What the order code actually is
The ABB ACS800-U1-0011-5+B056+P901 is a wall-mount AC drive in the ACS800-U1 series, with the +B056 and +P901 codes as built-in option suffixes on the same string. The base code ACS800-U1-0011-5 is the frame and voltage rating; +B056 and +P901 are factory-fitted options that travel with the unit, so any replacement or quote has to carry the same suffix string — dropping them changes the BOM line.
Mechanical envelope for the panel
Unit weight is 9.07 kg, which puts the drive at the upper end of a one-person lift and is the figure the panel-builder uses for the wall-bracket and lifting plan. ACS800-U1 units mount vertically on a flat wall surface with the cooling clearances called out in the series manual; the 9.07 kg figure is the value to carry into the structural calc, not the shipping weight on the pallet.
Commissioning-side context
On the controls side the ACS800-U1 takes its start/stop and reference from the standard ACS800 I/O and fieldbus options; the +B056 and +P901 codes typically modify what ships from the factory in that area, so the parameter map and any fieldbus card present at startup need to be checked against the build sheet rather than assumed from the base frame. EMC-wise the wall-mount ACS800-U1 is designed for installation close to the motor with the supply filter and PE routing per the series manual; the panel-side EMC outcome depends on the cable screen termination and the cabinet grounding, not on the drive itself.