalfirmwarediscrepancy

Upgrade firmwareat the nextmaintenanceoperation

Non-criticalhardwarediscrepancy

Replace BSCMmodule at the nextmaintenanceoperation

Configurationdiscrepancy

Install missingfeatures

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BSCM Breaker Status Control ModuleComPact NSX DC Circuit Breakers 100-1200 A and


ULP LED Mode Action

Criticalfirmwarediscrepancy

Use EcoStruxurePower Commissionsoftware to checkthe firmware andhardwarecompatibility andfollow therecommendedactions

Criticalhardwarediscrepancy

Stop Replace BSCMmodule

Power off Check powersupply

Data Provided by the BSCM Module

Configuration Information Can bereset

All circuit breakers withBSCM module

Count of the total number of times the circuit breakeropens and closes (count of OF contact operations).

This counter (totalizer) cannot be reset.

No

Count of the total number of times the circuit breakeropens and closes (count of OF contact operations)(1)

Yes

Maximum number of times the circuit breaker can openand close(2)

Yes

Count of the number of fault trips by the circuit breaker(count of SD contact operations)(1)

Yes

Count of the number of electrical fault trips by the circuitbreaker (count of SDE contact operations)(1)

Yes

Circuit breakers with BSCMmodule and communicatingmotor mechanism

Count of the number of times the communicating motormechanism opens(1)

No

Count of the number of times the communicating motormechanism closes(1)

Yes

Maximum number of times the communicating motormechanism closes(2)

Yes

Count of the number of times the communicating motormechanism resets(1)

Yes

(1) The user can modify the content of the counter if, for example, the BSCM module is installed orreplaced during operation.

(2) Overshooting the threshold results in a medium priority alarm. To acknowledge the alarm, modifythe content of the counter or the value of the threshold.

Configuring the BSCM ModuleTo configure the BSCM module, use a PC running the EcoStruxure PowerCommission software, page 18 and connected to the USB maintenance interface.

The USB maintenance interface must be connected to the RJ45 connector of aULP module (for example, IFM Modbus interface).

With EcoStruxure Power Commission software, you can configure:• The maximum number of times the circuit breaker can open and close.• The maximum number of times the communicating motor mechanism can

close.• The reset mode of the communicating motor mechanism.

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A BSCM Breaker Status Control Module

Configuring the Resetting of the Communicating MotorMechanism


Reconfiguring of the BSCM Breaker Status Control Module must be done onlyby qualified electrical personnel.


The reset mode of the communicating motor mechanism can be configured usingthe EcoStruxure Power Commission software:

• Enable Reset even if SDE to authorize resetting of the mechanism using thecommunication network even after an electrical fault trip.

• Enable Automatic Reset to authorize automatic resetting after tripping bythe MN, MX trip release, or push-to-trip button.

• Enable Reset even if SDE and Enable Automatic Reset to authorizeautomatic resetting even after an electrical fault trip.

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NSX CordComPact NSX DC Circuit Breakers 100-1200 A and


NSX Cord

IntroductionThe NSX cord connects a circuit breaker to the communication network.

The NSX cord can be used with a BSCM module.

For more information about integrating ComPact NSX DC circuit breakercommunication functions, refer to:

• DOCA0093EN ULP System (IEC Standard) - User Guide• DOCA0091EN ComPact NSX - Modbus Communication Guide

DescriptionThe NSX cord consists of a junction box, a cable equipped with an RJ45connector, and a cable equipped with a screw terminal block.

No. Data medium Datatransmitted

Comments

A NSX cord microswitch State of SDcontact

The NSX cord goes into the SDslot instead of the auxiliarycontact.

B Cable equipped with an RJ45connector for connection to aULP module.

Communicationnetwork

Three cable lengths are available:0.3 m (9.84 ft), 1.3 m (4.27 ft), and3 m (14.7 ft).

C Internal link to the BSCMmodule

Communicationnetwork

–

The NSX cord also provides the 24 Vdc power supply for the BSCM module (whenthis module is installed):

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ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A NSX Cord

InstallationThe slots used to install the NSX cord depend on the circuit breaker type.

ComPact NSX100-250 DC 3P/4P ComPact NSX400-630 DC 3P/4P

ComPact NSX1200 DC 2P

A NSX cord

B BSCM

The NSX cord cannot be installed at the same time as the SD auxiliary contact.

The NSX cord can be installed on site.

For more information about installation, consult the instruction sheet on theSchneider Electric website: GHD16047AA ComPact NSX100–630 – NSX cord.

Communication with the NSX CordThe NSX cord connects to the following ULP modules:

• IFM or IFE communication interface• FDM121 display• IO module

The figure below illustrates the connections from the NSX cord to the IFM Modbusinterface.

A IFM Modbus interface for one circuit breaker

B NSX cord

C BSCM module

88 DOCA0066EN-04


Control AuxiliariesComPact NSX DC Circuit Breakers 100-1200 A and


Control Auxiliaries

Control and Indication Contacts Installed Outside the CircuitBreaker

Control and indication contacts installed outside the case are contacts for specificapplications. Refer to LVPED208006EN ComPact NSX, ComPact INS/INV,MasterPact NW DC - DC PV Catalog.

CAM contacts Early-operation contacts

Install in the rotary handle:• Early-make contacts (CAF1, CAF2) actuate before the poles close

when a circuit breaker manual command is given.• The early-break changeover contact (CAO1) actuates before the

poles open when a circuit breaker manual command is given.

Carriage switches Connected (CE)/Disconnected (CD) carriage switches

Install on the chassis to indicate the position of the circuit breaker in thechassis:

A Connected position carriage switch (CE)

B Disconnected position carriage switch (CD)

Operation of connected/disconnected carriage switches

CE Connected position carriage switch

CD Disconnected position carriage switch

Voltage Trip ReleasesUse voltage trip releases to trip circuit breakers deliberately using an electricalsignal. Install these auxiliaries in the case under the front face.

