The ABB ACS180-04N-05A6-4 is an LV AC machinery drive module built around a 380–480 V three-phase input with a 3.9 kV·A apparent-power output, sized into the smaller end of the ACS180 family where panel space is the binding constraint. It carries frame size R1 in a 70 mm wide × 220 mm tall × 143 mm deep module footprint, so the panel builder can plan a single DIN-row cut-out and leave the surrounding wiring channels uncluttered; the open-type IP20 enclosure then dictates that the cabinet itself supplies the sealing and the cooling air. The efficiency class sits at IE2 on the source listing, which is the EU regulatory floor for fixed-speed motor-driven systems — adequate where the application is a simple V/Hz pump or fan and not the spec target where IE3 or IE4 has been written into the project standard.
Where it sits on the line
Open-type IP20 means the module is intended for cabinet mounting, not field mounting — the cabinet has to deliver the IP54 or higher sealing if the surrounding area is dusty or washdown, and the surrounding enclosure has to dissipate the waste heat that an open chassis can no longer shed on its own.