Molded case circuit breaker operating mechanism assembly

Details Molded case circuit breaker operating mechanism assembly Molded case circuit breaker operating mechanism assembly

1990-11-30

1991-12-03

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335 21, 335190, H01H 900

Patent

active

050703617

ABSTRACT:
An operating mechanism assembly used within molded case circuit breakers employing electronic trip units interconnects the operating mechanism with the circuit breaker movable contact arms by means of a slotted-cam arrangement. The slotted-cam optimizes the manual closing of the movable contact arms by controllably over-centering the circuit breaker operating mechanism springs.

REFERENCES:
patent: 4713638 (1987-12-01), Grunert et al.
patent: 4782583 (1988-11-01), Castonguay et al.
patent: 4945443 (1990-07-01), DeBiasi et al.
patent: 4983939 (1991-01-01), Shea et al.
patent: 5027092 (1991-06-01), Castonguay et al.

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