The 16WC73 is a Westinghouse 15 Amp, 125 Volt, 1875 Watt, 3 Prong Grounded Plug, Manual Reset, Thermal Overload Protector. It has a NEMA 5-15P plug and a NEMA 5-15R receptacle. The thermal overload protector helps prevent motor burnout and provides overload/short circuit protection for motors, appliances, tools and more. It has a compact design with dimensions of 2-1/2" length x 2" width x 2-3/4" height. The thermal overload automatically resets when cooled. This is a high quality and reliable thermal overload protector made in the USA by Westinghouse.