Battery Switch: used for DC 12 - 48 V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch. On/Off 2 positions, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V. Switch on = Power; Switch off = No power. Battery Switch ABS plastic housing, durable made for safety use, rear cover insulates terminals against any short of circuits, equiped with 4 sets of bolts.eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. Satisfaction service,We provide carefree return,Just want you to shop with confidence!f you have any questions, please do not hesitate to contact us! This battery cut off kill switch has four removable side plates provide access of up to 1/0 cables.Tin-plated copper studs and nuts. This battery master switch Very easy to install and widely used for Car, Marine, Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery banks and other 0-48V Devices.