What the order code actually specifies
The ABB ACS800-U1-0006-2+P901 is an AC drive from the ACS800-U1 wall-mount series, catalogued under Motors & Motor Controls › Drives › Motor Drives. The -U1 frame designates the cabinet-mount form factor, 0006 is the size/current code within that frame, the trailing -2 carries the voltage-class designation, and +P901 is the appended option code that the buyer must read together with the base string — it is not a separate MPN. The full string ACS800-U1-0006-2+P901 is what the BOM line carries, and what the RFQ should quote against.
Handling note for the panel build
The drive ships at 9.07 kgs, which places it in the wall/cabinet-mount class — a one-person lift onto the backplate, with the usual gland-plate and DIN-layout work left to the wireman. That figure is the only physical number on the record for this MPN; current, voltage, horsepower and overload ratings live in the option-code +P901 documentation and are not surfaced here.
Where this drive class sits
The ACS800-U1 series is the wall-mount branch of ABB's industrial AC-drive line, used to run induction and permanent-magnet motors on standard three-phase industrial supplies, with parameter setting, fault diagnostics and fieldbus options routed through the drive's control panel and option slots. The +P901 option suffix is part of how ABB codes a specific configuration onto that base drive, so the suffix travels with the order code.
Cross-shop against the ACS880-01 peers
The closest same-family cross-shops on file are the ACS880-01-052A-5, ACS880-01-027A-5 and ACS880-01-034A-5. Each lands within roughly a kilo of the 9.07 kgs figure for this drive; only weight and class are listed for those peers.