Interlock for handles of adjacent circuit breakers

Details Interlock for handles of adjacent circuit breakers Interlock for handles of adjacent circuit breakers

1976-02-20

1977-08-30

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 926

Patent

active

040456285

ABSTRACT:
A mechanical interlock for circuit breakers using a depressible, push-button operating handle, wherein two circuit breakers are paired and at least two circuit breaker pairs are adjacent: the interlock comprises a molding placed on top of the casings of the circuit breakers and shiftable by depression of the handles of one circuit breaker pair to a position to block depression of the handles of the other circuit breaker pair; with a row of circuit breaker pairs, shifting of one interlock shifts all other interlocks for all other circuit breaker pairs.

REFERENCES:
patent: 3319020 (1967-05-01), Shaffer
patent: 3801758 (1974-04-01), Shand et al.

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