The Copeland 971-0064-05 has been designed primarily for HVAC compressors to protect them against electrical faults. It runs well on a wide voltage span and 120V to 240V at 60Hz. It carries a current of not more than five amps. Its temperature range is between -40°F to 150°F. The overload protection device measures the electric current going through the compressor. #Copeland #971-0... https://www.partshnc.com/971-0064-05-copeland-overload-115-23050-120-24060