ABB ACH550-PD-06A9-4 Three-Phase Variable Frequency Drive

ABB ACH550-PD-06A9-4 is a compact three-phase variable frequency drive designed for 380–480 V AC systems, delivering 2.2 kW (3 HP) to a connected motor. The unit draws approximately 6.9 A under typical load and is configured in Base Drive Frame Size R1, aligning with ABB's ACH550 HVAC family for smaller-scale fan and pump applications. As part of the HVAC-focused ACH550 line, it enables precise speed control of three-phase motors, allowing energy optimization and smoother operation by adjusting output frequency and voltage to match application demand. The PD-06A9-4 suffix identifies this fixed-Voltage, 380–480 V input variant within the ACH550 family, simplifying installation alongside standard electrical and building automation components in commercial and light industrial HVAC installations. The ACH550 platform provides motor protection and diagnostics appropriate for controlled fans and pumps, and its compact form factor supports installation within typical equipment enclosures where HVAC drives are used.