The characteristics of these auxiliaries comply with the recommendations ofstandard IEC/EN 60947-2.

DOCA0066EN-04 89


ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Control Auxiliaries

MN

MN/UVR

IEC: 220-240V 50/60Hz

UL: 208-277V 60Hz

C1

C2

EXxxxxx

97XX

C. Xxx

MN undervoltage trip release

This release:• Trips the circuit breaker when the voltage is less than 0.35 times the rated

voltage Un. If the voltage is between 0.35 and 0.7 times the rated voltageUn, tripping is possible but not guaranteed. Above 0.7 times the ratedvoltage Un, tripping is impossible.

• Closes the circuit breaker again once the voltage reaches 0.85 times therated voltage.

Use this type of trip release for fail-safe emergency stops.

Time-delayunit

Time-delay unit for MN undervoltage trip release

The time-delay unit eliminates nuisance tripping of an undervoltage trip releasedue to transient voltage dips lasting < 200 ms.

There are 2 types of time-delay units: adjustable or fixed.

MX

MX/SHT

IEC: 220-240V 50/60Hz

UL: 208-277V 60Hz

C1

C2

EXxxxxx

97XX

C. Xxx

MX shunt trip release

This release trips the circuit breaker when the voltage exceeds 0.7 times the ratedvoltage Un.

90 DOCA0066EN-04


ComPact NSX DC Trip UnitsWhat’s in This Part

Trip Unit Summary .........................................................................................92TM-D Thermal-Magnetic Trip Unit for 1P and 2P Circuit Breakers ......................94TM-D Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers up to63 A ..............................................................................................................95TM-DC Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers from 80 Ato 250 A.........................................................................................................97TM-DC Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers from 250A to 600 A......................................................................................................99TM-DC Thermal-Magnetic Trip Unit for 2P Circuit Breakers from 630 A to1200 A ........................................................................................................ 101TM-G Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers up to 250A................................................................................................................. 103TM-DC PV Thermal-Magnetic Trip Unit for 4P Circuit Breakers ........................ 105Protection Against Ground Faults for Photovoltaic Applications........................ 108

DOCA0066EN-04 91

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Trip Unit Summary

Trip Unit Summary

General-Purpose ApplicationsThe following table shows the trip units compatible with the ComPact NSX DCcircuit breakers for general-purpose applications. For further details, refer toLVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC - DC PVCatalog.

Trip Units Built-in /Interchangeable

NSX100DC

NSX160DC

NSX250DC

NSX400DC

NSX630DC

NSX1200DC


NA (switch-disconnector)

Built-in – – – – – – – ✔ ✔ –


Interchangeable – – ✔ – – ✔ ✔ – – –

TM-D Built-in ✔ ✔ – ✔ ✔ – – – – –

TM-D Interchangeable – – ✔ – – ✔ – – – –

TM-DC Built-in – – – – – – – ✔ ✔ ✔

TM-DC Interchangeable – – ✔ – – ✔ ✔ – – –

TM-G Interchangeable – – ✔ – – ✔ ✔ – – –

Photovoltaic ApplicationsThe following table shows the trip units compatible with the ComPact NSX DCcircuit breakers for photovoltaic applications. For further details, refer toLVPED208006EN ComPact NSX, ComPact INS/INV, MasterPact NW DC - DC PVCatalog

Trip Units Built-in /Interchangeable

NSX80DC PV

NSX100DC PV

NSX125DC PV

NSX160DC PV

NSX200DC PV

NSX400DC PV

NSX500DC PV

4P 4P 4P 4P 4P 4P 4P


Built-in – ✔ – ✔ ✔ ✔ ✔

TM-DC PV Built-in ✔ – ✔ ✔ ✔ ✔ ✔

Protections and Settings of Thermal-Magnetic Trip UnitsThe adjustment dials are on the front of the trip units.

A Overload protection threshold

B Short-circuit protection pick-up

92 DOCA0066EN-04



Trip Unit SummaryComPact NSX DC Circuit Breakers 100-1200 A and


Upgradability of Thermal-Magnetic Trip UnitsInterchangeable trip units are upgradable. See tables above for more informationon interchangeable trip units.

Onsite swapping of interchangeable trip units is simple and reliable:• No connections to make• No special tools (for example, calibrated torque wrench)• Compatibility of trip units ensured by mechanical cap• Torque limited screw ensures proper mounting (see drawing below)

The design of the trip units limits the risk of incorrect tightening or oversights. Thesimplicity of the swapping process means that it is easy to make the necessaryadjustments as operation and maintenance processes evolve.

NOTE: When the trip unit has been mounted by this means, the trip unit canstill be removed: the screw head is accessible.

Sealing the ProtectionThe transparent cover on thermal-magnetic trip units can be sealed to preventmodification of the protection settings.

DOCA0066EN-04 93


TM-D Thermal-Magnetic Trip Unit for 1P and 2P CircuitBreakers

TM-D Thermal-Magnetic Trip Unit for 1P and 2PCircuit Breakers

IntroductionThe TM-D thermal-magnetic trip unit for 1P/2P circuit breakers up to 160 A arebuilt-in trip units.

They are designed for AC and DC general-purpose applications.

The TM-D built-in 1P/2P trip units provide:• fixed thermal threshold• fixed magnetic pickup

Setting the Thermal ProtectionThe thermal protection pickup Ir cannot be adjusted and equals the value shownbelow:

Trip unit rating In (A) at 40 °C (104 °F) 16 20 25 32 40 50 63 80 100 125 160

Fixed Pickup Ir (A) at 40 °C (104 °F) 16 20 25 32 40 50 63 80 100 125 160

Setting the Magnetic ProtectionThe magnetic protection pickup cannot be adjusted and equals the value shownbelow:

Trip unit rating In (A) 16 20 25 32 40 50 63 80 100 125 160

Fixed pickup Ii(A) +/– 20%

DC value 260 260 400 400 700 700 700 800 1,000 1,200 1,250

94 DOCA0066EN-04

TM-D Thermal-Magnetic Trip Unit for 3P and 4P CircuitBreakers up to 63 A


TM-D Thermal-Magnetic Trip Unit for 3P and 4PCircuit Breakers up to 63 A

IntroductionTM-D thermal-magnetic trip units for 3P/4P circuit breakers up to 63 A areinterchangeable trip units.

