What the order code covers
The ABB ACS355-03U-08A8-4+J400+K451 is the ACS355 micro drive family on a 3-phase 380-480 V input stage, shipped from the factory with the +J400 and +K451 option suffixes already integrated into the build rather than added as loose accessories. Because the +J400 and +K451 codes are part of the MPN string itself, the buyer is ordering a configured ACS355, not a base unit with field-installed kits — that distinction matters when the panel-builder's wiring diagram or the commissioning engineer's parameter sheet is locked to a specific suffix combination. It sits in the Drives sub-category under Motors & Motor Controls, which is the standard placement for ABB general-purpose micro drives used to run small three-phase induction motors on industrial machinery.
Voltage class and what it drives
The 3~380-480 V input designation places this drive on the standard 400 V three-phase industrial supply used across most European and IEC markets, so it pairs directly with 400 V induction motors sized to the drive's 08A8 current class without a step-up transformer. For a controls integrator selecting the drive, the headline that drives fit is the suffix combination — input voltage plus the factory option string — rather than any current or horsepower number, because no continuous or peak current rating appears on this listing's own spec set.
Panel-side handling
At 1.36 kgs the unit is a one-hand lift for the panel-builder, so mounting location inside the cabinet is a layout choice rather than a structural one — typical ACS355 installations place the drive upright on the backplate with clearance above and below for the cooling airflow path. The same 1.36 kgs figure shows on the adjacent ACS310-03U-02A6-4 and ACS310-03U-06A2-4 listings, which is consistent with the shared micro-drive form factor across the ACS310 and ACS355 families and means a panel cutout planned for one of those siblings will physically accept this drive without rework.