This Marathon 5KH42JN0328S farm duty exhaust fan motor is single split phase with one-speed operation. The farm duty exhaust motor is for agricultural fan applications, such as in poultry house and barn exhaust fans. It runs at 1/2 hp, with a maximum speed of 1800 rpm. It operates at 115/208-230 VAC, 8.0/4.0-4.0 Amp. The motor has a 56 frame with totally enclosed motor enclosure, resilient base mounting, and ball bearing system. It has a rolled steel frame. Weight is 21 pounds.