The Siemens 5UB1917-0SB01 is the soft black colour variant of the 5UB1917 DELTA i-system Schuko socket. It combines a spring-loaded hinged cover with a matte soft black finish in the standard 55×55 mm format. The -0SB01 suffix designates the soft black finish; all electrical and mechanical specifications are identical to the white 5UB1917.

How does the 5UB1917-0SB01 differ from the 5UB1915-0SB01?

Both are soft black hinged-cover Schuko sockets in the DELTA i-system 55×55 mm format. The difference: the 5UB1915-0SB01 includes increased touch protection (internally shuttered apertures), while the 5UB1917-0SB01 does not. If the installation requires VDE-compliant increased touch protection, the 5UB1915-0SB01 is the correct choice. If not, the 5UB1917-0SB01 delivers the same soft black aesthetic at a lower cost.

What does the -0SB01 suffix mean?

The -0SB01 suffix designates the soft black (matte black) colour finish. The colour is integral to the thermoplastic material — not a surface coating — so it does not wear off, scratch through to a white base layer, or fade under indoor lighting. It is the same quality grade as the standard white and titanium white variants in the DELTA i-system range.

Is this socket suitable for domestic installations?

Yes. The 5UB1917-0SB01 is fully compliant with standard domestic wiring regulations where increased touch protection is not mandatory. The soft black finish suits contemporary interiors with dark switchgear, stone, or timber wall finishes. For households with young children, however, the 5UB1915-0SB01 with increased touch protection is the safer choice.