What landed on the BOM
The ABB ACS880-01-052A-5+P944 is a low-voltage single-drive module from the ACS880-01 wall-mount family, specified for a 3-phase 380-500 V supply and tagged in the part number with the +P944 option build. On the bench and the lift, the unit is 21.32 kg, so plan for a two-person mount or a mechanical assist in the cabinet — it is not a handheld swap.
Frame position in the 380-500 V line
ACS880-01-040A-5 weighs 18.14 kgs one frame down and ACS880-01-065A-5 weighs 23.13 kgs one frame up in the same voltage class, placing the 052A-5+P944 between them on the rated-current spread. The base ACS880-01-052A-5 without the +P944 option is listed at 9.07 kg, so the +P944 suffix is not a software sticker — the option build more than doubles the mass and changes the footprint class; a direct panel-for-panel swap against the base unit is not valid.
Sourcing posture
Sourcing the ACS880-01-052A-5+P944 to the exact +P944 option build is done to order against an RFQ, not from a shelf line; confirm the option code on the RFQ so the build that arrives matches the BOM line, not a base unit with a sticker.