This Marathon 56H17F2021 vector duty motor is three phase with one-speed operation. It runs at 1 hp, with a maximum speed of 1800 rpm. It operates at 230/460 VAC, 3.2/1.6 Amp. The motor has a 56C frame with totally enclosed fan cooled (TEFC) enclosure, C-face with base mounting, and ball bearing system. It has a rolled steel frame. Weight is 27 pounds.