• Battery master disconnect switches come with  all black square mounting panel that measures 2-1/2” x 2-1/2” • Most racing organizations and sanctioning bodies require these for an emergency cut-off switch • Switch has a bright red epoxy coated handle and accepts 3/8" ring terminals for battery posts and #10 ring terminals on alternator posts • 4 Post • 250 Amp W/20 amp Alternator post