The Schneider Electric VW3A4613 is a passive filter designed to reduce current harmonics on Altivar variable-speed drives. This is a mature, now-obsolete part (per Schneider's lifecycle status). It was built for specific Altivar models: one filter per drive for ATV61HC22N4, ATV71HC20N4, and ATV71HC25N4, and three filters per drive for the larger ATV61HC63N4.
The THDI (total harmonic current distortion) performance depends on the drive model and load: 10 % for ATV71HC25N4 (250 kW/400 hp motor), ATV61HC22N4 (220 kW/350 hp), ATV61HC63N4 (560 kW/800 hp), and ATV71HC20N4 (200 kW/300 hp). That's the residual harmonic content after filtering — low enough to meet most utility harmonic limits without an active front end. Power factor (cos φ) varies with load: 1 at 150 % of line current, 0.99 at 100 %, and 0.85 at 75 %. The filter also handles 1.5 x nominal current as a maximum, so it can ride through short overloads without saturating. Operating temperature range is 5 to 40 °C without derating; above that, derate 3 % per °C up to 55 °C. Altitude derating kicks in above 1000 m — 5 % per additional 1000 m. Relative humidity 5 to 85 % non-condensing. IP20 enclosure means it's for clean, dry indoor panels only.
Sourcing reality — obsolete, but available
Schneider lists the VW3A4613 as obsolete. No factory production or standard lead time is available. Sourcing is limited to surplus and independent-distribution channels.