They are designed for AC and DC general-purpose applications.

The TM-D interchangeable 3P/4P trip units provide:• adjustable thermal threshold• fixed magnetic pickup

DescriptionThe setting range and adjustment dials are on the front of the trip unit.

A Setting range for TM-D thermal-magnetic 3P/4P trip unit

B Adjustment dial for the thermal protection pickup Ir

Setting the Thermal ProtectionThe thermal protection pickup Ir is set by a 4-setting dial.

Turning the thermal protection adjustment dial (A) modifies the trip curve asshown (B).

The following table shows the values of the pickup Ir (in amperes) for thermalprotection (values indicated on the dial) with respect to every trip unit rating,relative to the position of the dial Ir.

Trip unit rating In (A) at 40 °C (104 °F) 16 25 32 40 50 63

Pickup Ir (A) at 40 °C (104 °F) 11 18 22 28 35 44

13 20 26 32 40 50

14 23 29 36 45 57

16 25 32 40 50 63

DOCA0066EN-04 95


TM-D Thermal-Magnetic Trip Unit for 3P and 4P CircuitBreakers up to 63 A

Setting the Magnetic ProtectionThe magnetic protection pickup Ii cannot be adjusted and equals the value shownbelow:

Trip unit rating In (A) 16 25 32 40 50 63

Fixed pickup Ii (A)+/– 20%

DC value 260 400 550 700 700 700

96 DOCA0066EN-04

TM-DC Thermal-Magnetic Trip Unit for 3P and 4P CircuitBreakers from 80 A to 250 A


TM-DC Thermal-Magnetic Trip Unit for 3P and 4PCircuit Breakers from 80 A to 250 A

IntroductionThe TM-DC thermal-magnetic trip unit for 3P/4P circuit breakers from 80 A to 250A are interchangeable trip units.

They are designed for DC general-purpose applications.

The TM-DC 3P/4P trip units provide:• adjustable thermal threshold• fixed magnetic pick-up on trip units with In from 80 A to 160 A• adjustable magnetic pick-up on trip units with In 200 A and 250 A


A Setting range for TM-DC thermal-magnetic 3P/4P trip unit

B Adjustment dial for the thermal protection pick-up Ir

C Adjustment dial for the magnetic protection pick-up Ii (for TM-DC 200/250 only)

Setting the Thermal ProtectionThe thermal protection pick-up Ir is set by a 4-setting dial.


The following table shows the values of the pick-up Ir (in amperes) for thermalprotection (values indicated on the dial) with respect to every trip unit rating,relative to the position of the dial Ir.

Trip Unit Rating In (A) at 40 °C (104 °F)

80 100 125 160 200 250

Pick-up Ir (A) at 40 °C (104 °F)

56 70 87 112 140 175

64 80 100 128 160 200

DOCA0066EN-04 97




80 100 125 160 200 250


72 90 112 144 180 225

80 100 125 160 200 250

Setting the Magnetic Protection on Trip Units With In from 80 A to160 A

For trip units rated below 200 A, the magnetic protection pick-up cannot beadjusted and equals the value shown below:

Trip Unit Rating In (A)

80 100 125 160

Fixed Pick-up Ii (A) +/– 20%

True DC value 800 800 1,250 1,250

Setting the Magnetic Protection on Trip Units With In 200 A and250 A

For trip units rated between 200 A and 250 A, the magnetic protection pick-up Ii isset by a 6-setting dial.

Turning the magnetic protection adjustment dial (A) modifies the trip curve asshown (B).

The following table shows the values of the pick-up Ii (in amperes) for magneticprotection (values indicated on the dial), relative to the position of the Ii dial:


200 250

Pick-up Ii (A) +/– 20%

1,000 1,250

1,200 1,500

1,400 1,750

1,600 2,000

1,800 2,250

2,000 2,500

98 DOCA0066EN-04



TM-DC Thermal-Magnetic Trip Unit for 3P and 4PCircuit Breakers from 250 A to 600 A

IntroductionThe TM-DC thermal-magnetic trip unit for 3P/4P circuit breakers from 250 A to600 A are built-in trip units.


The TM-DC 3P/4P trip units provide:• adjustable thermal threshold• adjustable magnetic pick-up


A Setting range for TM-DC thermal-magnetic 3P/4P trip unit


C Adjustment dial for the magnetic protection pick-up Ii

DOCA0066EN-04 99







250 320 400 500 600


175 224 280 350 420

200 256 320 400 480

225 288 360 450 540

250 320 400 500 600

Setting the Magnetic ProtectionThe magnetic protection pick-up cannot be adjusted and equals the value shownbelow:


250 320 400 500 600


625 800 1000 1250 1500

750 960 1200 1500 1800

875 1120 1400 1750 2100

1000 1280 1600 2000 2400

1125 1440 1800 2250 2700

1250 1600 2000 2500 3000

100 DOCA0066EN-04

TM-DC Thermal-Magnetic Trip Unit for 2P Circuit Breakersfrom 630 A to 1200 A


TM-DC Thermal-Magnetic Trip Unit for 2P CircuitBreakers from 630 A to 1200 A

IntroductionThe TM-DC thermal-magnetic trip unit for 2P circuit breakers from 630 A to 1200 Aare built-in trip units.


