Thermal relay

Details Thermal relay Thermal relay

1989-02-22

1989-12-05

Broome, H.

Electricity: electrothermally or thermally actuated switches

With separate distinct diverse art-type switching device

Bimetallic device with other

337 4, 337140, 337299, H01H 3702, H01H 7118

Patent

active

048855600

ABSTRACT:
A thermal relay includes a housing, two fixed contacts secured to respective terminals disposed in the housing, a disc-shaped bimetal disposed in the housing and having two movable contacts made into and out of engagement with the respective fixed contacts, an adjusting screw including a screw portion and a head portion which are coupled with each other by a meltable metal, and a coil spring biasing the disc-shaped bimetal to the head portion of the adjusting screw to thereby support it.

REFERENCES:
patent: 4047141 (1977-09-01), Holden
patent: 4295114 (1981-10-01), Pohl
patent: 4675642 (1987-06-01), Reiferscheid

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