Electrical circuit breaker

Details Electrical circuit breaker Electrical circuit breaker

1974-09-12

1976-03-16

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

335 45, 337 94, H01H 7116

Patent

active

039449599

ABSTRACT:
In an electrical circuit breaker having a bimetal element which deflects, upon passage of excess currents, to displace a movable member to trip the circuit breaker, an adjustable element, in the form of a wedge, is provided between the bimetal element and the movable member, so that variation of the position of the wedge and the effective thickness thereof between the bimetal element and the movable member varies the amount of deflection of the bimetal element required to trip the circuit breaker.

REFERENCES:
patent: 2897319 (1959-07-01), Wolff
patent: 2981811 (1961-04-01), Steven et al.
patent: 3211861 (1965-10-01), Freese
patent: 3226510 (1965-12-01), Thomas et al.
patent: 3708771 (1973-01-01), Schreckenberg

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