1 hp 1800 RPM, 3.1/1.6 amps 230/460 Volts 60 Hz Three Phase MotorNEMA 143T Rolled Steel Frame with Cast Aluminum End Bells, Keyed Shaft 7/8" Diameter x 2 1/4"Service Factor: 1.15 Overload protection = NoneC-Face Mount, Ball Bearings, Class F Insulation, Reversible1 Year Manufacture WarrantySpeed controllable motor for material handling, pumps, and fans, in normal environments. 5:1 speed range at constant torque, 20:1 at variable torque. NEMA design B. Brake provisions. Wiring diagram on motor name plate. ODP = Open Drip-Proof. HC81