Molded case circuit breaker modular contact arm arrangement

Details Molded case circuit breaker modular contact arm arrangement Molded case circuit breaker modular contact arm arrangement

1993-01-25

1994-06-07

Pellinen, A. D.

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

200144R, 200147R, H01H 3302

Patent

active

053191668

ABSTRACT:
A molded case circuit breaker movable contact arm electrically connects with the circuit breaker load terminal by means of parallel electric paths provided by a looped braid conductor. The contact arm support includes a single support leg for pivotally retaining the movable contact arm on one side. The opposite side of the contact arm is supported on the operating mechanism crossbar. Contact arms of increasing thickness are used to accommodate the higher transport currents required with circuit breakers of increased ampere ratings.

REFERENCES:
patent: 2048114 (1936-07-01), Gano et al.
patent: 3023292 (1962-02-01), Stewart
patent: 3033964 (1962-05-01), Titus
patent: 3073936 (1963-01-01), Baird
patent: 4375021 (1983-02-01), Pardini et al.
patent: 4733033 (1988-03-01), Morris et al.
patent: 4733211 (1988-03-01), Castonguay et al.
patent: 4736174 (1988-04-01), Castonguay et al.
patent: 4741002 (1988-04-01), Dougherty
patent: 4757294 (1988-07-01), Todaro et al.
patent: 4931603 (1990-06-01), Castonguay et al.
Ser. No. 07/764,287 entitled "Molded Case Circuit Breaker Movable Contact Arm Arrangement", filed Sep. 23, 1991 Bellino et al. (Docket 41PR-6938).

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