ABB ACH580-01-125A-6 90 kW HVAC drive. ABB ACH580-01-125A-6 is an ACH580 HVAC drive rated 90 kW, 125 A, 500-600 V, frame R7. It is designed for air-handling units, chillers, cooling towers, pumps and ventilation fans, with ABB drive control and energy-efficient motor operation.