The ABB 3AXD50000301881 is an ACH580-01-09A0-6+B056 LV AC wall-mounted drive built for HVAC duty. It delivers 9 A continuous output (normal use) on a 500-600 V three-phase input, with a light-overload rating of 7.5 Hp. The IP55 / NEMA Type12 enclosure suits it for washdown or dusty environments without a separate cabinet. Frame size R2 keeps the footprint compact for wall-mounting.
The 9 A normal-use output current is the continuous rating at 50/60 Hz — this is the number to match against your motor FLA, not the 7.5 Hp light-overload figure. The light-overload 7.5 Hp applies for variable-torque loads (fans, pumps) where the drive can deliver higher current for short periods. Input voltage range of 500-600 V covers 480 V and 575 V nominal systems; confirm your supply phase-to-phase voltage falls within that band. The IP55 / NEMA Type12 enclosure means the drive is sealed against dust and low-pressure water jets — no need for an additional enclosure in most indoor HVAC mechanical rooms, but outdoor installation still requires a weather hood.