General Purpose Motor 3-Phase Totally Enclosed Fan-Cooled 50 HP Nameplate RPM 1780 326T Frame Voltage 208-230/460 60/50 Hz 3 Phase 60.1 Full Load Amps Mounting Rigid Base Motor Mounting Position Horizontal Motor Thermal Protection None Insulation Class F 1.25 Service Factor Ball Bearings Frame Material Cast Iron Max Ambient Temp 40 Degrees C CW/CCW Rotation Overall Length 31-1/8 In. Motor Shaft Design Keyed