The Speed Queen D518649 Thermal Fuse Assembly is a counter ratio thermal fuse assembly that is designed to protect the motor from overload and overheating. The assembly is composed of a thermal fuse, a thermal switch, a PDF, and a moment of electric shock termination fuse. The thermal fuse is designed to trip the thermal switch and protect the motor if the temperature exceeds a predet... https://www.hnkparts.com/D518649-SPEED-QUEEN-THERMAL-FUSE