The TM-DC 2P trip units provide:• adjustable thermal threshold• adjustable magnetic pick-up


A Setting range for TM-DC thermal-magnetic 2P trip unit


C Adjustment dial for the magnetic protection pick-up Ii

DOCA0066EN-04 101


TM-DC Thermal-Magnetic Trip Unit for 2P Circuit Breakersfrom 630 A to 1200 A





630 800 1000 1200


441 560 700 840

504 640 800 960

567 720 900 1080

630 800 1000 1200



630 800 1000 1200


1575 2000 2500 3000

1890 2400 3000 3600

2205 2800 3500 4200

2520 3200 4000 4800

2835 3600 4500 5400

3150 4000 5000 6000

102 DOCA0066EN-04

TM-G Thermal-Magnetic Trip Unit for 3P and 4P CircuitBreakers up to 250 A


TM-G Thermal-Magnetic Trip Unit for 3P and 4PCircuit Breakers up to 250 A

IntroductionThe TM-G thermal-magnetic trip unit for 3P/4P circuit breakers up to 250 A areinterchangeable trip units.


The TM-G interchangeable 3P/4P trip units provide:• adjustable thermal threshold• fixed magnetic pick-up

DescriptionThe adjustment dial is on the front of the trip unit.

A Setting range for the TM-G thermal-magnetic trip unit






16 25 40 63 80 100 125 160 200 250

Pick-up Ir (A)

11 18 28 44 56 70 88 112 140 175

13 20 32 50 64 80 100 128 160 200

14 23 36 57 72 90 113 144 180 225

16 25 40 63 80 100 125 160 200 250

DOCA0066EN-04 103


TM-G Thermal-Magnetic Trip Unit for 3P and 4P CircuitBreakers up to 250 A



16 25 40 63 80 100 125 160 200 250


AC value 63 80 80 125 200 320 440 440 440 520

DC value 80 100 100 150 240 380 530 530 530 620

104 DOCA0066EN-04

TM-DC PV Thermal-Magnetic Trip Unit for 4P Circuit BreakersComPact NSX DC Circuit Breakers 100-1200 A and


TM-DC PV Thermal-Magnetic Trip Unit for 4P CircuitBreakers

IntroductionThe TM-DC PV thermal-magnetic trip unit for 4P circuit breakers from 80 A to 500A are built-in trip units.

They are designed for DC photovoltaic applications.

The TM-DC PV 4P trip units provide:• adjustable thermal threshold• fixed magnetic pick-up on trip units with In from 80 A to 160 A• adjustable magnetic pick-up on trip units with In from 200 A to 500 A


A Setting range for TM-DC PV thermal-magnetic trip unit


C Adjustment dial for the magnetic protection pick-up Ii (on trip units with In from200 A to 500 A only)

DOCA0066EN-04 105


TM-DC PV Thermal-Magnetic Trip Unit for 4P CircuitBreakers





80 100 125 160 200 250 320 400 500


56 70 87 112 140 175 224 280 350

64 80 100 128 160 200 256 320 400

72 90 112 144 180 225 288 360 450

80 100 125 160 200 250 320 400 500

The thermal protection setting is fixed at the trip unit rating.

Setting the Magnetic Protection on Trip Units With In from 80 A to160 A

For trip units rated below 200 A, the magnetic protection pick-up cannot beadjusted and equals the value shown below:


80 100 125 160


DC value 800 800 1,250 1,250

106 DOCA0066EN-04

TM-DC PV Thermal-Magnetic Trip Unit for 4P Circuit BreakersComPact NSX DC Circuit Breakers 100-1200 A and


Setting the Magnetic Protection on Trip Units With In from 200 Ato 500 A

For trip units rated between 200 A and 500 A, the magnetic protection pick-up Ii isset by a 6-setting dial.

Turning the magnetic protection adjustment dial (A) modifies the trip curve asshown (B).

The following table shows the values of the pick-up Ii (in amperes) for magneticprotection (values indicated on the dial), relative to the position of the Ii dial:


200 250 320 400 500


1,000 1,250 1,600 2,000 2,500

1,200 1,500 1,920 2,400 3,000

1,400 1,750 2,240 2,800 3,500

1,600 2,000 2,560 3,200 4,000

1,800 2,250 2,880 3,600 4,500

2,000 2,500 3,200 4,000 5,000

DOCA0066EN-04 107


Protection Against Ground Faults for PhotovoltaicApplications

Protection Against Ground Faults for PhotovoltaicApplications

IntroductionProtection against ground faults in photovoltaic applications is provided by:

• insulation monitoring devices• overcurrent ground fault protection

Double Ground FaultsTo break a fault current at the operational photovoltaic system voltage, a minimumnumber of poles must be working in series. The minimum number of poles is afunction of the system voltage and voltage rating per pole of the protective device(circuit breaker or switch-disconnector).

Under certain conditions, a double ground fault can occur in photovoltaic systemsthat are isolated from ground. If an initial ground fault (initial isolation breakdownto ground) exists, without being detected and cleared, a second fault (secondisolation breakdown to ground) can lead to a double fault.

Depending on the location of the faults, it is possible that a subset number of therequired poles only be involved in the interruption of the fault. Not designed for thissituation, property damage or personal injury may occur.

To prevent such double fault scenarios, it is therefore imperative to detect theinitial isolation breakdown (first fault) using an isolation monitoring system andclear without delay the initial isolation breakdown to reduce the risk of double fault.

108 DOCA0066EN-04


ComPact NSX DC Circuit Breakers OperationWhat’s in This Part

Commissioning ............................................................................................ 110Maintaining the Circuit Breaker During Operation............................................ 114Responding to a Trip .................................................................................... 117Troubleshooting ........................................................................................... 119

DOCA0066EN-04 109

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Commissioning

Commissioning

List of Checks and Inspections








When starting up new equipment, or following lengthy downtime, a general checktakes just a few minutes. Such a check reduces the risk of a malfunction due toerror or oversight.

