Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Patent
1987-10-16
1989-02-28
Broome, H.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
337 45, 337 53, 337 59, H01H 6100, H01H 7116
Patent
active
048089613
ABSTRACT:
In an overcurrent protective relay thermally operable by a bimetal, a movable contact mechanism is employed by utilizing a snap inversion mechanism. A normally-closed contact is employed with having an overtravel to achieve the reliable contacting. A manually resettable lever is also employed to open the normally-closed contact after the overcurrent protective relay has been actuated.
REFERENCES:
patent: 4635020 (1987-01-01), Sako
patent: 4652847 (1987-03-01), Sako
Ootsuka Shigeharu
Sako Yuji
Tsutsumi Kiyohide
Broome H.
Mitsubishi Denki & Kabushiki Kaisha
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