User Manual
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Siemens ET D1 · 2018/2019
Introduction
Retrofitting and replacement made easy
1
Regardless of whether you want to retrofit specific functions or
replace components – it couldn't be easier with our modular
design and plug-in technology.
Spare glow lamp for SCHUKO socket outlet
Our socket outlets have a convenient modular design.
This means: by mounting auxiliary modules, our inserts
also support the implementation of overvoltage
protection and status display. It is possible to retrofit
socket outlets that are already installed at any time.
Overvoltage protection
modules
Mounted overvoltage
protection module
®