Description The rolled steel frame and precision balanced rotor provides quiet and long lasting performance. For use in most three phase applications, including pumps, fans, and blowers. Looking for a compressor motor? This motor features a high starting torque to get the job done!PRODUCT DETAILS: North American unit PR56CH2M4A also features inverter duty wire. And, best of all, NAE motors have vacuum pressure impregnation (VPI) windings from the factory, which gives additional winding protection. Replaces model F56CH2M4A C-flange with removable base Service Factor = 1.15 Can use with inverter Quality sealed bearings TEFC enclosure keeps dirt out