What this AIC delivers and where it fits
The VW3A7276 is a 540 kW active infeed converter (AIC) designed for 500-690 V AC three-phase networks. It's the front-end power stage for energy regeneration and low-harmonic operation in a Schneider Active Front End system, feeding DC bus voltages up to 1100 V DC from a 690 V AC supply. Continuous output current is 481 A across the full voltage range, with overload capability of 1.2× nominal for 60 seconds or 1.35× for 2 seconds. Input power capability scales with line voltage: 390 kW at 500 V, 468 kW at 600 V, 536 kW at 690 V. Built-in unit, IP00, forced-convection cooled — the 7730 W thermal loss demands 2400 m³/h airflow over the power circuit and 260 m³/h for the control section, with a minimum 2000 cm² air flow surface. This is not a standalone cabinet; it's a panel-mounted component that needs engineered ventilation.
Lifecycle reality — obsolete, sourced on request
Schneider Electric lists the VW3A7276 as obsolete. For production or MRO requirements, the unit is sourced through independent distribution channels — availability and pricing confirmed at RFQ against the specific line-item need. Compliance documentation covers EN/IEC 61800-5-1 for adjustable-speed drive safety. Environmental classification is 3K3/3C2/3S2 per EN/IEC 60721-3-3, and pollution degree 2 per EN 61800-5-1. Storage temperature range is -25 to 70 °C.
Dimensions and integration constraints
Footprint is 1110 mm wide × 1390 mm high × 377 mm deep. Operating position must be vertical within ±10 degrees. Shock resistance is 4 gn for 11 ms; vibration tolerance is 1.5 mm at 3-10 Hz and 0.6 gn at 10-200 Hz, per EN/IEC 60068-2-6. Communication bridge option card provides one RJ45 for Modbus and one male SUB-D 9 on RJ45 for CANopen. The line current draw is 450 A at all rated voltages.