Electrical Auxiliary Device Summary

Electrical Auxiliary Devices

The following table shows the electrical auxiliary devices that can be added to the ComPact NSX circuit breakers. For more information, refer to LVPED217032EN, ComPact NSX & NSXm Catalogue.

Electrical auxiliary device	NSX100			NSX160			NSX250		NSX400	NSX630
Electrical auxiliary device	1P	2P	3P/4P	1P	2P	3P/4P	1P	3P/4P	3P/4P	3P/4P
OF or SD auxiliary contact	–	✔	✔	–	✔	✔	–	✔	✔	✔
SDE auxiliary contact	–	–	✔	–	–	✔	–	✔	✔	✔
SDx module	–	–	✔	–	–	✔	–	✔	✔	✔
SDTAM module	–	–	✔	–	–	✔	–	✔	✔	✔
Wireless indication auxiliary	–	✔	✔	–	✔	✔	–	✔	✔	✔
MN undervoltage trip release	–	✔	✔	–	✔	✔	–	✔	✔	✔
MX shunt trip release	–	✔	✔	–	✔	✔	–	✔	✔	✔
BSCM breaker status control mode	–	–	✔	–	–	✔	–	✔	✔	✔
NSX cord	–	–	✔	–	–	✔	–	✔	✔	✔
24 Vdc power supply connector⁽¹⁾	–	–	✔	–	–	✔	–	✔	✔	✔
(1) with MicroLogic 5, 6, and 7 trip units

Electrical Auxiliaries Installation Demonstration Video

To access a demonstration video about the installation of electrical auxiliary devices in a ComPact NSX100-250 3P circuit breaker, click the following link: https://youtu.be/zDqRyZHBWr4, copy and paste the link to your Web browser, or scan the QR code.

Slots for Electrical Auxiliary Devices on ComPact NSX100/160 2P Circuit Breakers

The following table shows the possible slots for electrical auxiliary devices mounted in the case. Only one auxiliary device can be installed per slot. For more information, refer to LVPED217032EN, ComPact NSX & NSXm Catalogue.

Name	Slot
Name	A	B	C
OF1 (wired or wireless)	✔	–	–
SD (wired or wireless)	–	✔	–
MN	–	–	✔
MX	–	–	✔

Slots for Electrical Auxiliary Devices on ComPact NSX100-250 3P/4P Circuit Breakers

Name	Slot						Comments
Name	A	B	C	D	E	F	Comments
Standard remote indication and control auxiliaries
OF1 (wired or wireless)	✔	–	–	–	–	–	For all trip unit types and control types (toggle handle, rotary handle, or motor mechanism).
OF2 (wired or wireless)	–	–	–	✔	–	–
SD (wired or wireless)	–	✔	–	–	–	–
SDE (wired or wireless)	–	–	✔	–	–	–
SDV (wired only)	–	–	–	–	–	✔	Indication contact in VigiPacT Add-on
MN	–	–	–	–	✔	–	For all trip unit types and control types (toggle handle, rotary handle, or motor mechanism).
MX	–	–	–	–	✔	–
Remote indication on communication network
BSCM	–	–	✔	✔	–	–	For connection of the BSCM module to the communication network.
NSX cord	–	✔	–	–	–	–
NSX cord	–	–	–	✔	–	–	For connection of the MicroLogic 5, 6, and 7 trip units to the communication network when no BSCM module is installed.
Specific remote indication with MicroLogic trip units
SDx	✔	–	–	–	✔	–	Including SDV for MicroLogic 4 and 7 trip units.
SDTAM	✔	–	–	–	✔	–	Only for circuit breakers with a MicroLogic 2 M or 6 E-M trip unit designed to protect motors.
24 Vdc power supply connector	–	–	–	✔	–	–	For connection of external power supply to MicroLogic 5, 6, and 7 trip units.

NOTE: It is not possible to install all the accessories at the same time on one trip unit. For example, the SDx module cannot be installed at the same time as an MN or MX release and the OF1 contact.

