Overload relay (overload protection relay) is a kind of power protection device, mainly to protect the motor from damage such as overload, overheating and phase sequence misalignment. Overload relay is an essential component of the motor control system and is of great significance to ensure the safety, reliability and stability of equipment operation.

Overload protection relays are widely used, not only in machinery and equipment in industrial production, but also in household appliances and furniture. During the production process, if the operation of machinery and equipment exceeds the safe current value, the overload protection relay will automatically sound an alarm and stop the operation of the equipment to avoid damage to machines and production equipment and ensure the safety of workers.

Overload protection relays can play an important role in ensuring the normal use and maintenance of equipment. The use of overload protection relays can reduce the number of machine repairs, reduce maintenance costs, and increase the service life and efficiency of the equipment.

In short, the overload protection relay is an important part of the motor protection and control system. It is of great significance in ensuring the normal use of equipment, improving production efficiency, ensuring the safety of workers, and reducing maintenance costs.