The Schneider Electric VW3A7104 is a resistance braking unit designed for integration with variable speed drives. This unit is engineered to dissipate excess energy generated during motor deceleration, contributing to smoother system operation and preventing drive overvoltage faults. It is commonly found in applications requiring precise speed control and dynamic braking capabilities.

Technical details

• Series: VW3A7 (part of the Altivar accessory range)
• Rated Power: 400 kW
• Voltage Rating: 690 V
• Maximum Braking Power: Up to 900 kW (peak)
• Function: Dissipates regenerative energy from the motor back into a resistive load.
• Compatibility: Designed for use with Schneider Electric Altivar variable speed drives that support external braking resistors. Specific drive model compatibility should be verified against the drive's technical documentation.
• Enclosure Type: Typically designed for panel mounting; specific dimensions and IP rating should be confirmed via datasheet.
• Connection Type: Screw terminals for power and control connections.

Applications & compatibility

This resistance braking unit is suitable for demanding industrial applications where significant regenerative energy is produced, such as those found in heavy machinery, material handling systems, and high-inertia loads. It is particularly beneficial in applications like crane and hoist systems, winders, and large conveyor systems that require rapid deceleration and precise control.

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 VW3A7104 or contact our technical team for cross-reference assistance with compatible Altivar drive components.