The Siemens 5UB1905 is the DELTA i-system Schuko socket that pairs a spring-loaded hinged cover with increased touch protection. It sits between the basic 5UB1907 (hinged cover, no increased touch protection) and the more feature-rich 5UB1902 (hinged cover + labeling field) in the DELTA i-system range.

What is the difference between 5UB1905 and 5UB1907?

Both are electric white, flush-mount, hinged-cover Schuko sockets in the 55×55 mm DELTA i-system format with screwless terminals. The sole difference: the 5UB1905 includes increased touch protection (erhöhter Berührungsschutz) — internally shuttered live and neutral apertures — while the 5UB1907 does not. If the installation code or site policy requires increased touch protection, the 5UB1905 is the correct choice. If it does not, the 5UB1907 is functionally identical at a lower cost.

Does the hinged cover make increased touch protection redundant?

No — the two features address different risks. The hinged cover protects the socket when it is not in use (plug removed, flap closed). The internal shutters protect when the socket is in use — during plug insertion, or if the cover is deliberately held open. A partially inserted plug can leave live pins exposed, and only the internal shutters guard against contact in that scenario. For publicly accessible areas such as schools, kindergartens, and hospital waiting rooms, both layers of protection are advisable.

When is increased touch protection required by regulation?

German DIN VDE 0620-1 requires increased touch protection for socket outlets installed in publicly accessible areas of certain building types, including schools, childcare facilities, and healthcare premises. Many commercial building specifications also mandate it as a blanket policy regardless of room type. Check the project's electrical specification; if in doubt, choosing the increased-touch-protection variant (5UB1905) avoids a non-compliance risk during final inspection.