Replacing OEM numbers : 103N0021, which is a direct replacement for the old or broken one. Compatibility: This product is Compatible with Danfoss refrigerators and freezers, and the relay is suitable for compressor motors from 1/10 to 1/3 horsepower. Product Function: This relay is responsible for controlling the current supply to the compressor motor and has a thermal overload protection function to help prevent the motor from overheating. Easy to install: Direct replacement without adjustment, perfect compatibility and high reliability. Product Material: This product is specially designed with metal and plastic materials, with a long service life and not easy to damage., Manufacturer: Be In Your Mind