Supplementary Circuit Breaker Protectors: Type - Supplementary Thermal Breaker; Poles - 1P; Amps - 50; Voltage - 12VDC; Mounting - Bracket; Terminals - Stud; WxHxD - 1.24x0.69x0.79"; Additional Information - SAE Type J553: Automatic, Resets. Housing: Metal; Manufacturer Series - 120