The Schneider Electric ATV21WU30N4ZH28 is a variable frequency drive (VFD) from the Altivar 21 series, engineered for precise speed and torque control of asynchronous motors. This unit is rated for 3 kW (4 HP) motor output and operates on a 400V AC three-phase power supply. It is commonly integrated into HVAC systems and general industrial machinery requiring variable speed operation.

Technical details

• Series: Altivar 21 (ATV21)
• Power Rating: 3 kW (4 HP)
• Input Voltage: 400V AC, three-phase
• Output Voltage: 400V AC, three-phase
• Enclosure Rating: IP54
• EMC Filter: Integrated
• Control Type: Scalar (V/f) control
• Mounting Type: Wall-mount

Applications & compatibility

This VFD is well-suited for applications such as fan and pump control in HVAC systems, as well as variable speed drives for conveyors, extruders, and other general industrial machinery. Its IP54 rating provides protection against dust and water splashes, making it suitable for environments where moderate protection is required.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric ATV21WU30N4ZH28 or contact our technical team for cross-reference assistance with compatible Altivar 21 series components.