Features: The on-off disconnect switch is designed for use on a single 12-48 volt battery. It can prevent unknown devices from draining the battery and save you from having to recharge it on a regular basis. The patented Contour Locking System, allowing it to be a stand-alone unit, or locked together with other switches. This battery cut off kill switch has four removable side plates provide access of up to 1/0 cables. The rear cover insulating the rear terminals against any short circuits, ensuring that the switch meets ABYC requirements. Tin-plated copper studs and nuts; Ignition-protected . This contour battery master switch is widely used for Car, Marine, Boat, RV, for Camper, Travel Trailer, Truck, ATV, UTV, Battery banks and other 0-48V Devices. Package Includes: 1x Battery Switch 4x Screws 4x Nuts 1x Manual 2x Red Heat Shrink Tube 2x R Terminal Specifications: Material:Plastic,Metal Continuous Rating : 275Amps for DC Intermittent Rating : 455Amps for DC Cranking Rating : 1250Amps for DC Voltage Rating : 12-48 Volts for DC Operation : ON/OFF Mounting : Recessed or Surface Ignition protected Termination Stud Size : 20x10mm (3/8 inch) Oimensions : 69x69x75 mm/2.75x2.75x3 inches note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.