Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – Plural diverse actuating means in single switch
Patent
1988-10-18
1990-02-06
Broome, H.
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
Plural diverse actuating means in single switch
337 3, 337 67, H01H 3702
Patent
active
048991244
ABSTRACT:
A thermally controlled electric switching arrangement with a temperature controller, having a snap-action switch actuated by a bimetallic strip and of which the dead center position is displaceable by a manually operable setting device in order to influence the control point, and with a temperature limiter which is constructed as a melting metal fuse which comprises a fusible element, pressure elements engaging therein and at least one switching contact held in the closed position by the pressure element, so long as the limiter has not responded, is structurally simplified, the simplification also being intended to improve the variability of installation of the switching arrangement. This is achieved in that the movable contact of the temperature limiter which is actuated by a thrust pin biases a first contact face of the fixed contact of the temperature limiter, which is opposite a second contact face of the fixed contact which is biased by the movable contact of the temperature controller.
REFERENCES:
patent: 3964004 (1976-06-01), Mertler
patent: 4295114 (1981-10-01), Pohl
Broome H.
Thermostat-und Schaltgeraetebau GmbH & Co. KG
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