This Marathon 56H17T2015 vector duty motor is three phase with one-speed operation. It runs at 1/2 hp, with a maximum speed of 1800 rpm. It operates at 230 VAC, 1.8 Amp. The motor has a 56C frame with totally enclosed non-vent (TENV) enclosure, C-face with base mounting, and ball bearing system. It has a rolled steel frame. Weight is 24 pounds.