The Schneider Electric VW3A7803 is a braking resistor designed for use with variable frequency drives (VFDs) to dissipate excess energy generated during motor deceleration. This component is crucial for protecting VFDs from overvoltage conditions, particularly in applications with frequent braking cycles or high inertia loads. It is engineered to handle significant power dissipation, ensuring the safe and reliable operation of your automation systems.

Technical details

• Product Type: Braking Resistor
• Manufacturer Series: Altivar (implied by VW3 prefix, common for Schneider Electric VFD accessories)
• Resistance: 25 Ohms
• Power Rating: 9.8 kW
• Enclosure Rating: IP20 (Protected against solid objects greater than 12.5mm, no protection against water)
• Functionality: Dissipates regenerative energy from VFDs to prevent overvoltage
• Application Context: Typically used in conjunction with Schneider Electric Altivar series VFDs

Applications & compatibility

This braking resistor is commonly employed in applications requiring dynamic braking capabilities, such as material handling systems, elevators, cranes, and high-speed machinery where rapid deceleration is necessary. It ensures compatibility with Schneider Electric VFDs that support external braking resistors, helping to manage braking torque and prevent system faults.

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 VW3A7803 or contact our technical team for cross-reference assistance with compatible Altivar VFD components.