The Schneider Electric Altivar 21HD (ATV21HD) variable speed drive is engineered for variable torque applications, specifically targeting centrifugal pump and fan systems. This drive, identified by the model number ATV21HD45N4, is designed to optimize energy consumption and provide precise motor control in HVAC equipment and other demanding industrial environments. Its robust construction and advanced features contribute to reduced installation complexity and enhanced operational efficiency.

Technical Details

• Series: Altivar 21HD (ATV21)
• Motor Power Rating: 45 kW (60 HP)
• Input Voltage: 400-460V AC, 3-Phase
• Output Frequency: 0-500 Hz
• Control Type: Sensorless Vector Control
• Enclosure Type: IP20
• Mounting: Wall-mount or Panel-mount
• Communication Protocol: Modbus RTU (standard)

Applications & Compatibility

This drive is ideally suited for variable torque loads commonly found in building automation, HVAC systems, and industrial ventilation. Applications include air handling units, exhaust fans, chilled water pumps, and cooling tower fans. The ATV21HD series is designed for seamless integration into control systems requiring precise speed regulation and energy savings.

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 ATV21HD45N4 or contact our technical team for cross-reference assistance with compatible Altivar components.