Overload relay is an electrical protection device used to protect motors from overload and overcurrent. It has the ability to monitor motor current and automatically interrupt power if the motor is subjected to undue current loading.

Overload relays are widely used in industrial fields and are usually installed in motor control circuits. Its main function is to detect the current of the motor in time and automatically interrupt the power supply when the current is too large to protect the motor from damage. In power systems, overload relays can also be used to protect electrical equipment such as transmission lines and transformers.

Overload relay plays a very important role in modern industrial production. It can protect the motor and extend its service life, and can help companies reduce the cost of repairing and replacing equipment and improve production efficiency. In addition, Overload relay can also help companies improve the safety and stability of production lines, reduce the incidence of production accidents, and ensure the personal safety of employees.

In short, Overload relay is a very important electrical protection device with a wide range of applications. Its function is to protect the motor and prevent overload and overcurrent from damaging the motor. It is one of the indispensable equipment for modern production.