Circuit interrupter with test actuator for ground fault and...

Details Circuit interrupter with test actuator for ground fault and... Circuit interrupter with test actuator for ground fault and...

H - Electricity

01

H

H01H 83/04 (2006.01) H02H 1/00 (2006.01) H02H 3/33 (2006.01)

Patent

CA 2271896

A miniature circuit breaker incorporating ground fault protection and arc fault protection includes a test mechanism including a ground fault test circuit for testing a ground fault detector trip mechanism, and an arc fault test circuit for testing an arc fault detector trip mechanism. A state machine circuit automatically controls the test mechanism to sequentially test both of the ground fault and arc fault detector trip mechanisms. A test push button is interconnected with the state machine circuit and, when pressed, initiates sequential testing of both of the ground fault and arc fault trip mechanisms.

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