Reading the build code
The ABB ACS88001077A5+D150+L501 is the +D150+L501 option build of the ACS880-01 low-voltage drive platform, rated 65 A in heavy-duty operation inside an IP21 / UL Type 1 enclosure on frame R5 — the configuration suffix is what the buyer is decoding on the nameplate, not a separate part. The bare base code 077A5 in the ACS880-01 family corresponds to the 65 A HD output class.
What the 65 A HD and IP21 rating actually gate
The 65 A heavy-duty figure is the load-side rating that drives motor sizing and upstream breaker coordination; it is the number to compare against motor FLA and the thermal limit of the cable, not the headline marketing current. IP21 / UL Type 1 is the drip- and finger-safe cabinet-mount rating, so the drive is laid out for a clean control-room or MCC cubicle rather than a washdown aisle or an outdoor hood — the cabinet, not the drive, supplies the sealing. At 22.68 kgs on frame R5, the unit is a two-person lift onto the back-panel and the cabinet needs the mounting pattern and depth for the R5 footprint laid out against the ABB ACS880-01 mechanical drawing.