The 5UB1937 is the aluminum metallic DELTA i-system Schuko socket with a spring-loaded hinged cover and increased touch protection — the silver-toned equivalent of the carbon metallic 5UB1927. The cover snaps shut automatically when no plug is inserted, shielding the contacts from dust, light moisture, and accidental touch.

What does the hinged cover protect against?

The spring-loaded flap provides mechanical protection rather than IP-rating improvement — the socket remains IP20 with or without the cover. Its real-world value is keeping household dust, cooking aerosols, and cleaning-product mist off the live contacts when the socket is idle. In kitchens, utility rooms, and corridors — spaces where sockets sit unused for hours or days — the cover prevents the slow buildup of conductive grime that can cause creepage currents. The 150° opening angle means the flap swings fully out of the way when a plug is inserted, so it does not obstruct angled or molded plugs.

How does increased touch protection work together with the hinged cover?

Increased touch protection (erhöhter Berührungsschutz per VDE 0620) recesses the live contacts behind insulating shrouds inside the socket well — they cannot be reached by a finger or a thin metal object even when the cover is open. The hinged cover adds a second, mechanical layer: when closed, it physically blocks access to the socket well entirely. The two mechanisms are complementary — the cover is the first barrier, and the shrouded contacts are the backup. Note that neither constitutes a child safety lock (Kinderschutz), which requires a spring shutter that opens only under simultaneous pressure on both pins.

How does the 5UB1937 differ from the carbon metallic 5UB1927?

Electrically and mechanically identical — same snap-shut cover, same 150° opening angle, same increased touch protection, same 10/16A 250V rating. The only difference is the finish: 5UB1937 is aluminum metallic (~RAL 9006) at 100g, while 5UB1927 is carbon metallic (~RAL 7016) at 98g. The 2g spread is well within normal manufacturing tolerance and coating variation. Choose the finish that matches your DELTA i-system frame installation.