Operating the Circuit Breakers

Circuit Breaker Operating Control Accessories for General-Purpose Applications

The following table shows the operating control accessories compatible with the ComPacT NSX DC circuit breakers for general-purpose applications. For more information, refer to LVPED221002EN ComPacT NSX, ComPacT INS/INV, MasterPacT NW DC - DC PV Catalog.

Operating Control Accessory	NSX100 DC			NSX160 DC			NSX250 DC	NSX400 DC	NSX630 DC	NSX1200 DC
Operating Control Accessory	1P	2P	3P/4P	1P	2P	3P/4P	3P/4P	3P/4P	3P/4P	2P
Toggle handle	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
Rotary handle	–	–	✔	–	–	✔	✔	✔	✔	✔
Motor mechanism	–	–	✔	–	–	✔	✔	✔	✔	✔
Communicating motor mechanism	–	–	✔	–	–	✔	✔	✔	✔	✔

Circuit Breaker Operating Control Accessories for Photovoltaic and Marine Applications

The following table shows the operating control accessories compatible with the ComPacT NSX DC PV and DC EP circuit breakers for photovoltaic and marine applications. For more information, refer to LVPED221002EN ComPacT NSX, ComPacT INS/INV, MasterPacT NW DC - DC PV Catalog.

Operating Control Accessory	NSX80-200 DC PV	NSX400-500 DC PV	NSX100-250 DC EP	NSX250-500 DC EP
Operating Control Accessory	4P	4P	4P	4P
Toggle handle	✔	✔	✔	✔
Rotary handle	✔	✔	✔	✔
Motor mechanism	✔	✔	-	-
Communicating motor mechanism	✔	✔	-	-

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), the push-to-trip button, or the USB maintenance interface.		I (ON): Circuit breaker closed (in Auto or Manu mode). O (OFF): Circuit breaker open or tripped (in Auto or Manu mode).

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.

Remote Electrical Stop Command

The remote electrical stop command can be given by electrical control auxiliaries regardless 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 relevant topic.

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