Bimetal overload relay

Details Bimetal overload relay Bimetal overload relay

H - Electricity

01

H

306/169

H01H 61/02 (2006.01)

Patent

CA 1092630

Abstract of the Disclosure A U-shaped heater unit is surrounded by a U-shaped bimetal, the legs of which move in response to temperature variations. The motion of the bimet- al is conveyed through a wall by a slidable pin which acts to rotate an L- shaped compensator element. This rotation lifts a link element which operates a switch when the trip point is reached. A reset mechanism includes a plunger which when manually depressed rotates a reset arm first in one direction to reset the switch after it has been tripped and then in the opposite direction to a neutral station in which it will not reset the switch. The reset mechanism thus cannot be defeated by jamming the plunger in its fully depressed position.

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