Line identity
The ABB ACS550-01-072A-4 sits on the Motor Drives line, nested under Drives within Motors & Motor Controls. The listing title and description both name the part as an AC drive from ASEA BROWN BOVERI, so the order code ACS550-01-072A-4 is what the BOM line, panel label and RFQ should all reference. On the bench it reads as a wall-mount or panel-mount AC drive in the ACS550 family — the kind of unit a panel wireman drops into a cabinet beside a contactor block and an EMC line filter, then loops into the motor cable through a gland plate. Handling is the one place the 11.79 kgs figure does work: it is a single-person lift and the cabinet has to carry it, but it is not a two-man rigging job.