Ratings that govern the selection
The 3ABD00058018-D: The normal-use 45 A output current (In) is the line to match against your motor's full-load amps for standard variable-torque applications like pumps and fans. If your load is constant-torque — conveyors, extruders, positive-displacement pumps — the heavy-duty rating of 38 A (IhD) at 18.5 kW is the binding limit. Light-overload duty at 43 A (IlD) covers occasional peak demand but not continuous. Input accepts 380-415 V three-phase at 47.5-63 Hz, covering most global mains without a transformer tap change. IP20 degree of protection means this drive is intended for clean, dry electrical rooms or inside a panel. It's not rated for washdown, dust, or outdoor installation without an additional enclosure. Open-type NEMA enclosure — consistent with IP20, no integral disconnect or bypass. Plan for external branch circuit protection per local code.