What it is, and where it lands
The ABB ACS580-01-088A-4 is a wall-mounted frequency converter sized for 380... 480 V three-phase supplies at 50/60 Hz, with two analog inputs and two analog outputs on the control side and an IP21 enclosure rating. Mechanical envelope is 29.5 cm x 20.3 cm x 73.2 cm at 28.3 Kg unit weight, shipping mass 30 Kg — a frame that two people handle cleanly and that drops onto a cabinet backplate without a lifting rig. Mounting type is wall-mounted, which keeps the drive off the cabinet floor and leaves the cable entry clear for top or bottom gland plates.
Reading the key ratings for fit
50/60 Hz frequency coverage means the same drive handles both mains frequencies, which matters when a plant runs mixed-source equipment or ships product internationally. IP21 is a drip-protected rating — adequate for an indoor control room or a cabinet with a closed front, but not for washdown or outdoor mounting without an additional enclosure. Two analog inputs and two analog outputs cover the typical speed reference and process feedback loop on a pump, fan, or conveyor; if the application needs more analog channels, plan a fieldbus option card rather than stacking another drive.
Cross-shop: the larger-frame sibling in the same family
The ACS580-01-246A-4 sits in the same wall-mount ACS580-01 series at the same 380... 480 V three-phase input and IP21 rating, but steps up to a 69 Kg frame in a 39.3 cm x 30.0 cm x 96.5 cm enclosure — that footprint class change is the procurement-relevant difference for a panel cut-out or a lifting plan.