Overload protectors are often referred to as: Torque Retainer, Overload Protector, Torque Clutch, Torque Clutch, Force Limiter, Axial Load Overload Protector, Torque Limiter, Safety Clutch, Safety Coupling, Force Limiting Clutch, Clutch limiter, ball clutch, friction clutch.

The function of the overload protector: it is often installed between the active and passive sides of the power transmission. When an overload fault occurs (the torque exceeds the set value), the torque limiter will be separated, thereby effectively protecting the driving machinery and the load; Common forms are: friction torque limiters and ball torque limiters. The installation structure of the torque limiter includes: shaft-shaft, shaft-flange, shaft-synchronous pulley, shaft-sprocket, shaft-gear, shaft-pulley, etc.

The overload protector samples the signal from the current transformer, converts the load current of each phase into a voltage signal proportional to it, and inputs the signal and all control signals into the microprocessor, which continuously collects, calculates and stores various signals. , and compare with the corresponding conditions, and then output the result.