The ABB ACH580-VCR-027A-4 is a 27 A wall-mount drive in the ACH580 HVAC family, sold as a drive-with-bypass package rather than a bare inverter — the VCR suffix is what tells the panel builder the contactor bypass is integrated on the same chassis. That form factor is the point of the part: HVAC fan and pump panels want a single UL-listed assembly that can hand off to bypass contactor on a VFD trip, so the integrator is not stacking a separate disconnect, contactor, and drive and re-doing the SCCR math.
Ratings a buyer actually compares
Chassis weight is 13.61 kg — wall-mount, single-person lift onto the backplate, but the bypass contactor adds mass over a bare ACH580 inverter and the panel layout has to budget for it.
Where it sits against a sibling
The closest in-family variant is the ABB ACH580-PDR-027A-4+B056 — same 27 A current class, 16.33 kg, no bypass on the chassis. If the existing panel was specified around a non-bypass drive, swapping to the VCR-027A-4 will change the wiring landing pattern and the SCCR work because the integrated bypass contactor is part of the VCR assembly; the two are not drop-in interchangeable. A bare wall-mount inverter in the same frame, the ABB ACH580-01-014A-4 (, 14 A, 6.80 kg), is roughly half the current rating and is not a current-class alternative either.
Sourcing posture
For a panel that was built around a non-bypass ACH580 at the same 27 A rating, the cross-reference question lands at the wiring and SCCR level rather than the order-code level, and the answer is determined by the existing panel drawings — not by swapping suffixes blindly.