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Bimetal normally closed (NC) thermostat works
Bimetal thermostat is normally closed and normally open type, their working principle is the same, but the work is the opposite. Bimetal sudden jump thermostat is a temperature after the bimetal as a thermal responsive components , When the electrical heat generated by the transfer to the bimetallic disc to reach the operating temperature bimetal rapid movement through the mechanism of action, the contact open or closed; when the temperature dropped to set the reset temperature, the bimetal quickly return to its original state , The contact is closed or disconnected, to achieve the purpose of connecting or disconnecting the circuit, thereby controlling the circuit.
The normally closed bimetal is electrical normal work, the bimetal in the power state, the contact is closed, when the temperature reaches the operating temperature, the bimetallic heat generated by the internal stress and rapid action, open the contact, cut off Circuit, which play a role in controlling the temperature. When the appliance is cooled to the reset temperature, the contacts automatically closed, restore normal working condition.
Common KSD301, Ksd9700, both normally open and normally closed type.
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