Circuit breaker handle interlock

Details Circuit breaker handle interlock Circuit breaker handle interlock

1994-08-18

2000-10-24

Friedhofer, Michael

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 926

Patent

active

06137069&

ABSTRACT:
Multi-pole circuit breakers are joined together to form a common assembly. The individual poles are in the form of compact circuit breakers having a pair of separable contacts controlled by a single externally-accessible operating handle. The individual circuit breakers are riveted together and are keyed such that the contacts open and close in unison. The individual handles are interlocked together by means of a unitary plastic handle tie.

REFERENCES:
patent: 3183320 (1965-05-01), Darlow
patent: 3213326 (1965-10-01), Gryctko
patent: 4166988 (1979-09-01), Ciarcia
patent: 4906958 (1990-03-01), Adamson
patent: 4980525 (1990-12-01), Kakiasako
patent: 5172087 (1992-12-01), Castonguay

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