Where it sits in the panel
The ABB ACS180-04N-01A8-4 is an LV AC machinery drive module sized for 3-phase input across 380... 480 V, with a 0.98 power factor figure that lets the upstream feeder and breaker be picked from the continuous current rather than re-rated for a poor power factor. Frame R0 is the smallest ABB ACS180 footprint, which is the headline decision for a cabinet retrofit where DIN real estate is tight. Communication is MODBUS only. No PROFINET, no EtherCAT, no Ethernet/IP expansion is in evidence for this build, so any fieldbus selection is locked at the order code level — confirm the controller's native protocol before pulling this MPN into a panel.
Mounting and panel-side fit
The module footprint is 2.756 in wide by 8.228 in tall, with a 5.630 in depth — it is the narrow R0 module form factor, intended to mount as a discrete device rather than side-by-side on a shared backplane. Enclosure rating is IP20, open type. The drive needs to live inside an enclosure with a suitable protection class for the environment; it is not a field-mountable device.
Sourcing posture
The ACS180-04N-01A8-4 is specified into the BOM as a current ABB ACS180-series part, supplied to order against an RFQ. No alternate MPN, official successor, or phase-out notice is in evidence for this order code, so cross-reference work has to be handled as a fresh RFQ — pull the exact order code, the input voltage band, and the R0 frame into the request so the quote line is unambiguous.