Quickcar 55-002 Master Disconnect Switch w/ Alternator Posts & No Plate This QuickCar Battery Master Disconnect Switch is designed for cars using an alternator comes without a mounting Panel and is designed to mounted by user in the location of their choice. Includes hardware to be installed in a 3/4 In hole. Most racing organizations and sanctioning bodies require these for an emergency cut-off switch. QuickCar s master disconnect switches have a bright red epoxy coated handle and accept 3/8 In ring terminals for battery posts and #10 ring terminals on alternator posts. QuickCar Pt.# 55-120 is recommended for jumping current from the alternator to the battery post.MDS w/ Alt. Posts & No Plate 55-002