ABB ACH401-B00522 is a 400 V industrial AC drive from ABB's ACH400 family designed for precise motor speed control in normal-duty, three-phase applications. It accepts a 380–480 V AC input at 50/60 Hz and operates with a switching frequency around 3 kHz. The 400 V ACH400 range, which includes ACH401 variants, comes in frame sizes R1 through R4 and supports nominal motor power ratings from 3.0 to 50 Hp. This model integrates into ABB's general-purpose drive ecosystem, enabling reliable, variable-speed control for pumps, fans, conveyors, and other common industrial loads.
