How to find S/N no. on VBF2 TeSys Vario - switch disconnector

There is Datecode (factory code, year and week of manufacturing) printed in sticker of VBF2 - please see examples in Attachment1.
However, VBF2 has no S/N (serial number unique for each piece of product).

Đã phát hành cho: Schneider Electric Việt Nam