What you're sourcing
The ABB ACS800-04-0140-7+P901 is an ACS800-04 series AC drive from the ABB Drives / Motor Drives line, ordered under part # ACS800-04-0140-7+P901 with the +P901 application option suffix applied at the factory. At 63.96 kg, it sits in the wall-mount single-drive class — large enough that two techs and a hoist handle the swap, not a one-person lift.
Class fit and panel reality
This is an ABB AC drive module in the Motors & Motor Controls › Drives › Motor Drives class, so the buyer is filling a VFD slot, not a soft-starter or servo position on the BOM. The 63.96 kg mass drives the cabinet choice — it expects a wall-mount cubicle with the lifting eye or bracket still accessible, and the gland plate has to clear the heatsink footprint.
Same-class siblings on the bench
If a cross-shop is being weighed on the same BOM line, the natural same-class candidates already on file are the ACS880-01-156A-5 (55.00 kg), the ACS580-01-180A-4 (54.43 kg), and the legacy ACS550-U1-157A-4 (89.81 kg) — all AC drives, all different frame, control platform, and I/O pin-out from the ACS800-04. None is a drop-in: the ACS880 and ACS580 are a generation newer with a different parameter tree and fiber-optic option-slot layout; the ACS550 is an older IP21 wall-mount with its own control board. Treat them as separate generation choices to evaluate, not as substitutes, and confirm the panel cutout, control terminal mapping, and the +P901 macro equivalent before any swap is signed off.