Heavy Duty: ABS plastic housing, durable made for safety use, rear cover insulates terminals against any short of circuits, equipped with 4 sets of bolts.Operation: On/Off 2 positions, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V.Compatible: used for DC 12 – 48V stems to isolate and secure the electrical stem, can stand alone or be locked together with other switch.Its purpose is to eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.Widely used for car, marine boat, RV, camper, travel trailer, truck, ATV, UTV, battery banks and other devices.Package include:1x On/Off battery switch,4 bolts incuded.Product descriptionSize:On-Off SwitchSpecifications: 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