HD-Series Battery Switch Single Circuit ON/OFF PN: 3000 600 Amperes Continuous Rating for large diesel engines 600 Ampere Continuous Rating Accepts two 4/0 battery cables per terminal Ignition protected - safe for installation aboard gasoline powered boats .870" (22.01mm) stud length to accept multiple 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 SPECIFICATIONSInrush Rating: 0.25 sec (10 repeats)2,000 Amperes DCCranking Rating: 9.75 sec (10 repeats)1,200 Amperes DCIntermittent Rating: 5 min (UL 1107)900 Amperes DC Continuous Rating: (UL 1107)600 Amperes DCVoltage Rating48 Volts DC MaximumCase MaterialReinforced PolycarbonateTerminal Hole Size1/2" (M12)Torque220 in-lbs.