The Grainger 16N051 is a 1/2 HP, 115V, 1725 RPM, 56C Frame, Open Drip Proof, Single Phase, Ball Bearing, Electric Motor. It has a NEMA standard 56C frame with a 1.15 service factor. The motor is thermally protected and rated for continuous duty applications. It features a cast iron frame, end brackets and conduit box. The 16N051 has a Class B insulation and standard starting torque. This general purpose motor can be used for various industrial, commercial and residential applications.