HD-Series Battery Switch Selector with Alternator Field DisconnectPN: 3003500 Amperes Continuous Rating for large diesel engines500 Ampere Continuous RatingAccepts 4/0 battery cablesIgnition protected - safe for installation aboard gasoline powered boats.870" (22.01mm) stud length to accept 4 or more cable terminals1/2" (M12) Tin-plated copper studs for maximum conductivity and corrosion resistanceMeets American Boat and Yacht Council (ABYC) requirements for battery switchesTactile textures indicate knob position by feel onlyCase design allows surface or rear panel mountingFits all Perko and Guest low amperage battery switch hole patternsSwitch Ratings: 10 Sec: 2750A60 Sec: 1150A5 Min: 700AContinuous: 500AMax Voltage: 32V DC Product : BLUE SEA 3003 BATTERY SWITCH HD SELECTOR AF Manufacturer : BLUE SEA SYSTEM Manufacturer Part No : 3003 UPC : 632085030032