ABB ACS880-304-0820A-7+A018 976 kW diode supply module. ABB ACS880-304-0820A-7+A018 is a current air-cooled ACS880-304 diode supply module rated 976 kW DC and 817 A at 525-690 V AC, using D8T. It converts three-phase AC to a common DC bus for non-regenerative multidrive systems. Typical applications include conveyors, cranes, paper machines, metals and cement lines, mining systems and marine auxiliary drives. This is a cabinet-building component, not a complete cabinet.