The 5UB2212-4 is the aluminium metallic DELTA miro double socket — the only variant in the 5UB2212 series with traditional screw terminals. Rated for 10/16A at 250V, it provides two Schuko outlets with increased touch protection in a 70×70mm flush-mount format. The polished aluminium metallic finish and claw mounting complete a socket built for installations where both aesthetics and serviceability matter.

Why screw terminals instead of plug-in?

Screw terminals accept stripped conductors and clamp them with a rotating screw head — the traditional connection method trusted by electricians for decades. Compared to plug-in (push-in) terminals, screw terminals offer two advantages: (1) they grip conductors with higher clamping force, making them more resistant to vibration-induced loosening; and (2) rewiring is straightforward — loosen the screw, remove the old conductor, insert the new one, re-tighten. Plug-in terminals use a spring-loaded jaw that releases by inserting a small tool — faster initially but less intuitive to rewire. In the 5UB2212 range, only the aluminium metallic -4 uses screw terminals; all other variants use plug-in.

What distinguishes the aluminium metallic finish?

Aluminium metallic is a bright, silver-toned finish (approximately RAL 9006, white aluminium) with a subtle brushed texture. It reads as clean and contemporary — well-suited to modern kitchens, office spaces, and minimalist interiors. This contrasts with the darker, warmer carbon metallic (-5) and the deeper anthracite (-5KK) in the DELTA miro palette. All three metallic finishes share the same thermoplastic base material; the metallic effect is a surface treatment, not a metal housing.

How does the 5UB2212-4 compare to the -4KK clawless version?

The 5UB2212-4 uses claw mounting and screw terminals. The 5UB2212-4KK replaces claws with direct screw fixing AND switches to plug-in terminals. This means the -4 and -4KK differ in both mounting method and connection type — the most pronounced variant split in the 5UB2212 range. Choose the -4 for traditional screw-terminal wiring with claw grip; choose the -4KK for plug-in speed with clawless screw fixing.

Frequently Asked Questions

Is the aluminium finish prone to fingerprints or scratching?

The aluminium metallic surface on DELTA miro sockets is a coated thermoplastic finish, not bare metal. It resists fingerprints better than brushed stainless steel and cleans with a dry or lightly damp cloth. The finish is durable under normal indoor use but can be scratched by abrasive cleaners or sharp objects — treat it like any premium interior surface.

What conductor cross-sections do the screw terminals accept?

Siemens DELTA miro screw terminals accept solid or stranded conductors from 1.5mm² to 2.5mm², covering the standard range for 16A socket circuits. Stranded conductors should be fitted with ferrules for reliable clamping.