What shows up at the panel
The ABB ACH580-01-023A-4+K452 is the configured wall-mount build of the ACH580-01 family — same 023A-4 base frame that handles the 15 HP motor class, but ordered with the +K452 option code, so the BOM line is locked to this suffix and not the bare 023A-4 string. Unit weight is 9.53 kg on the configured build, which is the number the panel layout has to clear and the number the rigger has to lift — not the base-frame figure.
Why the configured unit weighs more than the base frame
Side-by-side with the base ACH580-01-023A-4 at 6.80 kg, this +K452 build lands at 9.53 kg on the same frame. The base and the 014A-4 both weigh 6.80 kg, so the delta is option mass, not a stretched enclosure. The 014A-4 sits at 6.80 kg on the same frame size, which confirms the +K452 build is the same enclosure, just optioned up — not a stretched frame with a wider footprint. The VCR-027A-4 in the catalogue is a different sub-family at 13.61 kg; it is not a cross-shop candidate for a panel cut around the ACH580-01-023A-4 footprint, so the comparison stops at family boundary.
Sourcing posture
The ABB ACH580-01-023A-4+K452 sits in the Motors & Motor Controls / Drives / Motor Drives line under the ABB brand channel, and is specified into the BOM by exact order code including the +K452 suffix — quoted to order against an RFQ rather than picked off the shelf.
Drop-in question for an existing ACH580-01-023A-4 panel
A panel specified around the bare ACH580-01-023A-4 has to be re-checked before swap: the +K452 build is 9.53 kg versus 6.80 kg for the base frame, the option stack changes the terminal layout, and any fieldbus mapping the integrator wired for the base unit needs verification against the configured BOM line.