General Purpose Motor, Three-Phase, Open Drip Proof Motor Enclosure Design, 20 HP, Nameplate RPM 1,770, Frame 256T, Voltage 230/460V AC, 60 Hz Hz, Three Phase, Full Load Amps 48.5/24.3 A, Rigid Base Motor Mounting Type, Motor Thermal Protection None, Ins. Class F, Motor Service Factor 1.15, Ball Motor Bearings, Motor Frame Material Steel, Max. Ambient Temp. 40 Degrees C, CW/CCW Motor Shaft Rotation, Nominal Efficiency 93 Percent, Continuous Duty, 1701-1800, CE, CSA, UL Recognized