Slots for Electrical Auxiliary Devices on ComPact NSX400-630 3P/4P Circuit Breakers

ComPact NSX400-630 circuit breakers are exclusively equipped with MicroLogic trip units.

The following table shows the possible slots for the electrical auxiliary devices mounted in the case. For more information, refer to LVPED217032EN, ComPact NSX & NSXm Catalogue.

Name	Slot									Comments
Name	A	B	C	D	E	F	G	H	I	Comments
Standard remote indication and control auxiliaries
OF1 (wired or wireless)	–	–	✔	–	–	–	–	–	–	For all trip unit types and control types (toggle handle, rotary handle, or motor mechanism).
OF2 (wired or wireless)	–	✔	–	–	–	–	–	–	–
OF3 (wired or wireless)	✔	–	–	–	–	–	–	–	–
OF4 (wired or wireless)	–	–	–	–	–	–	✔	–	–
SD (wired or wireless)	–	–	–	–	–	–	–	–	✔
SDE (wired or wireless)	–	–	–	–	–	–	–	✔	–
SDV (wired only)	–	–	–	–	–	✔	–	–	–	Indication contact in VigiPacT Add-on
MN	–	–	–	–	✔	–	–	–	–	For all trip unit types and control types (toggle handle, rotary handle, or motor mechanism).
MX	–	–	–	–	✔	–	–	–	–
Remote indication on communication network
BSCM	–	–	–	–	–	–	✔	✔	–	For connection of the BSCM module to the communication network.
NSX cord	–	–	–	–	–	–	✔	–	–
NSX cord	–	–	–	–	–	–	–	–	✔	For connection of the MicroLogic 5, 6, and 7 trip units to the communication network when no BSCM module is installed.
Specific remote indication with MicroLogic trip units
SDx	–	–	–	✔	✔	–	–	–	–	Including SDV for MicroLogic 4 and 7 trip units.
SDTAM	–	–	–	✔	✔	–	–	–	–	Only for circuit breakers with a MicroLogic 2 M or 6 E-M trip unit designed to protect motors.
24 Vdc power supply connector	–	–	–	–	–	–	✔	–	–	For connection of external power supply to the MicroLogic 5, 6, and 7 trip units.

NOTE: It is not possible to install all the accessories at the same time on one trip unit. For example, the SDx remote indication option cannot be installed at the same time as an MN or MX release.

Operation of the Indication Contacts

The 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	PT⁽¹⁾	Trip unit⁽²⁾
			MN/MX	PT⁽¹⁾	L	S or So	I	R	G
Name		Position of indication contacts
OF		✔	–	–	–	–	–	–	–	–
SD		–	✔	✔	✔	✔	✔	✔	✔	–
SDE		–	–	–	✔	✔	✔	✔	✔	–
SDV		–	–	–	–	–	–	✔	–	–
SDx outputs⁽³⁾
SD2	SDT	–	–	–	✔	–	–	–	–	–
SD4	PAL	–	–	–	✔	–	–	–	–	–
	SDG	–	–	–	–	–	–	–	✔	–
	SDV	–	–	–	–	–	–	✔	–	–
SDTAM outputs
SD2	Early make/break SDT	–	–	–	✔✔	–	–	–	–	–
SD4	Early make/break SDT	Contactor control
✔: Contact closed, ✔✔: Early-make output (400 ms)
(1) PT: Push-to-trip (2) L: Long-time protection S or So: Short-time protection I: Instantaneous protection R: VigiPacT Add-on protection (earth-leakage) G: Ground-fault protection (3) SDx output assignment can be customized for MicroLogic 5, 6, and 7 trip units, by using EcoStruxure Power Commission software.

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

The state of the NO contact is open:

for OF contacts when the circuit breaker is in the O (OFF) position.
for SD, SDE, and SDV contacts when the associated function is not active.

Sequence chart of the OF contacts relative to the main contacts

A Main contacts

B Position of OF changeover contacts

Operation of the Wireless Indication Auxiliaries

The wireless indication auxiliary provides the same information as a standard wired auxiliary contact in OF, SD, or SDE positions. The information is sent remotely to a gateway or Panel Server.

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