What it is
The ACS800-U11-0120-5+K466 is an AC drive classed under Drives → Servo Drives & Controls and identified on the nameplate by part # ACS800-U11-0120-5+K466. The +K466 suffix is the factory-applied application option, so the BOM line is locked to ABB's order string. It's the kind of unit you specify when an existing ACS800-U11 cabinet needs a like-for-like replacement rather than a redesign — the form factor, control harness, and fieldbus slice are the ones the surrounding panel was wired around.
Where the +K466 option family sits in the ACS800 line
The +K466 suffix is shared across the ACS800-U11 frame, which is what makes the 0120 current code interchangeable with the rest of that family at the option, harness, and fieldbus level — only the current frame differs between -0040 and -0120. Sourced to order, the same factory option set is available, so a panel built around the smaller frame can be re-rated by stepping up the current code without re-engineering the control wiring. Mounting footprint follows the ACS800-U11 cabinet depth — confirm the cabinet interior depth against the frame drawing before specifying, because the +K466 option card stack adds to the depth envelope on top of the base unit.
Sourcing posture
The ACS800-U11-0120-5+K466 ships from ABB's authorized regional channels; the same factory-build unit also moves through APAC and European inventories with identical firmware and option set. Submit against an RFQ to confirm regional availability and channel pricing.