The Siemens 5UB1815 is a green SCHUKO socket outlet from the DELTA style series, combining an integrated labeling field with increased touch protection in a single flush-mount unit. Rated at 16A/250V, it is designed for indoor installations where both circuit identification and enhanced contact safety are required.

What is the integrated labeling field for?

The cover plate includes a transparent window that accepts a paper label or printed strip. Installers use it to mark the circuit number, purpose, or location directly on the socket — eliminating the need for separate label holders or handwritten tape. Common labels include circuit designations such as "SV Circuit 2," "Safety Supply — Lab Wing B," or "Dedicated Line — Do Not Switch."

How does increased touch protection improve safety?

The socket contacts are recessed deeper than on standard SCHUKO outlets, making accidental finger contact with energized parts significantly less likely during plug insertion and removal. This exceeds the baseline VDE 0620 requirement and is specified for installations in schools, laboratories, and public-access areas where untrained personnel may interact with sockets.

Why choose the green variant?

In German installation practice, green sockets identify safety supply circuits (SV — Sicherheitsversorgung), such as decentralized emergency lighting or local battery-backed systems. The green cover plate provides instant visual recognition that this is a safety-critical circuit, while the labeling field lets you document the exact safety function — combining two identification methods in one device.