The VW3A46141 is a passive harmonic filter designed to reduce current harmonics from Altivar variable-speed drives. It is a line-side filter, not a motor dV/dt or sine-wave output filter — its job is to bring the drive's input current distortion down to levels compliant with IEC 61000-2-4, IEC 61000-3-4, IEC 61000-3-12, and the UK G5/4 engineering recommendation. It mounts between the mains supply and the drive, one filter per drive, and is sized for a 7.5 kW / 10 hp motor load across the Altivar 61, 71, 630, 650, 930, and 950 families in their wall-mount variants.
Rated at 14 A input / 14.5 A output on a 480 V ±10 % three-phase supply at 60 Hz ±2 %. The 14 A input rating governs the upstream protection sizing — match the branch circuit breaker or fuse to this figure, not the drive's own input current. The filter can handle 1.5× nominal current for 60 seconds, which covers the drive's inrush and acceleration transient without saturating the magnetics. THDI performance varies by drive family: 10 % for ATV61W, ATV630, ATV650, ATV930, and ATV950; 16 % for ATV61H, ATV71H, ATV71P, and ATV71W. That means on an ATV630 the filter knocks harmonic distortion down to 10 % of fundamental — clean enough to meet IEEE 519 recommendations for a dedicated transformer or a weak utility connection. On the ATV71 family the 16 % figure is still within IEC 61000-3-12 limits for most installations. Power factor correction is inherent: cos φ is 0.99 at full load, 0.85 at 75 % load, and unity at 150 % of line current. The 98 % efficiency means 118 W of thermal loss to vent from the enclosure — that is modest for a 14 A passive filter, but in a sealed IP55 panel it raises the internal temperature by roughly 5–8 °C, so factor it into the cabinet cooling budget.
The filter is IP20 as shipped — suitable for a clean, dry electrical room inside a panel. When mounted inside an IP55 enclosure (as is common with the Altivar wall-mount drives it pairs with), the filter's own IP rating is effectively superseded by the enclosure. Operating temperature range is 5–45 °C without derating; above 45 °C up to 60 °C, derate current by 3 % per °C. Storage in original packaging is -25 to 55 °C; transport range extends to 65 °C. Terminals accept 0.5–10 mm² on the main power connections (X1-1 through X2-3) and 2.5 mm² on the auxiliary A/B terminals. Vibration resistance per IEC 60068-2-6: 2 mm peak-to-peak at 5–13.2 Hz, 0.7 gn at 13.2–150 Hz. At altitudes above 1000 m up to 4000 m, derate current 5 % per 1000 m.