Variable speed switch with off position. Switch is used in the White-Rodgers ceiling mount models CSC1000, SSC1000, and FSC1000.
Size measures 2-1/8 x 1-1/2 x 1 inch. The 3 wires are 7 inch in length. Threaded shaft mounts in a 3/8" hole. Rating label; 2.5 amps FLA, 6.0 amps LRA, 120 vac.