The Grainger 170NM3 is a 3/4 HP, 1725 RPM, 115/230V, single phase, open drip proof motor. It has a 56C frame with a 1.15 service factor. The motor is thermally protected and has Class F insulation. It has a 1" diameter shaft with a 1/4" keyway and mounts using a standard 56C face. The motor is designed for horizontal operation and for use with pumps, fans, and other industrial equipment. With its versatile voltage and moderate horsepower, the 170NM3 provides reliable performance for a range of applications.