North American Electric V2-500S4-W500824A-EHT, 500 HP, 1800 RPM, 5008P Frame, 460V, 3PH, NEMA Design B, 60HZ, 1.15 S.F., WP1,Vertical Hollow Shaft Motor, Cast Iron, Prem Eff, Inverter Duty, Extra High Thrust, includes 2.188 Coupling