The Grainger 14D391 is a 3/4 HP, 115V, 1725 RPM, 56C frame, open drip proof, single phase, ball bearing electric motor. It has a 1.15 service factor and is thermally protected. The motor is totally enclosed, fan cooled (TEFC) with a cast iron frame. It has a C-face mounting style and measures approximately 9-1/2" long by 7-3/4" wide by 8-7/8" high. The 14D391 operates on single phase power and is suitable for industrial, commercial, and residential applications.