ACS355-03U-31A0-4

The ABB ACS355-03U-31A0-4 AC drive delivers precise motor control for pump and fan applications with minimal overload demand. Rated at 20HP (15kW) and 31A output, this open-type drive handles input voltages from 380-480V, making it ideal for industrial HVAC, water treatment, and material handling systems. The 1.5 overload factor ensures reliable operation under variable load conditions, reducing energy consumption by up to 30% compared to fixed-speed systems. Designed for compact installations, the ACS355-03U-31A0-4 measures 9.61 x 10.24 x 6.65 inches (HxWxD) and integrates seamlessly with ABB’s drive control ecosystem. Its modular design simplifies maintenance and upgrades, while built-in protection features guard against overvoltage, undervoltage, and phase loss. Compatible with standard 3-phase motors, this drive supports both sensorless and sensor-based control modes for applications requiring dynamic response. Key applications include centrifugal pumps, variable air volume fans, and conveyor systems where energy efficiency and operational flexibility are critical. The ACS355 series is engineered for environments requiring robust performance without excessive thermal stress, ensuring long service life with minimal downtime.