The following table indicates the checks and inspections to be performedaccording to the event:

A B C D E F G H I J K

Before commissioning ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ – ✔ ✔

Periodically during operation, page 114 ✔ – – – ✔ ✔ ✔ ✔ ✔ ✔ ✔

After carrying out work on the switchboard – ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

Periodically during lengthy downtime – ✔ ✔ – ✔ ✔ – ✔ – ✔ ✔

Following lengthy downtime – ✔ ✔ – ✔ ✔ ✔ ✔ ✔ ✔ ✔

Following lengthy downtime and modification to theswitchboard

✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

A Insulation and dielectric strength testsB Temperature rise testsC Inspect switchboardD Check compliance with the diagramE Inspect mechanical equipmentF Check connectionsG Check mechanical operationH Check trip units on devicesI Check pairing of the wireless devices with gateway or panel serverJ Check communicationK Clean equipment

110 DOCA0066EN-04

CommissioningComPact NSX DC Circuit Breakers 100-1200 A and


A: Insulation and Dielectric Strength Tests

CAUTIONHAZARD OF EQUIPMENT DAMAGE

Insulation and dielectric strength tests must only be carried out by qualifiedelectrical personnel.


Insulation and dielectric strength tests are carried out before the switchboard isdelivered. These tests are subject to the currently applicable standards.

These tests must be carried out periodically on photovoltaic 1,000 Vdcapplications.

Dielectric strength tests impose great stress on the equipment and can causedamage if performed incorrectly. In particular:

• Reduce the value used for the test voltage according to the number ofconsecutive tests on the same piece of equipment

• Disconnect electronic equipment if necessary

B: Temperature Rise TestsComPact NSX DC circuit breakers are designed to dissipate the temperature riseproduced by the relatively short series of connections of the poles. This isespecially important for photovoltaic applications where 4 poles in series (2 polesin series for each polarity) are required to break the rated current or fault currentwith all poles open at the open-circuit maximum voltage when it is equal to 1,000Vdc.

Temperature rise tests are carried out before the switchboard is delivered.ComPact NSX DC circuit breakers comply with product standards IEC 60947-1and 2.

For general-purpose systems, the tests are carried out with an ambienttemperature of 40 °C (104 °F). Above 40 °C (104 °F), overload protectioncharacteristics are slightly modified and values defined in the derating tables mustbe taken into account. The values are valid for fixed and withdrawable circuitbreakers with or without terminal shields.

For photovoltaic applications, the tests are carried out with• an ambient temperature of 20 °C (68 °F)• vertical mounting of fixed circuit breakers• terminal shields (mandatory for all DC photovoltaic circuit breakers with rated

voltage above 500 Vdc) heat sinks on top• 4 cables on the bottom connections with section and length according to IEC

60947-1 Table 9:◦ when used in array boxes, with short connection to string protections, the

cross section of the bars or cables must have a higher cross section◦ when cables have a cross section lower than the value indicated in the

table, an additional 0.9 derating coefficient must be applied

C: Inspect SwitchboardCheck that the circuit breakers are installed:

• In a clean environment without waste from assembling the equipment (suchas wiring, tools, shavings, metallic particles)

DOCA0066EN-04 111

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Commissioning

• In a properly ventilated switchboard (unobstructed ventilation grilles)

D: Check Compliance with the DiagramCheck that the circuit breakers comply with the installation diagram:

• Identification of the feeds on the front of the circuit breakers• Rating and breaking capacity (shown on the faceplate label)• Identification of the trip units (type, rating)• Presence of additional functions (motor mechanism, rotary handle, control or

indication auxiliaries, locking, sealing)• Protection settings: visually check the position of the adjustment dials on the

trip unit

E: Inspect Mechanical EquipmentVisually inspect the general state of the circuit breaker. Check the following items:

• Terminal shields and interphase barriers• Escutcheon• Trip unit• Case• Chassis

Check the equipment integrity: a circuit breaker found with a cracked case or burnmarks must be immediately taken out of service and replaced.

Check the mounting and mechanical strength:• Of circuit breakers in the switchboard, and of power connections and heat

sinks (torque: 50 N•m)• Of auxiliaries and accessories on the circuit breakers:◦ Rotary handles or motor mechanisms◦ Installation accessories (such as terminal shields, interphase barriers,

escutcheons)• Of the chassis (withdrawable circuit breaker)• Of locks, padlocks, and padlock support tabs

Photovoltaic application operating conditions involve various environmentalstresses: wide temperature variations, humidity, and electrical stresses. In order toensure performances of equipment during all the life cycle of installation, particularattention must be paid to the following:

• Enclosure integrity (double isolation IP level)• Circuit breaker operating condition and integrity◦ to evaluate if any overheating has occurred◦ to examine circuit breakers for the presence of dust, moisture, and so on.

• Visual check of electrical connections• Functional test of equipment and auxiliaries• Insulation monitoring device test• Insulation resistance test

F: Check ConnectionsCheck the tightening torque of the power connections and auxiliary circuitconnections, as described in the instruction sheets, page 7.

112 DOCA0066EN-04

CommissioningComPact NSX DC Circuit Breakers 100-1200 A and


G: Check Mechanical OperationCheck the circuit breaker mechanical operation:

• Opening, closing and resetting• Tripping with the push-to-trip button• Tripping by MN/MX control auxiliaries• Opening, closing, resetting by motor mechanism in automatic and manual

mode

H: Check Trip Units on DevicesCheck that the following are working correctly:

• OF, SD or SDE indication contacts• Wireless indication auxiliaries

I: Check Pairing of Wireless Devices with Gateway or PanelServer

Check that wireless communication with gateway or panel server is workingcorrectly for wireless indication auxiliaries, page 79. The LED is blinking greeneach time data is sent (every 8 hours, or when status changes).

J: Check CommunicationCheck that the communication via the communication network works correctly.Refer to DOCA0093EN ULP System (IEC Standard) - User Guide

K: Clean EquipmentTo avoid dust deposits that can affect the circuit breaker mechanical operation,clean the circuit breakers when performing maintenance:

• For nonmetallic parts: always use a dry cloth. Do not use cleaning products.• For metallic parts: preferably use a dry cloth. If a cleaning product must be

used, do not apply or splash the product onto non-metallic parts.This operation is especially important for the photovoltaic 1,000 Vdc applications.

