15 hp 1800 RPM, 36.0/18.0 amps 208-230/460 Volts 50/60 Hz Three Phase MotorNEMA 254T Cast Iron frame Keyed Shaft 1 5/8" Diameter x 4"Service Factor: 1.15, Overload protection = NoneRigid Base Mount, greaseable Ball Bearings, Class F Insulation, Reversible1 Year Manufacture WarrantyHostile duty three phase motor designed for chemically corrosive environments with either 50 or 60 Hz power. Inverter Duty. Self-certified Class 1, Division 2, Groups A, B, C, D. Wiring diagram on motor name plate. TEFC = Totally Enclosed Fan cooled. GB55