Switchgear including a circuit breaker having a trip unit with an interface to a number of arc fault sensors

摘要

Switchgear (2) includes a plurality of bus bars (4); and a plurality of circuit breakers (6). At least one of the circuit breakers includes a trip unit (8). The trip unit includes an interface (10) to at least one arc fault sensor (12) operatively associated with the switchgear. The trip unit is structured to trip at least one of a corresponding one of the at least one of the circuit breakers and a shorting switch (14) responsive to current flowing through the corresponding one of the at least one of the circuit breakers and an arc fault signal (16) from the at least one arc fault sensor.