Thermally adjustable circuit breaker

Details Thermally adjustable circuit breaker Thermally adjustable circuit breaker

1976-02-26

1977-06-14

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337129, H01H 7114

Patent

active

040300609

ABSTRACT:
A multi-pole circuit breaker characterized by a circuit breaker structure including a releasable arm for opening a circuit through the breaker, a bimetal element for each pole which is responsive to an overload current condition to effect release of the releasable arm, a latch bracket and a trip bar coaxially mounted and having an adjustment screw to vary the position of the trip bar in relation to the bimetal to change thermal rating of the circuit breaker.

REFERENCES:
patent: 3758887 (1973-09-01), Ellsworth et al.
patent: 3949331 (1976-04-01), Cellerini et al.
patent: 3950714 (1976-04-01), Mrenna et al.

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