What you're sourcing
The ABB ACS380-040C-04A0-4+K470+N7583+X1677 is an ACS380-family AC drive built up from the base unit with the +K470, +N7583 and +X1677 option codes, ordered as a single configured string so the panel builder receives the drive with those features applied at the factory rather than as field-installed add-ons. It is filed as a Motor Drive under Motors & Motor Controls, which is the right shelf to scan against when you are matching it to a motor BOM line or a retrofit slot in an existing cabinet. At 1.43 kg the unit is light enough that a single technician can handle it during panel build or a swap-out.
Reading the option codes
The +K470 / +N7583 / +X1677 suffix is part of the order code itself, not an accessory shipped loose, so any replacement must match the suffix string exactly to keep the same factory-applied configuration — quoting the base ACS380-040C-04A0-4 alone would arrive stripped of those features.