2BM overload protector has a very fast tripping action to prevent the motor temperature from being too high and a manual reset protector for automatic circuit disconnection when the motor overloads for a long time, the rotor is blocked, the voltage is too low, the temperature is too high and the air is not ventilated, It is mainly used in air motor, motor pump, commercial and industrial machinery motor, food waste disposer , fuel oil motor, power tool, vacuum cleaner, etc.