STURDY & FULLY ENCLOSED SHUT OFF SWITCH: Duty Cut Off Switch is made of ABS plastic housing and copper tin plating inner stud. Fully enclosed design to protect wiring from dirt, , and rain. This is the in harsh ocean conditions. COMPATIBILITY & SAFETY: This Battery Kill Switch Used for DC 12 - 48V systems to isolate and secure the electrical system; any power draw from the battery when vehicle is not in use, disconnects the battery safely; provide a reliable way to shutdown electrical power during maintenance and protect batteries from excessive drain. EASY TO OPERATE: On/Off 2 position, Suitable for 12 V/24 V/48 V systems. Current voltage: rating at 300 A continuous (1 hour) at 48 V DC and 1000 A for 5 seconds. Clockwise to turn on , counter clockwise to turn off. WIDELY APPLICATION: Battery isolator switch is universal used for RV, Marine, Car, Boat, , Travel Trailer, Truck, ATV, UTV battery and other engine application, makes it an effortless job of turning the battery on and off.<br><br>Design: Fully enclosed design to protect wiring from dirt, , and rain. 2 Positions: On/Off. Voltage: Used for DC 12 - 48V systems to isolate and secure the electrical system. Rating: 275 A continuous at DC 12V, 455 A Intermittent at DC 12V, 1250 A momentary at DC 12V. Colour:Black+red Material:ABS plastic + metal Size:2.6x2.6x2.9inches Terminal Diameter: 3/8 inch(10mm)<br><br>Package Contents: 1 x Battery switch 4 x Mounting Bolts 4 x 2 x 3/8 Copper Ring Terminals 4 x Heat Shrink Tubings 1 x Hex wrench<br><br>Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.