Circuit breaker mechanical interlock

Details Circuit breaker mechanical interlock Circuit breaker mechanical interlock

1989-03-02

1990-02-20

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 926

Patent

active

049028596

ABSTRACT:
A mechanical interlock for interlocking two circuit breakers such that only one of the circuit breakers is ON at a given time. The interlock is also configured such that it permits both circuit breakers to be OFF at the same time. The interlock includes a pivoting rocker arm and a linkage assembly associated with each breaker, wherein the rocker arm and linkage assemblies cooperate to transfer motion between the tie bars of the circuit breakers.

REFERENCES:
patent: 1535873 (1925-04-01), Stevens
patent: 3778633 (1973-12-01), DeVisser et al.
patent: 4295053 (1981-10-01), Kovatch et al.
patent: 4484164 (1984-11-01), McClellan et al.
patent: 4827089 (1989-05-01), Morris et al.

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