The VW3A9115 is an IP31 conformity kit from Schneider Electric, designed for the ATV61 and ATV71 variable speed drive series. It's a mounting and fixing accessory that brings the drive enclosure up to IP31 protection when installed per the manual. The kit ships with fixing accessories, one manual, one IP31 cover, one EMC plate with cable clamps, and one IP54 casing — the IP54 casing is a bonus for environments that need a step up from the base IP31 rating.
The EMC plate with cable clamps is worth noting — it's not just a cover; it provides a bonding point for cable shields, which keeps conducted emissions within the drive's EMC envelope. Mount it close to the drive's line entry; long pigtails defeat the filter. The IP54 casing in the kit means you can take the drive from IP31 to IP54 in one order, which is useful for washdown-adjacent installations or outdoor cabinets where the drive itself is only rated IP20 out of the box.