Circuit interrupter with test actuator for ground fault and arc

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

1998-05-12

1999-11-09

Sherry, Michael J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361102, 324424, H02H 300

Patent

active

059825936

ABSTRACT:
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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patent: 5260676 (1993-11-01), Patel et al.
patent: 5293522 (1994-03-01), Fello et al.
patent: 5307230 (1994-04-01), MacKenzie
patent: 5459630 (1995-10-01), MacKenzie et al.
patent: 5519561 (1996-05-01), Mrenna et al.
patent: 5691869 (1997-11-01), Engel et al.

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