ABB ACH580-01-025A-2 5.5 kW HVAC drive. ABB ACH580-01-025A-2 is an ACH580 HVAC drive rated 5.5 kW, 25 A, 200-240 V, frame R2. It is designed for air-handling units, chillers, cooling towers, pumps and ventilation fans, with ABB drive control and energy-efficient motor operation.