Compact three-pole circuit breaker

Details Compact three-pole circuit breaker Compact three-pole circuit breaker

H - Electricity

01

H

306/284

H01H 71/24 (2006.01)

Patent

CA 1116219

COMPACT THREE-POLE CIRCUIT BREAKER ABSTRACT A compact three-pole circuit breaker is modularly constructed utilizing two identical operating mechanisms in controllably arti- culating three movable contact arms. The operating mechanisms are ganged together for concerted manual operation by an external handle tie and internal means intercoupling the three movable con- tact arms and the operating mechanisms. Trip units, one in each breaker pole, independently act on an internal common trip bar to simultaneously trip the two operating mechanisms and thereby effect concerted opening movement of the contact arms in quick break fashion under the urgence of mechanism springs and assisting helper springs.

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