Drive selection memo — 18.5 kW, Frame R3
The ABB ACS530-01-039A-4+X1645 (3ABD00046307) is an 18.5 kW variable frequency drive in a Frame R3 enclosure, rated for 38 A normal-use output on 380–480 V three-phase supply. The 38 A figure is the continuous current the drive delivers to the motor under rated conditions — size the motor branch circuit and upstream protection for at least that ampacity. Efficiency class IE2 is the baseline for this generation; it meets the minimum standard for most industrial installations in regions where IE2 is the regulatory floor for fixed-speed applications.
Wall-mounted installation with IP20 protection means the drive is suited for clean, dry electrical rooms or enclosed panel environments — no washdown or outdoor exposure without a separate IP54/NEMA 12 enclosure. The 47.5–63 Hz input frequency range covers both 50 Hz and 60 Hz grids globally, so no hardware change is needed when moving between regions. Light-overload duty is rated at 36.1 A, slightly below the normal-use 38 A; use the normal-use figure for continuous-duty pumps and fans, and the light-overload figure only if the application profile specifies it.