CEE-shrouded connectors are internationally standardized by IEC 309.1 and 309.2, EN 60309, part 1 and part 2 This standard was published in 1966, developed from the European standard CEE17. Thus, early on the international trade integration into account. The basic principle of the CEE standard (distinctiveness, position of the grounding, color code, etc.) are still valid today. Here too GIFAS probably offers the most comprehensive selection of different ranges. So you can also from the CEE program, select the appropriate connector for your needs.