The Grainger Approved 2-1/2 HP Motor is a single phase, open drip proof, general purpose motor. It has a NEMA frame size of 56C, operates on 115/230V at 3450 RPM, and is rated for continuous duty. The motor has a 1.15 service factor and is CSA certified. It can be used for driving pumps, fans, and other shop equipment. The motor dimensions are 9-3/4" diameter x 11-1/4" long. It comes with a 12 month warranty.