Manually operable circuit breaker

Details Manually operable circuit breaker Manually operable circuit breaker

1990-04-30

1992-12-01

Pellinen, A. D.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 920

Patent

active

051681374

ABSTRACT:
A manually operable circuit breaker having coupling terminals and a visible isolating gap which can be established only when the protective circuit breaker is open. The isolating gap is provided by an isolating module which is mountable on coupling terminals of the circuit breaker. The isolating module contains a removable isolating unit. The isolating unit can be removed only when the protective circuit breaker is open. In this way, the circuit breaker is provided with a visible isolating gap only when required.

REFERENCES:
patent: 2883491 (1959-04-01), Edmunds
patent: 4786885 (1988-11-01), Morris et al.
patent: 4794356 (1988-12-01), Yu et al.
patent: 4858056 (1989-08-01), Russell
patent: 4884048 (1989-11-01), Castonguay et al.

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