ABB ACH580-01-06A1-6 4 kW HVAC drive. ABB ACH580-01-06A1-6 is an ACH580 HVAC drive rated 4 kW, 6.1 A, 500-600 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.