1/2 hp 1800/1200 RPM, 7.2/5.0 amps 115 Volts 60 Hz Split Phase MotorNEMA 56 Frame, Rolled Steel with Cast Aluminum End Bells, Keyed Shaft 5/8" Diameter x 1 7/8"Service Factor: 1.0 Overload protection = NoneResilient Base, Ball Bearings, Class B Insulation, Reversible1 Year Manufacture WarrantyFor commercial and industrial ventilation systems. Wiring diagram on motor name plate. TEFC = Totally Enclosed Fan Cooled. S063JWR8122012B