Product Description

Auxiliary contact

Loaded on the left side of a miniature circuit breaker to indicate the On/Off state of the circuit breaker; 3 can be loaded at most.

Picture	Density	Parts number	Support products series
	9mm	OF	NDM1-63  NDM1T-63  NDM1F-63   NDM1-125  NDB1C-125  NDM1L-32  NDM1L-50  NDM1L-100
	9mm	OF2	NDB2-63  NDB2Z-63  NDB2ZB-40  NDB2T-63  NDB2LE-63

Note: After assembled with the circuit breaker, terminals 11 and 14 are connected at the time of closing. At the time of opening, terminals 11 and 12 are connected. at most, 3 pcs OF or OF2 can be assembled. 

Alarm contact

Loaded on the left side of a miniature circuit breaker to indicate the fault trip state of the circuit breaker; 3 can be loaded at most 

Picture	Density	Parts number	Support product series
	9mm	SD	NDM1-63  NDM1T-63  NDM1F-63   NDM1-125  NDB1C-125  NDM1L-32  NDM1L-50  NDM1L-100
	9mm	SD2	NDB2-63  NDB2Z-63  NDB2ZB-40  NDB2T-63  NDB2LE-63

Note: After assembled with the circuit breaker, terminals 91 and 92 are connected at the time of closing. At the time of fault opening, 91 and 94 are connected. At the time of manual opening, 91 and 92 are connected, but 91 and 94 are not. at most, 3 pcs SD or SD2 can be assembled. 

Shunt tripper

Loaded on the left side of a miniature circuit breaker to indicate the fault tripping state and remote breaking control of the circuit breaker.

Picture	Density	Parts number	Support product series
	18mm	MX+OF	NDM1-63  NDM1T-63  NDM1-125  NDB1C-125
	18mm	MX+OF2	NDB2-63  NDB2Z-63   NDB2ZB-40  NDB2T-63  NDB2LE-63

Note: The changeover contact is an active contact and is not allowed to connect other weak current modules as a passive contact. 

Overvoltage and Under-voltage Tripper 

Installed on the left side of miniature circuit breaker to provide single-phase overvoltage, under-voltage, overvoltage and under-voltage protection. 

Picture	Density	Parts number	Support product series
	18mm	NGQ1A	NDM1-63  NDM1-125  NDM1T-63
	18mm	NGQ2A	NDB2-63  NDB2Z-63   NDB2ZB-40  NDB2T-63  NDB2LE-63

Note: The user may only choose overvoltage tripper or under-voltage tripper as needed. Each circuit breaker can only be assembled with one under-voltage tripper to provide single-circuit protection.