SEAFLO 12v/24v On/off Battery Isolator Switch Boat Caravan & Rv 1250 Amp/275 Amp Great for your boat, caravan, show car, trailer, winch power cable, and more Heavy Duty - Rated at 1250 Amps momentary, 275 Amps continuous at 12V Disconnects the battery safely, to eliminate any power draw from the battery when vehicle or boat are not in use. UV stabilized bakelite vapor-proof housing - Built to last in marine conditions 4 mounting screw holes (mounting screws not included)