The ABB 3AXD50000814459 is an ACS180-04N-038A-4 LV AC machinery drive module in frame size R4. It delivers 18.5 kW normal-use output at 38 A from a 380-480 V three-phase input, with a frequency range of 47.5 to 63 Hz. That normal-use rating (18.5 kW / 38 A) covers constant-torque loads like conveyors and positive-displacement pumps at full rated speed. For heavy-duty applications — crushers, centrifuges, or any load that demands sustained overload capacity — the drive derates to 15 kW and 32 A. A light-overload use case (variable-torque fans or centrifugal pumps) sits at 18.5 kW / 36 A, splitting the difference between normal and heavy duty. The R4 frame size determines the mounting footprint and the available options slots for fieldbus or I/O expansion cards.
Efficiency is rated IE2, which meets the minimum efficiency standard for variable-speed drives under IEC 61800-9-2 in most regions. No UL or CSA listing appears in the spec record; verify local code acceptance if the installation requires third-party certification.