What shows up on the BOM line
The ABB ACS880-01-021A-5+K475+Q973 is a wall-mount drive out of the ACS880 series, factory-configured with the +K475 and +Q973 option codes that distinguish it from the base 021A-5 frame. Procurement sees this code when the panel BOM is frozen against the optioned configuration, not the bare 021A-5. Mass on the listing is 4.54 kgs. That is the same figure carried by the 11A0-5 sibling in the family, which matters when you are sizing a spare slot in an existing cabinet or planning a line-down pickup — not because drive selection turns on grams, but because a field service tech carrying the spare up to a mezzanine wants to know what they are lifting.
Frame versus siblings in the ACS880-01 family
Three siblings live on the same wall-mount line. The ACS880-01-11A0-5 carries the same 4.54 kgs figure as the optioned 021A-5+K475+Q973, while the base ACS880-01-021A-5 (no +K475/+Q973) lists 7.71 kgs and the ACS880-01-07A6-5 lists 6.35 kgs. The 11A0-5 matching the optioned 021A-5+K475+Q973 on mass is the one worth pulling for cross-reference work; the heavier base 021A-5 and 07A6-5 are different current frames and cannot be treated as a like-for-like drop-in without checking the rating, not the package.
Panel-side handling notes
Wall-mount ACS880-01 frames mount through the standard cabinet cut-out, with the option codes typically adding internal hardware (brake chopper, filter, comms) rather than changing the footprint. Cable entry, gland plate and EMC grounding practice follow the ACS880-01 installation guide for that frame — the option codes rarely move the gland pattern, but they do shift the EMC profile because of the internal filter stages they bring in. Keep the motor cable shield bonded at both ends, short pigtails, and route the control wiring away from the power terminations to keep the option-card side clean. Commissioning on the optioned unit follows the ACS880 primary control program; +K475 and +Q973 show up as enabled option slots in the parameter tree, and the drive will flag a mismatch if the parameter set does not see the hardware the factory fitted. Panel-oem wiremen should not be field-fitting the option boards — these are factory-installed and any swap is a return-to-factory or replacement unit, not a panel-side repair.