The Schneider Electric Altivar 21 (ATV21) series variable speed drive, model ATV21HU40N4, is engineered for precise motor control in three-phase applications. This 4 kW (5 hp) drive is designed to manage motor speed and torque, contributing to enhanced operational efficiency and extended equipment life in demanding industrial and commercial settings. It is commonly integrated into systems requiring variable speed operation for pumps, fans, and other machinery.

Technical Details

• Series: Altivar 21 (ATV21)
• Power Rating: 4 kW (5 hp)
• Input Voltage: 380-480V AC, 3 Phase
• Output Frequency: 0-500 Hz
• Control Type: Vector control with voltage/frequency (V/f) control
• Enclosure Type: IP20 (UL Type 1)
• Mounting: Wall-mount or panel-mount
• Communication Protocol: Modbus RTU (standard)

Applications & Compatibility

This variable speed drive is suitable for a wide range of applications including HVAC systems, water pumping stations, and general industrial machinery. Its robust design and control capabilities make it an ideal choice for optimizing energy consumption and performance in centrifugal pump and fan applications, as well as conveyor systems and other variable torque loads.

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 ATV21HU40N4 or contact our technical team for cross-reference assistance with compatible Altivar components.