What this code is
The ABB ACS880-01-034A-5+P944 is a wall-mount motor drive from the ACS880-01 family, ordered under the part number ACS880-01-034A-5+P944 with the +P944 option suffix carried on the base code. It is filed as a Drive under the Motor Drives sub-category, so the BOM line carries the standard ACS880-01 drive designation with the +P944 option appended to the base 034A current rating.
Sourcing posture
For a hot-strip mill or any panel where radiant heat and big-drive EMI are routine, keep the ACS880-01 family selection on the bill and route the +P944 option through the same ABB channel rather than chasing a generic substitute — the frame and control topology carry the immunity that the mill floor depends on.