Three phase circuit breaker

Details Three phase circuit breaker Three phase circuit breaker

1977-04-11

1978-08-29

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 66, H01H 7116

Patent

active

041107195

ABSTRACT:
The disclosure relates to a three phase aircraft circuit breaker in which a single push-pull manual operator controls a single mechanical latch for the three poles. Slidable contact carriers in each of the phases are controlled by thermally actuated latches in each of the poles which are released upon the occurrence of an electrical overload by a current responsive bimetal in each pole. An ambient temperature responsive bimetal is provided in each phase. A common trip mechanism effects opening of all poles of the circuit breaker upon the occurrence of an overload in any phase.

REFERENCES:
patent: 2813168 (1957-11-01), Mascioli et al.
patent: 3211862 (1965-10-01), Ellenberger
patent: 3990028 (1976-11-01), Aust et al.
patent: 4024487 (1977-05-01), Krasser et al.

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