As the most widely used power equipment, electric motors are the main source of power for other electromechanical equipment.

Due to the wide application of motors in industrial fields, they need to work in harsh environments. In some fields, motors need to be frequently operated 24 hours a day.

Overload protection: When the motor runs over its rated current for a long time under an overload fault, it will cause the motor to overheat, reduce insulation or even burn.