DOCA0066EN-04 113


ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Maintaining the Circuit Breaker During Operation

Maintaining the Circuit Breaker During Operation

IntroductionThe electrical switchboard and all its equipment continue to age whether theyoperate or not. This aging process is due mainly to environmental influences andoperating conditions.

To help ensure that circuit breaker retains the operating and safety characteristicsspecified in the catalogue for the whole of its service life:

• Install the circuit breaker in optimum environmental and operating conditions(described in the following table).

• Have routine inspections and regular maintenance done by qualified electricalpersonnel.

Environmental and Operating ConditionsThe environmental conditions previously described, page 22, refer to harshoperating environments.

The following table describes the optimum environmental and operatingconditions:

Environmental andoperating factor

Comments

Temperature Average annual temperature outside the switchboard: < 25 °C (77 °F).

Loading Loading remains < 80% of In 24 hours a day.

Harmonics The harmonic current per phase is < 30% of In.

Humidity The relative humidity is < 70%.

Corrosive atmosphere(SO2, NH3, H2S, Cl2, NO2)

Install the circuit breaker in environmental category 3C1 or 3C2 (IEC/EN 60721-3-3).

Saline environment Install the circuit breaker in an environment free of salt mist.

Dust The dust level is low: protect the circuit breaker within a switchboardfitted with filters or IP54 ventilated.

Vibration Continuous vibration is < 0.2 g.

The maintenance programs apply to optimum environmental and operatingconditions. Outside these limits circuit breakers are subject to accelerated agingwhich can quickly lead to malfunctions.

Regular Preventive MaintenanceMaintenance recommendations for each device are intended to maintain theequipment or subassemblies in a satisfactory operational state for their usefulservice life.

There are three recommended maintenance levels.

114 DOCA0066EN-04

Maintaining the Circuit Breaker During OperationComPact NSX DC Circuit Breakers 100-1200 A and


The following table summarizes maintenance operations for the three preventivemaintenance programs:

Maintenanceprogram

Maintenance description Performed by

Basic end-usermaintenance

Visual inspection and functionaltesting, replacement ofinoperative accessories.

• Trained and qualified end-userpersonnel

• Trained and qualifiedmaintenance services providerpersonnel

• Schneider Electric field servicerepresentative

Standard end-usermaintenance

Basic end-user maintenance, plusoperational servicing andsubassembly tests.

• Trained and qualifiedmaintenance services providerpersonnel

• Schneider Electric field servicerepresentative

Manufacturermaintenance

Standard end-user maintenance,plus diagnostics and partreplacements by SchneiderElectric Services.

Schneider Electric field servicerepresentative

If all environmental conditions are more favorable than normal, maintenanceintervals can be longer than the ones in normal environmental and operatingconditions (for example, Advanced level tasks can be carried out every 3 years).

If any one of the conditions is more severe, perform maintenance more frequently.For advice, contact Schneider Electric Services.

Functions linked specifically to safety require particular maintenance intervals.NOTE: Regularly test that the remote safety commands work. For example,test at least every six months.

Maintenance Operations RequiredInspection and servicing chiefly consist of checks and inspections A, E, F, G, andH as defined for the commissioning phase, page 110.

CAUTIONHAZARD OF EQUIPMENT DAMAGE

Insulation and dielectric strength tests must only be carried out by qualifiedelectrical personnel.


Maintenance operation mainly consists of checks and inspections A, D, E, F, G, I,and J as defined for the commissioning phase, page 110.

Letter - maintenanceoperation

Maintenance operation Year 1 Year 2 Year 3 Year 4 Year 5

A Insulation and dielectric strength tests, page 111 ✔ ✔ ✔ ✔ ✔

E Inspect mechanical equipment, page 112 ✔ ✔ ✔ ✔ ✔

F Check connections, page 112 ✔ ✔ ✔ ✔ ✔

– Measurement of insulation resistance ✔ ✔ ✔ ✔ ✔

G Check mechanical operation, page 113NOTE: Check tripping by MN/MX twice a year

✔ ✔ ✔ ✔ ✔

– Replace MN/MX trip releases – – – – ✔

DOCA0066EN-04 115

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Maintaining the Circuit Breaker During Operation

Letter - maintenanceoperation

Maintenance operation Year 1 Year 2 Year 3 Year 4 Year 5

H Check trip units, page 113 ✔ ✔ ✔ ✔ ✔

J Check communication, page 113 ✔ ✔ ✔ ✔ ✔

– Check the closing time, opening time and voltage releasecharacteristics

✔ ✔ ✔ ✔ ✔

K Clean equipment, page 113 ✔ ✔ ✔ ✔ ✔

For a detailed definition of these operations, contact Schneider Electric Services.

Maintenance Following Short-Circuit TripTest a circuit breaker in severe conditions, in accordance with standardIEC/EN 60947-2, to check that it can break a short-circuit current at maximumpermissible value three times.

After a short-circuit fault, it is necessary to:• Carefully clean off any traces of black smoke (the particles may be

conducting)• Check the power connections and control wires• Operate the circuit breaker several times at no load (at least 5 times)

Replacement of Electric Auxiliary Devices in Photovoltaic CircuitBreakers

Special care is required when adding electric auxiliary devices into circuit breakersfor photovoltaic applications.

DANGERHAZARD OF ELECTRIC SHOCK• Isolate the circuit breaker upstream and downstream before removing the

front cover.• Always use a properly rated voltage sensing device to confirm that power is

off.• Replace the front cover before turning on power to this equipment.Failure to follow these instructions will result in death or serious injury.

