The Siemens 5UB1558-0KK is the no-claws variant of the 5UB1558 Schuko socket outlet, in a standard white finish. Rated at 10/16 A / 250 V AC for flush-mount indoor installation, it retains the increased touch protection of the base 5UB1558 but omits the mounting claws — screw fastening only — and ships in a 10-pack. Screwless plug-in terminals and the 55 × 55 mm cover plate are unchanged.

Why choose screw-only mounting?

The -0KK suffix ("Keine Krallen") removes the retractable metal claws used to clamp the socket against plasterboard or drywall. In solid-wall installations — brick, concrete, blockwork — the socket is secured by screws driven directly into the flush-mount box embedded in the wall. The claws are unnecessary and can actually interfere with achieving a flush fit in a rigid box. By omitting them, the 5UB1558-0KK is slightly lighter and simpler to seat correctly in solid-wall boxes. The 10-pack quantity suits mid-sized projects: larger than a one-off, smaller than the 100-pack Profibox.

How does this differ from the 5UB1551-0KK?

Both are no-claws, 10-pack variants in the 5UB155x range. The difference is increased touch protection: the 5UB1558-0KK includes the internal shutter mechanism; the 5UB1551-0KK does not. If your solid-wall installation requires enhanced safety compliance, the 5UB1558-0KK is the one to pick.