ABB ACH550-UH-038A-4 25 HP HVAC VFD, 380-460V, 3-Phase AC Drive

The ABB ACH550-UH-038A-4 is a dedicated HVAC variable frequency drive engineered to deliver reliable, energy-efficient control of 25 HP (18.5 kW) motors in modern building systems. Designed for streamlined integration, the drive supports intelligent airflow and pumping performance while reducing operational costs and improving system responsiveness.

Why It Helps
With advanced HVAC-specific software, built-in PID control, and automatic energy-optimization features, the ACH550 enables precise, stable operation across ventilation, circulation, and air-handling equipment. Its intuitive interface simplifies configuration, while industry standard communication options enhance compatibility with building automation systems.

Key Highlights

• HVAC-optimized programming provides ready-to-use application macros for fast setup and dependable daily operation.

• Integrated diagnostic tools, including fault logging and a multilingual display, support quick troubleshooting and minimal downtime.

• Built-in harmonic mitigation improves power quality and protects upstream equipment during demanding loading conditions.

• Sensorless vector and V/Hz control options offer stable torque delivery and smooth motor performance across a range of HVAC applications.

System Compatibility
The drive is designed for 380–460 VAC, 3-phase motor systems up to 25 HP and 38 A, making it suitable for pumps, fans, compressors, and other HVAC equipment using standard industrial motors.

Applications
Ideal for commercial buildings, mechanical rooms, and HVAC installations requiring energy-efficient speed control of fans and pumps. The ACH550-UH-038A-4 provides long-term reliability and optimized performance for heating, ventilation, and air-handling systems.