Active infeed converter for low-harmonic regenerative drives
The VW3A7256 is a Schneider Electric active infeed converter (AIC) rated at 430 kW continuous from a 380...440 V three-phase supply, delivering 654 A continuous output current. It is designed for energy regeneration and low-harmonic operation in high-power drive systems.
Power and overload capacity
The converter supports overloads of 1.20× nominal current for 60 s and 1.35× nominal current for 2 s, allowing it to handle transient motor demand without tripping. Output voltage is 650 V DC from a 380...400 V AC supply, or 720 V DC from 440 V AC, matching the DC-bus requirements of Altivar drives in regenerative configurations.
Compliance and environmental ratings
Certified to EN/IEC 61800-5-1 for adjustable-speed drive systems, with pollution degree 2 per EN 61800-5-1. The unit carries environmental classification 3K3, 3C2, and 3S2 per EN/IEC 60721-3-3, covering temperature, chemical, and mechanical exposure in fixed industrial locations. Operating temperature range is -10 to 45 °C without derating, extending to 60 °C with a 2 % per °C derating above 45 °C. Altitude derating applies above 1000 m at 1 % per 100 m up to 3000 m.
Sourcing and lifecycle status
The VW3A7256 is classified as obsolete per Schneider Electric's product lifecycle status. The unit is available through independent surplus and broker channels; quantities and pricing are confirmed at RFQ against the BOM line.