What the 125 HP / 460 V rating means for fit
The FRN125P11S-4UX: The 125 HP rating at 460 V three-phase matches a standard NEMA frame motor of that size. On a 480 V plant distribution system the drive will deliver full rated output without current-limiting. This is the headline selection parameter: if your motor nameplate reads 125 HP at 460 V, this drive is sized for it.