About this item Works with 12V, 24V, or 36V 2-wire systems For front mount panel installations Corrosion resistant, plated brass electrical components, drain holes in receptacle keep water away from electrical components and weather resistant sealing cap Perma-Lock screw terminals will not loosen under extreme hull vibration Accepts up to 10 AWG wire and mounts in a standard 1-1/8" diameter mounting hole