Specifications: 1, On/Off 2 positions. 2, Rear cover insulates terminals against any short of circuits. 3, ABS plastic housing, durable made for safety use. 4, Copper terminal studs with nuts and washers. 5, 4 mounting screw holes. 6, 275A continuous at DC 12V, 455A Intermittent at DC 12V, 1250A momentary at DC 12V. 7, Used for DC 12 - 48V systems to isolate and secure the electrical system. 8, Eliminate any power draw from the battery when vehicle or boat is not in use. 9, Size: 2. 68" x 2. 68" x 3. 07". 10, Disconnects the battery safely. 11, Universal used for Car, Vehicle, RV and Boat. Package included: 1 x On/Off battery switch. 4 mounting bolts.