Electrical safety device

Details Electrical safety device Electrical safety device

1992-03-16

1993-11-16

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337113, H01H 6102, H01H 7108

Patent

active

052627497

ABSTRACT:
An electrical safety device is provided with a heat responsive relay adapted to be interposed between a load and a power source. The relay is adapted to open circuit in response to a predetermined temperature. A heater element responsive to the opening of the relay is shunted across the relay. When the relay opens, power is shunted to the heater for maintaining the relay at least at the predetermined temperature thereby holding the relay open while the load remains connected to said power source.

REFERENCES:
patent: 4514715 (1985-04-01), Chen
patent: 4580123 (1986-04-01), Roller et al.

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