The VW3A46161 is a passive harmonic filter from the Altivar accessory family, sized for 11 kW / 15 hp drives across the ATV61, ATV71, ATV630, ATV650, ATV930, and ATV950 ranges. It sits between the line supply and the drive input, knocking down current harmonics to meet IEC 61000-3-4, IEC 61000-3-12, and G5/4 engineering recommendation limits. One filter per drive — no sharing across multiple units. Rated 19 A input / 19.5 A output at 480 V ±10 %, 60 Hz, three-phase. Efficiency hits 98 %, so the 258 W thermal loss figure tells you what to budget for panel ventilation. Class F insulation, IP20 as a standalone unit, IP55 when enclosure-mounted.
THDI and power factor — what the numbers mean
THDI depends on which drive generation you bolt it to. On the older ATV61H, ATV71H, ATV71P, and ATV71W frames at 11 kW / 15 hp, it holds THDI to 10 %. On the ATV61W and the newer ATV630 / ATV650 / ATV930 / ATV950 platform, it pulls that down to 5 %. That's the difference between a borderline installation and one that sails past most utility harmonic limits without an active front end. Power factor correction is load-dependent. At 150 % of line current the filter delivers cos φ of 1 (unity). At full rated current it sits at 0.99, and at 75 % load it drops to 0.85. The takeaway: keep the drive loaded above 75 % to stay in the clean PF band.
Terminals X1-1 through X2-3 accept 0.5 to 10 mm²; the A and B terminals take 2.5 mm². Strip length and torque aren't listed here, but the spring-cage style on the Altivar accessory line typically needs 8 mm strip and a small screwdriver. Mount it close to the drive line input — long cables between filter and drive kill the HF attenuation. Operating ambient from 5 °C to 45 °C with no derating. Above 45 °C up to 60 °C, derate 3 % per °C. Storage in original packaging from -25 °C to 55 °C; transport range extends to 65 °C. Humidity 5 to 85 % non-condensing. Altitude derating kicks in above 1000 m at 5 % per additional 1000 m up to 4000 m.