What this order code is
The ABB ACS800-U1-0070-5+L503+P901 is a U1-frame ACS800 industrial drive shipped with two appended option codes: +L503 and +P901, which typically denote factory-fitted option sets (interface / auxiliary function modules) on this platform. It catalogs under Motors & Motor Controls › Drives › Motor Drives. Listed weight is 34.02 kgs — at this mass the unit is a two-person lift and needs a cabinet or wall section rated for the static load before mounting.
Where a drive like this sits
Wall-mount AC drives in the U1 frame are typically deployed as stand-alone cabinet drives for single-motor control loops — fans, pumps, conveyors, mixers — where the drive sits outside the main MCC lineup and runs a dedicated motor feeder. The +L503 and +P901 suffixes are option-code suffixes on the order string; they extend the base drive with factory-fitted options rather than field-installed accessories, so the BOM line has to carry them on the PO to receive the configured unit.
Frame and footprint delta vs the current platform
ACS800-U1-0070-5+L503+P901 lists 34.02 kgs, while the current-platform ACS880-01-065A-5 lists 23.13 kgs — a meaningful drop in mass when moving to the newer platform, with corresponding changes to mounting footprint and cooling arrangement that have to be re-checked before a like-for-like retrofit.
Sourcing posture
The option-code suffix structure (+L503, +P901) means a BOM line has to ship the full configured order code on the PO; partial codes against a base drive will not pull the factory-fitted options.