Molded case circuit breaker multi-pole crossbar assembly

Details Molded case circuit breaker multi-pole crossbar assembly Molded case circuit breaker multi-pole crossbar assembly

1991-01-22

1993-04-06

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335 21, 335 10, H01H 900

Patent

active

052007251

ABSTRACT:
A modular crossbar arrangement for molded case circuit breakers allows a plurality of contact arm assemblies to be interconnected from a single modular unit. To provide increased acceleration to the movable contact arms a contact arm accelerator lever interfaces with the contact arm and crossbar assembly. To promote further acceleration of the movable contact arms to their closed positions, the movable contact arms in a multi-pole circuit breaker are staggered with respect to their rotational alignment within each pole on the crossbar assembly.

REFERENCES:
patent: 4149129 (1979-04-01), Andersen et al.
patent: 4835842 (1989-06-01), Castonguay et al.

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