Is touch protection alone worth the upgrade from the base model?

Increased touch protection (erhöhter Berührungsschutz) means the live socket contacts sit deeper inside the housing than on a standard Schuko outlet, preventing a standard VDE 0620 test finger from reaching them. The 5UB1924 adds this feature to the base 5UB1921 platform without the hinged cover or labeling field. The resulting product weighs 91 g — 13 g more than the 78 g base model, entirely from the deeper contact recess and associated housing geometry. For schools, daycare centers, and pediatric healthcare facilities, touch protection alone satisfies the safety requirement without the dust-ingress function of a hinged-cover model. For standard residential and office use, the base 5UB1921 is sufficient.

How does the 5UB1924 compare to the hinged-cover 5UB1920?

Both include increased touch protection. The 5UB1920 adds a spring-loaded hinged cover; the 5UB1924 does not. The choice comes down to a single question: does the installation environment have airborne dust, splash risk, or small children who might poke objects at the socket? If yes, the 5UB1920 covers both risks with its dual-layer protection. If the only requirement is preventing electrical contact during deliberate probing — without dust or splash exposure — the 5UB1924 delivers the same electrical safety at a marginally lower weight and cost.