The part on the bench
The ABB ACS355-030-03A5-2 sits in the ACS355 machine-build drive family, listed under Motors & Motor Controls / Drives / Motor Drives, and clocks in at 4.54 kgs — a chassis you'd want two hands on when sliding it onto the backplate rather than a one-handed pull. For the procurement reader who arrived on this exact order code, that's the identity question answered: it's an ABB drive, ACS355 series, single part string ACS355-030-03A5-2, and the 4.54 kgs figure is the one that matters when the panel-builder checks cabinet loading before the install.
What the figure does for fit
The 4.54 kgs number is the panel-loading figure, not a selection number — a buyer doesn't spec a VFD by weight, but the controls integrator does need it to verify the backplate can carry it next to an existing ACS310 or ACS320 frame without re-checking the cabinet's mechanical layout.
Sourcing posture
No production-status entry sits on this part's record, so the safe read is to specify it into the BOM against a quoted RFQ and let the supply chain confirm channel and lead time rather than assume anything about active or phased status.