What the order code actually is
The ABB ACS800-01-0020-3+B056+E202+P901 is a wall-mount low-voltage motor drive from the ACS800-01 family, ordered here with the +B056, +E202, and +P901 option codes appended to the base 20 A, 3-phase frame. It lives in the Motor Drives category under Drives / Motors & Motor Controls in the ABB catalogue structure, and the title line on the spec sheet reads it out as an ASEA BROWN BOVERI drive. The +B056 suffix marks the IP55 / dust- and water-jet-protected enclosure option for the wall-mount frame, +E202 designates the EMC filter configuration for the 2nd environment (industrial) on the line side, and +P901 specifies the control panel / starter language and documentation pack that ships with the unit. These three suffixes are what make this order code a specific BOM line rather than a generic 20 A ACS800-01 — drop a different suffix set and you get a different EMC profile, a different enclosure rating, and a different commissioning print. Net mass for the configured drive is 6.35 kg — a single technician can lift it into the panel, but the cabinet still has to be specified for the 6.35 kg point load at the mounting flange, and the cooling clearances on the ACS800-01 frame have to be respected or the thermal derating kicks in well before the nameplate current.
Where it lands on the line
The ACS800-01 frame is the wall-mount branch of the ACS800 family for direct-on-line three-phase induction and permanent-magnet motors. The +E202 suffix sets the EMC filter for the 2nd environment (industrial) on the line side, which matters when the drive lives near an ACS800 multidrive or a large thyristor rectifier. Mounting is the same wall-mount pattern the rest of the ACS800-01 range uses, so panel builders can keep using the same cutout template and the same gland plate layout for spares. The 6.35 kg mass means no lifting fixture is required on the cabinet door, but the +B056 enclosure upgrade tightens the seal around the gland plate and the heatsink fins — derating the nameplate current is the usual consequence of pushing that enclosure into a high-ambient cubicle, and the spec sheet's thermal curve is the only place that gets decided.
Closest peer in the same footprint
The ABB ACS880-01-07A6-5 is the natural successor-frame candidate in the same Motor Drives category, and the ledger shows it carrying the same 6.35 kg mass as the ACS800-01-0020-3 build — so the cabinet mounting point loads do not change and the gland plate pattern matches. It is not the same drive, but it is the same wall-mount package, which is the question a panel builder actually asks first when an obsolete unit has to be replaced without re-engineering the cubicle.