What ships under this string
The ABB ACS800-11-0100-3-L502-L503-N673-P904-R700 is the 100HP frame of the ACS800-11 low-harmonic regenerative drive family, with the -L502 / -L503 / -N673 / -P904 / -R700 plus-code suffix string carried verbatim into the order line. The plus-codes on an ACS800-11 string define the control panel, I/O, comms, and brake-chopper options fitted at the factory, so two units that differ only in the suffix tail are not the same BOM line — verify the suffix string matches the nameplate on the unit being replaced before releasing a purchase order.
Sourcing posture
The ACS800-11 family sits between the legacy ACS550 general-purpose line and the current ACS880 platform, and the -0100 frame with this suffix string is supplied through the ABB channel and the independent surplus network — quote the exact order code against an RFQ so the suffix-codes are matched, not defaulted.
Cross-shop context (not a drop-in)
The ACS880-01-156A-5 and ACS580-01-180A-4 are the current-generation ABB drives in the same horsepower band; either is the right successor family for a new install, but neither is a like-for-like replacement for the ACS800-11 regenerative topology without a topology review.