The ABB ACS380‑040S‑12A6‑4 is a compact variable frequency drive (VFD) from the ABB ACS380 series, designed for precise and efficient control of three‑phase AC motors in industrial and machine automation applications. It enables smooth speed regulation, improved process control, and reduced energy consumption for motors in systems such as conveyors, pumps, mixers, material handling equipment, and other industrial machinery.