116 DOCA0066EN-04

Responding to a TripComPact NSX DC Circuit Breakers 100-1200 A and


Responding to a Trip

Taking Precautions Before Responding to a Trip








Identifying the Cause of the TripLocal and remote indication provides information on the probable cause of a trip.

The causes are of several types:• Faults detected on the installation• Faults detected due to a malfunction• Intentional tripping

Trip Following a Fault on the InstallationThe control mechanism is positioned on , or Trip.

Indication Probable cause

SD Tripped manually by:• Push-to-trip test• Manually opening the motor mechanism• Disconnecting the circuit breaker• MN or MX trip releases

SD and SDE Tripped on electrical fault, cause unknown

Maintenance of the Equipment Following Trip on Electrical FaultThe fact that the protection has tripped does not remedy the cause of the fault onthe downstream equipment.

DOCA0066EN-04 117

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Responding to a Trip




Isolate the feed before inspecting the electrical equipment downstream of theprotection.

Perform the following tasks after a short-circuit:• Carefully clean off any traces of black smoke. The smoke particles can

conduct electricity.• Check the power connections and control wires.• Operate the circuit breaker at least five times at zero load.

Depending on the type of fault, perform maintenance inspections, page 110 on allor part of the equipment where the fault occurred:

• Minor faults: Tripped by overload protectionFollowing repairs, checks E, F, and G must be carried out.

• Serious or destructive faults:◦ Tripped due to unknown electrical fault◦ Tripped by short-circuit protection◦ Tripped by ground-fault protectionSpecial care must be taken to prevent double ground faults in photovoltaicapplications, page 108.Following repairs, checks A, D, E, G, and J must be carried out. Check thecircuit breaker that tripped, page 114 before being returned to service.NOTE: Checks, tests, and inspections must be carried out by qualifiedelectrical personnel.

If restarting is a high priority (for example, a safety installation), the defective partof the installation must be isolated and locked in order to carry out thismaintenance.

118 DOCA0066EN-04

TroubleshootingComPact NSX DC Circuit Breakers 100-1200 A and


Troubleshooting

IntroductionTroubleshooting operations are described in the following tables, with the checksor repairs to be carried out in relation to the probable causes of the malfunctionindicated. They are classified into the following events:

• Repetitive tripping• Circuit breaker fails to close (manually operated circuit breaker)• Circuit breaker fails to close (motor-operated circuit breaker)

Repetitive Tripping

Indication Probable cause Checks or repairs

SD Supply voltage to the MNundervoltage trip release is toolow or subject to significantvariations

Check the power supply for the release (forexample, a supply powering motors with high-power ratings may be unstable). If so, connectthe release to a clean or stable supply.

Supply voltage to an MX shunttrip release applied unintentionally

Check that the release connection is correctcompared to the installation diagram.

SD andSDE

Operating temperature too high Check the switchboard ventilation and thetemperature in the room.

Circuit Breaker Fails to Close (Manually Operated Circuit Breaker)The following table shows the checks or repairs to be carried out in relation to theprobable causes of the malfunction indicated.


SD MX shunt trip release energized

MN undervoltage trip release notenergized

Check that the release connection is correctcompared to the installation diagram.

OF Circuit breaker interlocked Check the installation and interlock diagram(mechanical or electrical) for both circuitbreakers.

Circuit Breaker Fails to Close (Manually Operated Circuit Breaker)The following table shows the checks or repairs to be carried out in relation to theprobable causes of the malfunction indicated.


OF Close instruction not operational Check the Auto position of the selector on thefront of the circuit breaker.

Also check:• The power supply to the motor

mechanism, the motor voltage• The voltage at the motor terminals on the

motor mechanism• The close command path

DOCA0066EN-04 119


AppendicesWhat’s in This Part

Wiring Diagrams .......................................................................................... 121

120 DOCA0066EN-04

Wiring DiagramsComPact NSX DC Circuit Breakers 100-1200 A and


Wiring DiagramsWhat’s in This Chapter

Fixed Circuit Breakers ................................................................................. 122Plug-in or Withdrawable Circuit Breakers ...................................................... 125Motor Mechanism........................................................................................ 128

DOCA0066EN-04 121

ComPact NSX DC Circuit Breakers 100-1200 A andSwitch-Disconnectors 100-630 A Wiring Diagrams

Fixed Circuit Breakers

Introduction

The diagrams are shown with circuits de-energized, all devices open, connected,and charged, and relays in normal position.

Terminals shown in red must be connected by the customer.

Remote Operation with Motor Mechanism

BPO BPF

2D

2C

4A

2A 4B

MN MX

1D

1C

1A

2B

SDE

SDE

28 48

81

1L

a (-)manu

a (+) a (+)

a (-)

or0 I

automanu

Symbol Description

MN Undervoltage trip release

MX Shunt trip release

A4 Opening order

A2 Closing order

B4, A1 Motor mechanism power supply

L1 Manual position (manu)

B2 SDE interlocking (mandatory for correct operation)

BPO Opening push button

BPF Closing push button

122 DOCA0066EN-04



Remote Operation with Communicating Motor Mechanism

+-

LH

4B

1A

a (220/240 V)

a

0 Iautomanu

NSX cord

BSCM

2D

2C

MN MX1

D

1C

a (-)

a (+)

or

Symbol Description




BSCM Breaker status control module

Indication Contacts

41

OF4

42 44

OF3

31

32 34

21

OF2

Open

22 24

OF1

11

Closed Closed

12 14

81

SDE

Fault

82 84

91

SD

Fault

92 94

121

CAF2

131

CAF1

RD

WH

134

124

101

CAO1

Open

YE

VT

102

104

RD

WH

GY

Symbol Description

OF2/OF1 Device ON/OFF indication contacts

OF4/OF3 Device ON/OFF indication contacts (NSX400-630 DC)

SDE Electrical-fault indication contact

SD Trip-indication contact

CAF2/CAF1 Early-make contact (rotary handle only)

CAO1 Early-break contact (rotary handle only)

