ABB ACS320-03U-15A6-4 HVAC Variable Frequency Drive

ABB ACS320-03U-15A6-4 HVAC Drive Inverter is a compact, three‑phase variable‑frequency drive built for HVAC OEM applications such as pumps and fans. The 03U-15A6-4 variant is designed for 380–480 V three‑phase supply and carries a 15 A output current rating in frame size R3, making it suitable for mid‑scale fan and pump duties in building systems. As part of ABB’s ACS320 HVAC family, this microdrive includes HVAC‑specific features and is marketed for use with pumps, fans, exhausts, and other HVAC components. A notable integration capability is built‑in BACnet MS/TP support, enabling direct communication with building management systems for centralized control and monitoring. The official ABB part number for this model is 3AUA0000039664, aligning with ABB’s labeling for HVAC OEM motor control solutions.