Current limiting circuit breaker contact arm configuration

Details Current limiting circuit breaker contact arm configuration Current limiting circuit breaker contact arm configuration

1989-11-13

1990-11-13

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 16, 335201, H01H 7500

Patent

active

049704818

ABSTRACT:
A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker fixed and movable contacts become separated upon intense overcurrent conditions. The fixed contact is arranged on a fixed contact arm that includes an arc runner for rapidly directing the arc into the arc chute.

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patent: 4789848 (1988-12-01), Castonguay et al.
patent: 4806893 (1989-02-01), Castonguay et al.

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