Temperature sensitive switch

Details Temperature sensitive switch Temperature sensitive switch

H - Electricity

01

H

306/183

H01H 5/30 (2006.01) H01H 37/54 (2006.01)

Patent

CA 1088132

ABSTRACT OF THE DISCLOSURE A thermally sensitive switch has a snap-action bimetallic disc which, at a predetermined temperature, snaps into a position to open the switch contacts. In order that, once opened, the contacts remain open until reset by hand, even if the bimetallic disc returns to its original position, another snap-action disc, which is not bimetallic and which has the same size as the bimetallic disc, is disposed directly adjacent to the bimetallic disc between this and a pin for actuating the switch contacts. When, under the influence of the bimetallic disc, this second disc is snapped to a position to open the contacts, it remains in that position until reset manually even though the bimetallic disc may resume its original position.

262514

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