The Nidec-Embraco 513516191-ESP Relay is an electrical switching component designed to control compressor operation in refrigeration and air-conditioning systems. It works by receiving a control signal that energizes the relay and switches electrical power to the connected load, allowing the compressor to start or stop as required. This relay is commonly used with refrigeration equipm... https://www.partshnc.com/nidec-embraco-513516191-esp-relay