Bussmann CB185-120 Waterproof High Amp Flush Mount Type III (3) Circuit Breaker (120 Amp), 1 Pack CB185 Series, Type III, High Amp Circuit Breakers are typically used in auxiliary and accessory circuits for trucks, buses, RVs and marine applications Flush mount design with push-to-trip button that acts as a master disconnect for when you don't want the protected circuit powered 120 Amp, 42 Vdc; manual reset Sealed waterproof housing; 1/4-28 threaded studs; SEMS nuts installed 1 pack (box)