What lands on the BOM line
The ABB ACS880-01-04A6-2 is a single-drive module from the ACS880-01 wall-mount family, the compact end of the ACS880 series that fills the low-voltage AC drive slot in industrial cabinets. It carries the ASEA BROWN BOVERI marking and is filed in the Drives category under Motor Drives. Listed weight is 5.90 kgs, which is light enough for one tech to lift into a cabinet but heavy enough that the mounting plate and gland-plate arrangement should be sized for that mass before the drive is unboxed.
Why a rolling-mill drive desk looks at it
On a hot-strip mill the small frame sizes earn their slot because they can sit in the auxiliary MCC cubicles next to the megawatt drives and still take the radiant heat off the back wall — the ACS880-01 builds were aimed at that cabinet-row ambient rather than the roll-gap environment. For strip-tension loops and auxiliaries like payoff reels, bridle rolls, and side-trimmers, this frame size is the common choice because the drive family is known for clean torque control at low speed.