Electrical Type: Three Phase HP: 25 RPM: 3600 Frame: 256TPH Enclosure: WPI Phase: Three Voltage: 230/460 Type: AUS Down Thrust: 2600 LBS Base Diameter: 12.000" Coupling Height: 23.375" Coupling Bore Size: 1 Coupling Keyway: 1/4 Vertical HOLLOSHAFT High Thrust Motors - "P" Base, Three Phase|Weather Protected Type I (WPI) Premium Efficient, SINEWAVE OPTIMIZED