VW3A7101_Schenider_PRODUCT_吉林易择科技技术发展有限公司

Schneider Electric VW3A7101 is a high‑power resistance braking unit designed for use with Altivar series variable speed drives (VSDs). It enables controlled braking of the motor by dissipating regenerated energy into an external resistor during deceleration to a stop or during generator‑mode operation. The unit is engineered to support heavy‑duty applications, ensuring stable braking performance and thermal protection for the drive system.

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DESCRIBE

Parameters Brand: Schneider Electric Model / Part Number: VW3A7101 Product Type: Resistance Braking Unit (Braking Module) Application: Braking energy dissipation for variable speed drives Compatible Drives: Altivar 61, Altivar 71, Altivar 61Q, Altivar 71Q, Altivar Process ATV900 series; various ATV61/71 models and ATV930 VSDs without braking chopper Rated Braking Power: 200 kW at 400 V Maximum Braking Power: 420 kW Minimum Resistor Value: ~1.05 Ω required for proper operation Thermal Losses: Approx. 550 W Activation Threshold: ~785 V DC ±1% Maximum DC Bus Voltage: Up to 850 V Protection: Integrated thermal protection with temperature probe Protection Rating: IP20 Weight: Approx. 30 kg Typical Operating Position: Vertical Ambient Operating Temperature: –10 °C to 50 °C Ambient Storage Temperature: –25 °C to 70 °C Pollution Degree: 2 Cooling Air Volume: ~100 m³/h Usage: Industrial variable speed drive braking system

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