HD-Series Battery Switch Selector. PN 3002. 500 Amperes Continuous Rating for large diesel engines. 500 Ampere Continuous Rating. Accepts 4/0 battery cables. Ignition protected safe for installation aboard gasoline powered boats.870 22.01mm stud length to accept 4 or more cable terminals. 1/2 M12 Tin-plated copper studs for maximum conductivity and corrosion resistance. Meets American Boat and Yacht Council ABYC requirements for battery switches. Tactile textures indicate knob position by feel only. Case design allows surface or rear panel mounting. Fits all Perko and Guest low amperage battery switch hole patterns. Switch Ratings 10 Sec 2750A. 60 Sec 1150A. 5 Min 700A. Continuous 500A. Max Voltage 32V DC PN 3002. 500 Amperes Continuous Rating for large diesel engines 500 Ampere Continuous Rating. Accepts 4/0 battery cables Ignition protected safe for installation aboard gasoline powered boats.870 22.01mm stud lengt 1/2 M12 Tin-plated copper studs for maximum conductivity and corrosion resistance. Meets American Tactile textures indicate knob position by feel only Case design allows surface or rear panel mounti