The ABB 3ABD00057516 is an ACS380 series LV AC machinery drive module — a compact variable-frequency drive sized for a 4 kW normal-duty induction motor on a 380-480 V three-phase supply, delivering 9.4 A continuous. For heavier cyclic or high-start-torque loads, the heavy-duty rating drops to 3 kW at 7.2 A, which is the figure to use when sizing for a conveyor or crusher with frequent starts. The drive carries IE2 efficiency classification and is protected to IP20 for panel-mount installation.
The normal-duty output (Pn 4 kW, In 9.4 A) applies for light-overload profiles — pumps, fans, or constant-torque loads with infrequent starts. The heavy-duty line (PhD 3 kW, IhD 7.2 A) governs for cyclic or high-start-torque applications; if your motor nameplate draws 8 A at full load, you need to spec the heavy-duty current rating, not the normal-duty number.
Sourcing and RFQ posture
The frame size R1 and IP20 enclosure match standard panel-mount VFD footprints; verify gland-plate clearance for the 380-480 V input and motor cables. No pin-compatible alternative exists within the ACS380 family at the same duty ratings — the R1 frame is specific to this output range.