Circuit breaker with improved latch mechanism

Details Circuit breaker with improved latch mechanism Circuit breaker with improved latch mechanism

1976-10-06

1978-10-31

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 22, H01H 7706

Patent

active

041237340

ABSTRACT:
A three pole molded case circuit breaker including a push-to-trip button, a flux transfer shunt trip mechanism, an undervoltage trip mechanism, and an improved latch mechanism. The latch mechanism comprises a metal trip bar covered with insulating tubing and adapted for translational movement to actuate the latch mechanism and trip the contacts. Contact carrier movement during the tripping operation serves to reset the latch mechanism.

REFERENCES:
patent: 2666824 (1954-01-01), Dorfman
patent: 3329912 (1967-07-01), Brackett
patent: 3353127 (1967-11-01), Frances et al.

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