General Purpose Motor 3-Phase Totally Enclosed Fan-Cooled 20 HP Nameplate RPM 1770 256TC Frame Voltage 208-230/460 60/50 Hz 3 Phase 53-47/23.7 Full Load Amps Number of Speeds 1 Mounting Face Motor Mounting Position Horizontal Motor Thermal Protection None Insulation Class F 1.25 Service Factor Ball Bearings Frame Material Aluminum Max Ambient Temp 40 Degrees C CW/CCW Rotation Overall Length 25-3/4 In. Motor Shaft Design Keyed