Siemens-Allis 51-391-796 Three-Phase Ac Induction Motor

The Siemens-Allis 51-391-796 AC Motor is a 2 HP, three-phase AC induction motor designed for industrial power transmission and general-purpose duty. It runs on 60 Hz with a 230/460 VAC rating, features a two-pole design with a nameplate speed of 3600 RPM (typical operating speeds range around 3420–3600 RPM), and mounts on a NEMA 145T frame with an approximate 7-inch shaft length. Commonly used to drive pumps, compressors, conveyors, fans, and process machinery, this motor suits industrial equipment requiring high-speed operation and reliable performance, with broad mounting compatibility thanks to the 145T frame design. Maintenance teams and system integrators frequently select the 51-391-796 for equipment repairs, motor replacements, and retrofit projects involving legacy Siemens-Allis drive systems.