Miniature circuit-breaker with remote tripping

Details Miniature circuit-breaker with remote tripping Miniature circuit-breaker with remote tripping

1992-05-18

1993-05-25

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 77, H01H 7116, H01H 6102

Patent

active

052144054

ABSTRACT:
A miniature circuit-breaker includes at least one thermal trip element, which includes a force translator which causes switching contacts to open. The force translator may be a breaker mechanism. The thermal trip element works with a thermally sensitive element, in particular a bimetal trip element, which is in thermally conductive contact with a PTC (positive temperature coefficient) thermistor. The PTC thermistor is connected to a voltage allocated to properly heat the thermally sensitive element causing it to respond. In this manner, the voltage can be applied through remote tripping.

REFERENCES:
patent: 3614698 (1971-10-01), Gardner
patent: 3840834 (1974-10-01), Obenhaus et al.
patent: 4616206 (1986-10-01), Bridges et al.

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