Push button actuated overload protective circuit breaker

Details Push button actuated overload protective circuit breaker Push button actuated overload protective circuit breaker

H - Electricity

01

H

306/183

H01H 73/30 (2006.01)

Patent

CA 1251502

ABSTRACT OF THE DISCLOSURE In an overload protective circuit breaker, a fixed con- tact element and a bimetal contact element are arranged in parallel beside each other. When a current overload occurs and the bimetal junction is heated, a movable contact post on a snap disc mounted on the bimetal contact element moves away from a fixed contact post on the fixed contact element, there- by breaking circuit, and an insulating wall piece of a slider body will be moved automatically into the gap between the two contact posts so as to break circuit and cut off an arc form- ing between the two moving-apart posts and accelerating cool- ing of the bimetal junction. Returning the circuit breaker to circuit-making position requires depression of a push button which is preferably a leg of an L-shaped switch member, the other L-leg being constituted by the slider body.

515230

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