The Schneider Electric Altivar 21W (ATV21W) variable speed drive is engineered for precise control of three-phase asynchronous motors within HVAC applications. This specific model, the ATV21WD37N4, is designed to manage motors up to 37 kW (50 HP), offering robust performance for demanding pump and fan operations. Its integrated features ensure efficient and reliable motor speed regulation.

Technical Details

• Series: Altivar 21W (ATV21W)
• Motor Power Rating: 37 kW
• Motor Horsepower Rating: 50 HP
• Input Voltage Class: 380-400V AC (derived from the '37N4' suffix, common for this voltage range in Schneider Electric part numbers)
• Control Type: Variable Frequency Drive (VFD)
• Motor Type Compatibility: Designed for three-phase asynchronous motors
• Enclosure Type: IP20 (standard for this series, verify with datasheet for specific model variations)
• Mounting: Typically designed for panel mounting (verify with datasheet)

Applications & Compatibility

This variable speed drive is a suitable component for building automation systems, particularly in commercial and industrial HVAC installations. It is commonly employed to control the speed of pumps and fans in air handling units, chillers, and cooling towers, optimizing energy consumption and system performance. Its robust design ensures reliable operation in environments requiring precise motor speed management.

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 ATV21WD37N4 or contact our technical team for cross-reference assistance with compatible Altivar series components.