The Schneider Electric VW3A7757 is a braking resistor designed for use with variable frequency drives (VFDs) to dissipate excess energy during deceleration. This component is integral to VFD systems that require controlled stopping and energy management, preventing overvoltage conditions within the drive. It is part of the Schneider Electric Altivar series, commonly integrated into machinery requiring precise motor control.

Technical details

• Product Type: Braking Resistor
• Resistance: 1.4 Ohms
• Power Rating: 29 kW
• Enclosure Rating: IP23
• Series Compatibility: Altivar (verify specific drive compatibility with manufacturer datasheet)
• Function: Dissipates regenerative energy during motor deceleration
• Application: Used to prevent overvoltage in VFD DC bus

Applications & compatibility

This braking resistor is suitable for applications where VFDs experience significant regenerative braking, such as in elevator systems, crane and hoist applications, and high-inertia loads like centrifuges or large fans. It ensures stable operation of Altivar VFDs by managing energy feedback from the motor.

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 VW3A7757 or contact our technical team for cross-reference assistance with compatible Altivar braking components.