The 5UB2211-3 is a DELTA line double Schuko socket in titanium white — two independent 16A outlets sharing a single 70×70mm flush-mount faceplate. Both sockets include increased touch protection as standard, with screwless plug-clamp terminals that accept conductors up to 2.5mm² without tools.

Why install a double socket instead of two singles?

The practical reason is space and cost. A double socket fits into one standard 60mm device box — the same box a single socket uses. Installing two single sockets requires two separate boxes, two cutouts, two sets of conduit, and twice the wall area. In kitchens, home offices, and entertainment centers where multiple appliances cluster in one spot, a double socket solves the outlet shortage without the masonry work of adding a second box. The trade-off is total simultaneous current: both outlets share the same 16A supply circuit, so two high-draw appliances (two kettles, a toaster and a microwave) plugged into the same double socket will trip the 16A breaker. For high-power pairs, two singles on separate circuits is the safer choice.

DELTA line or DELTA i-system — what is the difference?

DELTA line (5UB2xxx prefix) and DELTA i-system (5UB1xxx prefix) are two product families from Siemens. DELTA line uses a 70×70mm faceplate format with snap mounting — the socket clips directly into the mounting box without screws. DELTA i-system uses a modular 55×55mm insert format where the insert and the frame are separate components — you choose the insert and pair it with a matching i-system frame. Both families are compatible with Siemens DELTA frame systems, but DELTA line products are complete units (insert + frame integrated), while DELTA i-system products are inserts that require a separate frame. For a straightforward white double socket, the 5UB2211-3 as a complete DELTA line unit means fewer parts to order and simpler installation.

What frames and covers does the 5UB2211-3 work with?

The 70×70mm footprint is the standard DELTA line format. The glossy titanium white finish (~RAL 9010) matches standard white DELTA frames, including the basic DELTA miro white and DELTA style white ranges. The socket uses snap mounting — it clips into a standard 60mm round device box — so no screws are needed for the mounting frame. A 45mm installation depth is typical for flush-mount sockets; standard 60mm-deep device boxes accommodate the socket with room for the conductors behind it.