Draw-out molded case circuit breaker

Details Draw-out molded case circuit breaker Draw-out molded case circuit breaker

1993-04-06

1994-08-02

Tolin, Gerald P.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 50C, 361609, H02B 104

Patent

active

053348087

ABSTRACT:
A circuit breaker assembly is equipped with a pre-tripping device comprising a fixed cam securedly united to a connecting base, which cooperates with a rocker and a transmission lever when the circuit breaker is drawn-in and drawn-out from the connecting base. The profile of the fixed cam is chosen to actuate the transmission lever and impose tripping of the circuit breaker, during draw-in or draw-out travel, whereas the transmission lever is in the inactive position after the circuit breaker is drawn-in or drawn-out, in which the latter can be opened or closed normally.

REFERENCES:
patent: 2805294 (1957-09-01), Edmunds
patent: 3343042 (1967-09-01), Cellerini et al.
patent: 4574170 (1986-03-01), Abe et al.
patent: 4761521 (1988-08-01), Beck et al.
patent: 4808777 (1989-02-01), Kindberg
patent: 5172300 (1992-12-01), Morby et al.

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