The Siemens 5UB1913 is a unique combination in the DELTA i-system range: a green Schuko socket that brings together a hinged cover, an integrated labeling field, and increased touch protection. No equivalent exists in the 5UB190x line — this is the only green socket in the DELTA i-system catalogue to include all three features in a single 55×55 mm unit.

Why would I need a green socket with a hinged cover AND a labeling field?

Green sockets identify filtered, conditioned, or safety-relevant power circuits in German installation practice. Adding a hinged cover provides mechanical protection against dust and cleaning moisture in environments such as laboratories, medical treatment rooms, and clean-room anterooms. The integrated labeling field allows each green socket to carry a unique circuit identifier — which filtered supply it belongs to, which UPS branch feeds it, or which equipment it is reserved for — without relying on clip-on labels that can fall off.

What does the green SV colour code mean?

In German electrical installations, green socket outlets (marked SV for Sicherheitsversorgung / safety supply) designate circuits that provide a specific quality of power. Typical applications include IT/server filtered supplies, medical-area socket circuits, and laboratory or test-bench power that must be visually distinguishable from general-purpose mains. The green colour gives maintenance and nursing staff an instant visual cue that the power on this socket is conditioned or backed up.

How does this differ from a standard green socket like the 5UB1900?

The 5UB1900 is a basic green Schuko socket with increased touch protection — no cover, no label. The 5UB1913 adds the hinged cover and the integrated labeling field. If the green socket is installed in a location subject to occasional dust or cleaning moisture — or if each green socket needs to be individually identifiable — the 5UB1913 is the correct choice. If all you need is the green colour code on a standard socket, the 5UB1900 or 5UB1910 is sufficient.