Thermal cutout fuse

Details Thermal cutout fuse Thermal cutout fuse

1982-09-29

1984-10-30

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With fusible, combustible or explosive material

337408, H01H 3776

Patent

active

044802471

ABSTRACT:
A thermal cutout fuse comprises a housing, a first lead wire thrust into the housing, a movable contact connected to the first lead wire, a stationary contact disposed around the movable contact and electrically connected to a second lead wire, a coil spring having resilient force of bending elasticity large enough to support the movable contact and separate the movable contact from the stationary contact, a thermally sensitive pellet having a melting point which conforms to the preset unsafe temperature and disposed within the housing, and a solid member interposed between the thermally sensitive pellet and the movable contact and adapted to bring the movable contact into contact with the stationary contact against the bending elasticity of the coil spring.

REFERENCES:
patent: 4322705 (1982-03-01), Hara

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