This Marathon 48S17D7209 attic fan motor is single split phase with two-speed operation. It runs at 1/3 hp, with a maximum speed of 1800 rpm. It operates at 115 VAC, 5.3/2.9 Amp. The motor has a 48Y frame with totally enclosed motor enclosure, resilient base mounting, and ball bearing system. It has auto protection. Weight is 21 pounds.