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

1992-12-18

1993-11-16

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335167, 335172, H01H 7500

Patent

active

052627446

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: 4166988 (1979-09-01), Ciarcia et al.
patent: 4347488 (1982-08-01), Mune et al.

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