This Marathon 56T11O5305 condenser fan motor is three phase with one-speed operation. It runs at 1 hp, with a maximum speed of 1140 rpm. It operates at 208-230/460 VAC, 4.1-4.2/2.1 Amp. The motor has a 56HZ frame with open air over enclosure, rigid base mounting, and ball bearing system. It has a 5/8" x 5" shaft size. Weight is 29 pounds.