What this line is
The ABB ACS800-104-0460-5+C126+E205+Q950 identifies one configured build of the ACS800-104 inverter drive; the suffix string (C126, E205, Q950) tags factory option selections on top of the base frame.
Where it sits against same-function peers
Cross-shop candidates in the ABB drive family at this current class include the ACS880-01-156A-5 at 55.00 kgs, the ACS550-U1-157A-4 at 89.81 kgs, and the ACS580-01-180A-4 at 54.43 kgs — all three are wall-mount / book-form drives in the same Motor Drives line, while the ACS800-104 is the heavier cabinet-platform build. The mass gap is the visible tell that they are not drop-in interchangeable: same family, different mechanical and thermal envelope, and a panel laid out around an ACS880-01 frame will not accept an ACS800-104 without reworking the cabinet.