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What is the function of the thermal relay used on the cutting machine?
Dec 09, 2018

If the motor of the cutting machine is overloaded, the current in the winding increases, the current in the thermal relay element increases, the temperature of the bimetal rises higher, the bending degree increases, the herringbone lever is pushed, and the herringbone lever pushes the normally closed. The contact disconnects the AC contactor coil circuit, causes the contactor to release, cuts off the power of the motor, and the motor is stopped to be protected.

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