1/5 hp 1075 RPM, 1.6 amps 208-230V Volts 60 Hz PSC Motor5.0" Dia. Frame, Rolled Steel, Flat Shaft 1/2" Diameter x 4"Service Factor = 1, Overload Protection: AutoHub Mount, Sleeve Bearings, Class B Insulation, CCW Lead End1 Year Manufacture WarrantyDirect Drive Fan Motor for central HVAC systems. Wiring diagram on motor name plate. OAO = Open Air Over, K048TTW4147012B