The VW3A47905 is a metal IP21 protection kit from the Schneider Electric Altivar range, designed specifically for an IP20-rated EMC input filter used with Altivar variable speed drives. The kit includes one IP21 cover and cable clips, bringing the filter enclosure up to IP21 / UL Type 1 protection.
What the IP21 rating means for deployment
It is a basic indoor enclosure rating — suitable for a clean, dry electrical room or cabinet interior where the filter is mounted separately from the drive. The metal construction adds mechanical robustness and EMC shielding continuity.