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6.1.17 Shunt-Trip Line Circuit Breaker
A shunt-trip line circuit breaker provides a 12- or 24-DC volt solenoid within the line circuit breaker case that can energize the
trip mechanism. This feature allows the circuit breaker to be tripped by the common fault (32A). Connection requires a shunt-
trip wiring kit and a dry contact kit. See Figure 93 and Figure 94.
The optional common fault relay shown in Figure 94 as DCB2 has contacts rated at 10 amps at 28 VDC or 120 VAC and is used
to trigger the shunt-trip line circuit breaker kit.
Figure 93 Shunt-Trip Wiring (Standard)
Figure 94 Shunt-Trip Relay Kit and Line Circuit Breaker Wiring (Shown with Common Fault/Failure Relay Kit)
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