PTC is a thermistor, motor with PTC temperature control means that the motor built-in PTC temperature measuring element, can be built-in or external temperature control equipment, to achieve thermal (motor heating) protection or control of the motor cooling fan purpose.
Select a certain value such as 65 ° PTC thermal element, fix it in the motor shell or the idle end of the winding, this component reaches 65 °, automatically disconnect, its two ends with wires string into the control circuit, after its thermal protection, disconnect the control circuit, the motor stops working, thereby protecting the motor.
