SCHNEIDER ELECTRIC VW3A7730

Schneider Electric Braking Resistor VW3A7730 Description The Schneider Electric VW3A7730 is a high-quality braking resistor designed for use with the Altivar series of variable speed drives. Its primary function is to dissipate regenerative energy generated during motor deceleration, preventing drive overvoltage faults and ensuring smooth, controlled stopping. The resistor is housed in a robust, ventilated metal enclosure for optimal heat dissipation and protection. Specifications Manufacturer: Schneider Electric Part Number: VW3A7730 Product Type: Braking Resistor Resistance: 100 Ohm Continuous Power Dissipation: 0.1 kW Protection Rating: IP20 Nominal Voltage: Up to 600V Compatibility: Altivar 12, Altivar 31, Altivar 312, Altivar 32, Altivar Machine ATV320, Lexium 32 Application This resistor is essential for applications with high inertia loads or frequent start/stop cycles, such as conveyors, hoisting equipment, centrifuges, and material handling systems, where rapid deceleration is required. Country of Origin Made in Germany. CO2 Impact Opting for this component helps avoid approximately 8.8 kg of CO2 emissions compared to manufacturing a new one, contributing to a more sustainable industrial environment. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ Question?How do I correctly size a braking resistor for my application? AnswerSizing depends on the motor’s power, the load’s inertia, the braking duty cycle, and the desired deceleration time. Always consult the drive’s technical manual for the recommended resistance (Ohm) and power (kW) values to avoid damaging the drive or the resistor. Question?Can I mount the VW3A7730 inside a sealed electrical cabinet? AnswerIt is strongly recommended to mount braking resistors outside the cabinet or in a well-ventilated area. They generate significant heat during operation, and mounting them in a sealed enclosure can lead to overheating and premature failure of both the resistor and other components. Question?What is the function of the thermal switch sometimes found with braking resistors? AnswerWhile this model may not include one, a thermal switch is a safety device that opens the circuit if the resistor overheats. It sends a signal to the drive to stop the braking cycle, protecting the resistor from damage due to an excessive duty cycle or ventilation failure. profideals is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026