When does the base model make sense in an aluminum metallic installation?

The 5UB1931 is the entry point to the aluminum metallic DELTA i-system range. At 78 g and with zero add-on features, it is the lightest and most cost-effective socket in the series. It delivers the same 10/16 A, 250 V rating, the same screwless plug-in terminals, and the same 55x55 mm aluminum metallic center plate as every other 5UB193x model — just without hinged covers, labeling fields, or increased touch protection. For a living room, bedroom, or dry hallway where sockets are used occasionally and aesthetics matter more than protective features, the base model is the natural specification.

How does the 5UB1931 compare to the carbon metallic 5UB1921?

Both are base-model DELTA i-system Schuko sockets without add-on features. The 5UB1931 is aluminum metallic (~RAL 9006, silver-toned); the 5UB1921 is carbon metallic (~RAL 7016, dark anthracite). Both weigh 78 g, both use screwless plug-in terminals, and both fit the same 45 mm deep flush-mount boxes. Choose the finish that matches the room's switch program and wall color — functionally they are interchangeable.

Frequently Asked Questions

Can I upgrade the base model with touch protection or a labeling field later?

No. These features are integral to the socket body and are not retrofittable. If increased touch protection or a labeling field is needed, specify the 5UB1934 (touch protection only, 85 g) or the 5UB1933 (labeling field, 91 g) from the start.

Does the base model still accept CEE 7/7 hybrid plugs?

Yes. The 5UB1931 accepts all standard CEE 7/4 (Schuko), CEE 7/7 (hybrid), and CEE 7/16 (Europlug) connectors. The base designation refers to the absence of extra features — not a restriction on plug compatibility.