DOCA0066EN-04 123


Color Code for Auxiliary Wiring Description

RD Red

WH White

YE Yellow

VT Violet

GY Gray

124 DOCA0066EN-04



Plug-in or Withdrawable Circuit Breakers

Introduction



Remote Operation with Motor Mechanism

BPO BPF

D2

C2

D2

C2

A4

A2

RD

BL

WH

OR

ORBL

B4

A4

A2

B4

MN MX

D1

C1

D1/C1

A1

BK

GN

WH

A1

B2

SDE

SDE

84

84

82

81

L1L1

a (-) manu

a (+)a (+)

a (-)

or0 I

automanu

Symbol Description



A4 Opening order

A2 Closing order



B2 SDE interlocking (mandatory for automatic or remote recharging)



DOCA0066EN-04 125


Remote Operation with Communicating Motor Mechanism

+-

LH

B4

B4

GN

A1

OR

A4

a

0 Iauto

manu

a (220/240 V)

NSX cord

BSCM

D2

C2

D2

C2

ORBL

MN MX

D1

C1

D1/

C1

WH

a (-)

a (+)

or

Symbol Description





Indication Contacts

41

OF4

42 44

OF3

31

32 34

21

OF2

Open

22 24

OF1

11

Closed

12 14

81

SDE

Fault

82 84

91

SD

Fault

92 94

121

CAF2

131

CAF1

Closed

RD

WH

134

124

101

CAO1

Open

YE

VT

102

104

RD

WH

GY

GN

RD

YE

VT

GN

RD

GN

RD

YE

VT

YE

VT

BK

GY

GY

GY

BK

BK

41 31 21 11 81 91

42 44 32 34 22 24 12 14 82 84 92 94

126 DOCA0066EN-04



Symbol Description

OF2/OF1 Device ON/OFF indication contacts

OF4/OF3 Device ON/OFF indication contacts (NSX400-630 DC)


SD Trip-indication contact

CAF2/CAF1 Early-make contact (rotary handle only)

CAO1 Early-break contact (rotary handle only)


RD Red

WH White

YE Yellow

BK Black

GN Green

VT Violet

GY Gray

Carriage Switches

Connected Disconnected

VT

VT

GY

GY

314

312

352

354

CE CD

YE

YE

311

351


YE Yellow

VT Violet

GY Gray

DOCA0066EN-04 127


Motor Mechanism

Introduction



After tripping initiated by the push-to-trip button or by the MN undervoltage triprelease or the MX shunt trip release, device reset can be:

• automatic• remote• manual

Following tripping due to an electrical fault (with an SDE contact), reset must becarried out manually.

Motor Mechanism with Automatic Reset

Q

BPO BPF

A4

A2

B4

A1

B2

SDE

SDE

28 48

81

L1

manu

a (+)

a (-)

0 Iauto

manu

Symbol Description

Q Circuit breaker

A4 Opening order

A2 Closing order



B2 SDE interlocking (mandatory for contact operation)




128 DOCA0066EN-04



Motor Mechanism with Remote Reset

BPO BPF Reset

A4

A2

B4

A1

B2

28 48

81

L1manu

a (+)

a (-)

0 Iauto

manu

Q

SDE

SDE

Symbol Description

Q Circuit breaker

A4 Opening order

A2 Closing order







Motor Mechanism with Manual Reset

Q

BPO BPF

A4

A2

B4

A1

B2

28 48

81

L1

manu

a (+)

a (-)

0 Iauto

manu

SDE

SDE

Symbol Description

Q Circuit breaker

A4 Opening order

A2 Closing order

DOCA0066EN-04 129


Symbol Description







Communicating Motor Mechanism

+-

LH

Q

B4

A1

a (220/240 V)

a

0 Iautomanu

NSX cord

BSCM

Symbol Description

Q Circuit breaker



130 DOCA0066EN-04


Index

Aaccessory slots .....................................................73auxiliaries contacts

control...............................................................89auxiliary contacts

operation...........................................................75auxiliary devices....................................................71

BBSCM ..................................................................83

configuration......................................................85connection.........................................................84data provided.....................................................85data sent ...........................................................85description.........................................................83installation .........................................................83setup.................................................................84

Ccarriage switches ..................................................67checks

commissioning................................................. 110circuit breaker

close .................................................................27locking ..............................................................31open .................................................................27reset .................................................................27testing......................................................... 20, 29

circuit breakersaccessory slots ..................................................73commissioning................................................. 110functions ........................................................... 11maintenance.................................................... 114motor operated ..................................................47operation......................................................... 109plug-in...............................................................58

close ....................................................................27motor mechanism ..............................................50rotary handle .....................................................36

connectionplug-in circuit breakers .......................................60withdrawable circuit breakers ..............................65

control contacts.....................................................89

Ddisconnecting plug-in circuit breakers .....................59disconnecting withdrawable circuit breakers ............63

Eelectrical accessories ............................................56

Iindication contacts

accessory slots ..................................................73operation...........................................................75

Llocking

circuit breaker ....................................................31

Oopen.....................................................................27

Pplug-in circuit breakers...........................................58

connection.........................................................60direct contact protection .....................................61disconnection ....................................................59

Rremoving withdrawable circuit breakers...................64reset.....................................................................27

Ssealing accessories ...............................................32servicing

at installation .....................................................19setting ..................................................................21

trip unit ..............................................................21

Ttesting

circuit breaker .............................................. 20, 29

Wwireless indication auxiliary

operation...........................................................76withdrawable circuit breakers

connection.........................................................65disconnection ....................................................63removal .............................................................64

DOCA0066EN-04 131

Schneider Electric35 rue Joseph Monier92500 Rueil MalmaisonFrance

+ 33 (0) 1 41 29 70 00

www.se.com

As standards, specifications, and design change from time to time,please ask for confirmation of the information given in this publication.

© 2021 – Schneider Electric. All rights reserved.

DOCA0066EN-04

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