The ABB ACS380‑040S‑25A0‑4 is a compact, low‑voltage variable frequency drive (VFD) from the ABB ACS380 series designed for industrial and machinery applications requiring efficient and precise three‑phase AC motor speed and torque control. It provides advanced motor control with both scalar (V/f) and sensorless vector control methods, making it suitable for conveyors, pumps, mixers, extruders, packaging machinery, and other automation equipment.