The ABB 3BBR0000090445 is an ACS880-01-240A-5 drive in Frame Size R8. This is the current-production variant, active on the line. The R8 frame handles the 240 A rating; that's the physical size you need to plan for in the cabinet — panel cutouts, busbar spacing, and cooling duct clearance should match the R8 footprint.
What the frame size tells you
Frame Size R8 is the mechanical envelope for the 240 A rating. It dictates the mounting hole pattern, the busbar lug size, and the minimum enclosure volume for heat dissipation. If you're swapping an older drive into an existing R8 footprint, the bolt pattern and cable entry positions should align. If you're designing a new panel, the R8 dimensions are what you model around.