ABB ACS880-204-0077A-5 66 kW IGBT supply module. ABB ACS880-204-0077A-5 is a current ACS880-204 air-cooled IGBT supply module rated 66 kW DC and 77 A at 380-500 V AC, using R4i + WFU-22. It converts the incoming three-phase AC supply to a controlled common DC bus for coordinated multidrive systems. Typical applications include cranes, conveyors, winders, paper machines, metals lines, marine systems and high-performance process machinery.