Contact pop responsive latch release for circuit breakers

Details Contact pop responsive latch release for circuit breakers Contact pop responsive latch release for circuit breakers

1981-01-16

1982-08-24

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335175, 335195, H01H 7500, H01H 7512, H01H 7700

Patent

active

043463584

ABSTRACT:
A rearward extension of a circuit breaker pivotally mounted movable contact arm is positioned, with the arm in its closed position, to engage a trip bar and trip the breaker in response to popping movement of the arm away from its closed position as induced by the flow of high level fault current. The trip bar is configured such that the circuit breaker is not tripped incident to manual operation of the movable arm between its open and closed positions.

REFERENCES:
patent: 4255732 (1981-03-01), Wafer et al.
patent: 4259651 (1981-03-01), Yamat

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