Basically any motor can be obtained in any HP rating - more HP more bucks. HP wise they vary from 1 HP to 13,000 HP and driven with a 3 phase 12,000 volt supply(largest I have personally seen)
A "regular" 3phase AC motor can be obained thru Grainger, any electrical distributor, or motor shop. You can get these in 230 and 460 line voltage or reconnectible 230/460.
I agree with Lynn think in terms of Kw when on the electrical side and in terms of HP on the mechanical side. It really makes no difference which you use because 1 HP = 746 watts so the terms are interchangable.
