Why combine a labeling field and status indicator in one socket?

The 5UB1935 pairs the two convenience features that make a socket easy to use and easy to maintain: a labeling field for circuit identification and a glow lamp for live-power indication. The labeling field answers "which circuit is this?" — the status indicator answers "is it live right now?" In corridors, server rooms, and behind equipment, that combination means an electrician can identify the circuit and verify its status without a meter. The lamp draws under 2 mA and glows a soft orange, visible even in dark locations.

How does the 5UB1935 compare to the carbon metallic 5UB1925?

Both offer the same two-feature combination: labeling field plus status indicator, with no hinged cover and no increased touch protection. The difference is finish and weight: 5UB1935 in aluminum metallic (~RAL 9006, 88 g) versus 5UB1925 in carbon metallic (~RAL 7016, 81 g). The 7 g weight gap is larger than typical paint-related differences between the two finish families and likely reflects a different internal build or component generation. Both use screwless plug-in terminals and fit a 55x55 mm center plate in any DELTA i-system installation.

Frequently Asked Questions

Can the glow lamp be replaced when it eventually dims?

Yes. The status indicator uses the same glow lamp technology as the 5TG7304 replacement lamp. After many years of continuous operation — typically well over a decade — the lamp may dim. A qualified electrician can access and replace it during standard faceplate removal.

Does the aluminum metallic finish affect the visibility of the indicator lamp?

No. The indicator aperture is a separate transparent element in the socket face and is not covered by the metallic coating. The orange glow is equally visible on both the aluminum metallic and carbon metallic versions.