The Siemens 5UB1551-0KE is the Profibox kit variant of the 5UB1551 electric white Schuko socket outlet. Rated at 10/16 A / 250 V AC for flush-mount indoor installation, it shares the same technical specifications as the base 5UB1551 — screwless plug-in terminals, 55 × 55 mm cover plate, claw-and-screw mounting, no labeling field, and no increased touch protection. The difference is purely in packaging and quantity.

What does the Profibox kit include?

The -0KE suffix designates the Profibox I-System packaging: a single bulk box containing 100 identical 5UB1551 socket outlets, each with mounting claws and screwless terminals. The box dimensions are approximately 400 × 500 × 200 mm — designed to go straight from the wholesaler to the installation site. There is no retail packaging per socket, which reduces waste and unpacking time on large jobs.

When does a 100-pack make sense?

The Profibox is aimed at electrical contractors fitting out multi-unit residential buildings, office floors, or hotel corridors — anywhere the same electric white Schuko socket repeats across dozens or hundreds of rooms. Buying in bulk reduces per-unit cost and eliminates the time spent opening individual retail boxes. For smaller jobs or mixed-color installations, the single-unit 5UB1551 or the 10-pack 5UB1551-0KK are more practical choices.