Specifications

22
COMPACT
®
NS circuit breaker
COMPACT
®
NS circuit breaker: functions and characteristics
Accessories
Internal accessories comply with requirements of Underwriters Laboratories Inc.
UL 489 and Canadian Standard Association C22.2 No.5.1 Standards. All internal
accessories are Listed for fixed installation per UL file E103955 and Certified under
CSA file LR 69561.
NSF150/250 NSJ400/600
E29147
Location
Connections
Each electrical accessory is fitted with numbered terminal blocks for wires with the
following maximum size:
■ #16 AWG (1.5 mm
2
) for auxiliary switches, undervoltage and shunt trip or
undervoltage trip;
■ #14 AWG (2.5 mm
2
) for the motor operator.
Auxiliary circuits exit the device
through a knock-out in the accessory
front cover.
E18585
E36969
E23890
Fixed mounting Plug-in and drawout mounting
Auxiliary switch
(OF1)
Shunt trip (MX)
or undervoltage
trip (MN)
Auxiliary switch
(OF1)
Shunt trip (MX)
or undervoltage
trip (MN)
Overcurrent
trip switch (SDE)
Auxiliary switch
(OF2)
Alarm switch
(SD)
Alarm switch
(SD)
Auxiliary switch
(OF2)
Overcurrent
trip switch (SDE)
Auxiliary switch
(OF3)