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Connection circuit diagram |
Characteristic |
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The temperature switch is a winding thermostat (NC contact) and is suitable as a protection device for slowly increasing motor temperatures. When the rated response temperature is reached, it can open an auxiliary circuit. When the motor temperature decreases, the winding thermostat closes again as soon as the temperature falls significantly below the rated response temperature.
When the motor current rises quickly (e.g. with a locked rotor), these switches are not suitable due to their large thermal time constants.
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See also "Motor protection"
