TH About this itemThe on-off disconnect switch is designed for use on a single 12-60 volt battery. It can prevent unknown devices from draining the battery and save you from having to recharge it on a regular basis.This cut-off selector switch can be easily installed on petrol-powered boats or vehicles,such as small yacht,RV,camper,truck,or ATV etc.This car battery disconnect switch has a continuous rating of 275 amps,an intermittent rating of 455 amps and a crank rating of 1250 amps.It has four removable side plates for access of up to 1 or 0 cables plus a rear cover insulating the rear terminals against any short circuits.It is durable and solid contraction. Package comes with Screws,bolts,copper terminals and shrink tubes and you are ready to go.Features:Cable knockout plate on all sidesExtend the life of camper or RV batteryEasy install that only takes about 30 minutesTin plated copper studs an nutsIgnition protectedSpecification:Continuous Rating: 275 ampsIntermittent Rating: 455 ampsCranking Rating: 1250 ampsVoltage Related: 12-60V DCOperation: Manual On or Offcolor:redandblackStud Size: 50.3x7.5mmPackage Content:1 x Battery Switch4 x Mounting Bolt2 x 8mm Copper Lug Ring Terminals2 x Shrink Tubes Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.