Frame size R5, NEMA Type1 enclosure (IP21).
The UL light-overload output rating of 96 A at 75 Hp is the figure that governs motor sizing in North American installations — this drive is sized for a 75 Hp motor under constant-torque or variable-torque light-overload duty. The 440-480 V three-phase input range covers 460 V nominal systems with tolerance for nominal voltage sag or transformer tap variations. Frame R5 is the physical envelope; NEMA Type1 (IP21) means it is suitable for indoor installation where falling dirt and dripping water are not present. The integrated circuit breaker and fuse simplify panel wiring and reduce the component count in the line side.