Springer controls n7svz0522, 30mm 3-pos. Lever, 1-0-2, spring returned right to center,2 n.o. 2 n.c. this oil-tight 3-position selector is designed to fit in an industry standard 30 mm panel hole. 2 normally open and 2 normally closed contact are included. Please reference the contacts by position column to find the right selector for the job.