The VW3A4602 is a passive filter from the Altivar accessory line, sized for 10 A continuous current at 400 V three-phase, 50 Hz. It is designed to reduce current harmonics on specific ATV61 and ATV71 variable-speed drives — one filter per drive, matched to the motor power rating. The THDI it delivers depends on the drive model: 10 % for the ATV61WU40N4 (4 kW/5 hp) and ATV61WU55N4 (5.5 kW/7.5 hp), and 16 % for most other listed combinations including the ATV61HU40N4, ATV71HU40N4, and ATV71PU40N4Z, among others. That spread means the filter's harmonic performance is not a single number — it is tied to the specific drive-motor pair, so verify against your installed drive before specifying.
The filter is a passive device — no control wiring, no power supply beyond the line input. It connects via a terminal block accepting up to 16 mm² conductors, which is generous for the 10 A rating and simplifies paralleling into the drive input. The IP20 enclosure is suited for clean indoor panel environments; mount it close to the drive line input to keep the filtered path short. Ambient temperature derating applies above 40 °C (3 % per °C up to 55 °C), and altitude derating above 1000 m (5 % per 1000 m up to 4000 m).
Efficiency is 98 %, so the filter adds negligible thermal load to the cabinet. The power factor correction characteristic varies with load: cos φ reaches 1 at 150 % of line current, 0.99 at 100 %, and 0.85 at 75 %. That means the filter is most effective at full or overload conditions — at light load the displacement power factor drops, which is typical for passive filters without active switching.