Electric circuit breaker

H - Electricity – 01 – H

Patent

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306/163

H01H 71/16 (2006.01) H01H 71/10 (2006.01) H01H 71/74 (2006.01)

Patent

CA 1036646

ABSTRACT OF THE DISCLOSURE A circuit breaker having a simple overload triggering mechanism of a thermostat element held at one end in a mounting member which is urged against a threaded rod by a spring. The other end of the thermostat element is notched to receive and engage a trip arm which is released to cause opening of the breaker contacts by bending of the thermostat element under overload current conditions. When the trip arm is released it causes the mounting member to pivot. The mounting member is adapted to engage the mounting member of an adjacent circuit breaker when the two circuit breakers are mounted in side-by- side relationship. When either circuit breaker is tripped, pivoting of its mounting member pivots the other mounting member causing that circuit breaker to trip also.

228503

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