Configured drive for the panel builder
The ABB ACS355-03U-04A1-4+J400+K452 is a configured machine-builder drive from the ACS355 family, ordered at the 1.5 kW rating and tagged with the +J400 and +K452 factory option suffixes that pin the unit's installed feature set at the build line.
What 1.5 kW and 1.36 kgs mean on the bench
At 1.5 kW the drive targets fractional-horsepower induction or permanent-magnet motors on conveyors, fans, pumps, and small hoists where a compact ABB inverter is the specifier's default. The 1.36 kg chassis is the figure a wireman handling a swap-out spare actually carries to the cabinet; it confirms the IP20 book-format mounting footprint rather than a through-wall or module-format variant, so existing ACS355 DIN-rail cutouts and gland plate entries in a retrofit panel accept it without rework.
Sourcing posture for the BOM line
With the configured code called out verbatim, this drive is specified into the BOM by its full suffix string — the +J400 and +K452 options must travel with the order to keep the panel layout, fieldbus mapping, and commissioning macro aligned with the original submittal drawings.