Switches and Switch Accessories

Auxiliary Switch (OF)

Auxiliary Switch (OF) with Four Contacts for MasterPacT NW Circuit Breaker

MasterPacT NT Aux Switch (OF) with One Contact

The rotary-type auxiliary switches are directly driven by the trip mechanism when the minimum isolation distance between the main circuit breaker contact is reached.

Circuit Breaker Type			NT	NW
Supplied as Standard (Form C)			4	4
Maximum Number of Contacts			4	12
Breaking Capacity at a Power Factor (p.f.) of 0.3	Standard (100 mA/24 V minimum load)
	Vac	240/380	6:00 AM	10:00 AM
		480	6:00 AM	10:00 AM
		600/690	6:00 AM	6:00 AM
	Vdc	24/48	2.5 A	10:00 AM
		240	0.5 A	10:00 AM
		380	0.3 A	3:00 AM
	Low-Level (1 mA/4 V minimum load with a maximum current and voltage of 100 mA/10 V.
	NOTE: If the maximum voltage and current is exceeded, the low-level function of the switch will be lost but the switch will continue to function as a standard switch with the following specifications.
	Vac	24/48 Vac	5:00 AM	6:00 AM
		240 Vac	5:00 AM	6:00 AM
		380 Vac	5:00 AM	3:00 AM
	Vdc	24/48 Vdc	5/2.5 A	6:00 AM
		125 Vdc	0.5 A	6:00 AM
		250 Vdc	0.3 A	3:00 AM

Overcurrent Trip Switch (SDE)

Circuit breaker tripping due to a fault is signalled by a red mechanical fault indicator (reset) and one overcurrent trip switch (SDE).

Following tripping, the mechanical indicator must be reset before the circuit breaker may be closed. An additional overcurrent trip switch (SDE2) is supplied as an option and is not compatible with the remote reset (RES).

Overcurrent Trip Switch Characteristics

Supplied as Standard	1a/1b Form C
Maximum Number of Contacts	2
Breaking Capacity at a Power Factor (p.f.) of 0.3	Standard: 100 mA/24 V Minimum Load		Low-Level: 2 mA/15 V Minimum Load
	240/380 Vac	5 A	24/48 Vac	3 A
	480 Vac	5 A	240 Vac	3 A
	600/690 Vac	3 A	380 Vac	3 A
	24/48 Vdc	3 A	24/48 Vdc	3 A
	240 Vdc	0.3 A	125 Vdc	0.3 A
	380 Vdc	0.15 A	250 Vdc	0.15 A

Connected/Closed Switch (EF)

Connected/Closed Switch (EF) NW only

This switch combines the “device connected” and “device closed” information to produce “circuit closed” information. The connected/closed switch (EF) is supplied as an option and must be used with an additional auxiliary switch (OF) and fits into its connector (it is not available for ring terminals).

Connected/Closed Switch Characteristics

Circuit Breaker Type		NW (not available for NT)
Maximum Number of Contacts	8a/8b Form C
Breaking Capacity at a Power Factor (p.f.) of 0.3	Standard: 100 mA/24 V Minimum Load		Low-Level: 2 mA/15 V Minimum Load
	240/380 Vac	6:00 AM	24/48 Vac	5:00 AM
	480 Vac	6:00 AM	240 Vac	5:00 AM
	600/690 Vac	6:00 AM	380 Vac	5:00 AM
	24/48 Vdc	2.5 A	24/48 Vdc	2.5 A
	125 Vdc	0.8 A	125 Vdc	0.8 A
	250 Vdc	0.3 A	250 Vdc	0.3 A

Cradle Position Switch

Cradle Position Switch (CE, CD, CT)

Three series of optional auxiliary switches are available for the cradle:

Cradle position switches to indicate the connected position (CE).
Cradle position switches to indicate the disconnected position (CD). This position is indicated when the required clearance for isolation of the power and auxiliary circuits is reached.
Cradle position switches to indicate the test position (CT). In this position, the power circuits are disconnected and the auxiliary circuits are connected.

Cradle Position Switch Characteristics

Circuit Breaker Type

Possible Ring-Terminal Combinations

Maximum Push-In Switches with Standard Actuators

1a, 1b

1a, 2b

With Additional Actuators

1a, 2b

2a, 1b

1a, 2b

Breaking Capacity at a Power Factor (p.f) of 0.3

Standard (100 mA/24 V minimum load)

Vac

240

8 A

Additional Actuators for Cradle Position Switches on MasterPacT NW Circuit Breakers A set of additional actuators may be installed on the cradle to change or add the functions of the cradle position switches. Each standard actuator can be replaced by any other actuator to change the function of the cradle position switch.

380

8 A

480

8 A

600/690

6 A

Vdc

24/48

2.5 A

125

0.8 A

250

0.3 A

Low-Level (2 mA/15 V minimum load)

Vac

24/48

5 A

240

5 A

380

5 A

Vdc

24/48

2.5 A

125

0.8 A

250

0.3 A

Cradle Position Switch Actuators


Actuator for up to Three CE Switches (standard)	Actuator for up to Three CD Switches (standard)	Actuator for up to Three CT Switches (standard)