The Siemens 5UB1315 is the DELTA profil version of the CEE 7 universal socket — a single outlet that accepts both German Type F (Schuko) and French Type E plugs. It combines three features that distinguish it from the rest of the 5UB13 range: cage clamp terminals, increased touch protection, and the slim profil frame.

What does a center protective contact socket actually accept?

The "center protective contact" means the socket has both side earth clips (for Type F Schuko plugs) and a central earth pin (for Type E French/Belgian plugs). This dual-earthing design makes it a universal European socket — one outlet works regardless of whether the equipment comes with a German or French plug. In international buildings, mixed-origin equipment is the norm, and universal sockets eliminate adapter clutter.

Why cage clamp instead of screw or plug-in?

Cage clamp terminals grip the conductor between a fixed current bar and a spring-loaded cage. Unlike plug-in push connectors, the cage clamp can be opened and closed repeatedly with a screwdriver without losing spring force. Unlike traditional screw terminals, they do not need re-torquing after thermal cycling. For installations subject to regular reconfiguration — exhibition halls, modular offices, test labs — cage clamp is the most maintainable option.

What does increased touch protection mean in practice?

Increased touch protection (erhohter Beruhrungsschutz) means the live contacts are recessed deeper inside the socket body, and the apertures are shaped so that a child's finger or a thin metal object cannot reach the energized parts. This goes beyond the basic IP20 requirement — the socket meets the stricter VDE 0620 safety provisions for installations in schools, kindergartens, and public areas where untrained users interact with outlets.