The Schneider Electric Altivar 21W (ATV21) variable speed drive, specifically the ATV21WD45N4C model, offers robust motor control for AC induction motors. This drive is designed for applications requiring precise speed regulation and energy savings, commonly found in HVAC systems and industrial machinery. The "WD" designation indicates a wall-mounted enclosure, and the "N4" signifies a 480V power supply.

Technical Details

• Series: Altivar 21W (ATV21)
• Voltage Rating: 480V AC
• Motor Power Rating: 45 kW (60 HP)
• Enclosure Type: Wall-mounted (WD)
• EMC Filter: Class B
• Control Type: Variable Frequency Drive (VFD)
• Discontinuation Status: Discontinued, End-of-Service December 31, 2020
• Communication Protocol: Refer to manufacturer datasheet for specific supported protocols.

Applications & Compatibility

This drive is well-suited for variable torque applications such as fan and pump control in commercial buildings and industrial process systems. Its robust design and Class B EMC filtering make it suitable for environments where electromagnetic interference is a concern. While discontinued, it remains a viable option for maintaining existing installations or for projects where its specific capabilities are 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 ATV21WD45N4C or contact our technical team for cross-reference assistance with compatible Altivar series components.