This ABB ACS880-01-096A-5+D150 (order code 3ABD00037867-D) is a wall-mounted LV AC industrial drive rated 55 kW normal use (96 A) and 45 kW heavy-duty (77 A) on a 380–500 V three-phase supply. Frame size R6, IP21, NEMA Type 1 enclosure — sized for a 55 kW motor in normal duty, but the heavy-duty curve tells you it handles 45 kW continuous in a tougher load profile. The 47.5–63 Hz input frequency range covers 50 and 60 Hz grids without derating.
The normal-use output (55 kW, 96 A) is the rating for typical variable-torque loads like centrifugal pumps and fans. The heavy-duty rating (45 kW, 77 A) governs constant-torque applications — conveyors, positive-displacement pumps, extruders — where the drive must deliver full torque across the speed range. The light-overload rating (55 kW, 91 A) is essentially the same as normal use here, so the real choice is between normal and heavy-duty curves. IP21 and NEMA Type 1 mean it's for indoor, dry locations — not for washdown or wet-well environments. Frame size R6 determines mounting hole pattern and gland-plate dimensions; verify against the existing cutout if retrofitting.