Ampper Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off)

Convenience: direct fit and no modifications, hook up to TOP post battery negative directly, do not need additional battery cables or lugs, isolate and secure the electrical system easily., Specification: used for DC 12 - 48 V systems, ON/OFF 2 positions, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V., Heavy Duty: ABS plastic housing, durable made for safety use. Extended the top post battery negative to original size: standard top post negative (17 mm cone/tapering negative (-)), installation space should be checked., Compatible: used for standard top post battery (19 mm cone/tapering positive & 17 mm cone/tapering negative). Can stand alone or be locked together with other switch., Purpose: eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely, widely used for car, vehicle, Rv and boat.