1 hp 1800 RPM, 3.2/1.6 amps 208-230/460 Volts 3 phase MotorNEMA 143T Frame 7/8" Diameter Keyed shaft x 2 1/4"6 Foot PoundsService Factor: 1.25, Overload protection = NoneReversible, Ball Bearings, Class F InsulationTEFC = Totally Enclosed Fan-Cooled40C Ambient Temp.1 Year Manufacture WarrantyUnimount Brake Motor; UL/CSAModel CE59