Compact three-pole circuit breaker

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

1978-04-19

1979-09-04

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

200 50C, 337 50, H01H 7306, H01H 7102

Patent

active

041669886

ABSTRACT:
A compact three-pole circuit breaker is modularly constructed utilizing two identical operating mechanisms in controllably articulating 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 contact 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.

REFERENCES:
patent: 3069517 (1962-12-01), Cole
patent: 3353127 (1967-11-01), Francis et al.
patent: 3369202 (1968-02-01), Gryctko
patent: 3414850 (1968-12-01), Cooper
patent: 3422381 (1969-01-01), Toth

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