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KNX system in the construction phase / later adaptation possible? - Part 1

January 21, 2019



KNX in the construction phase is an important topic, which is highlighted in this blog article by E-Necker


Many apartment and house owners know it: The money just "flows", the plumber, tiler, builder, etc. cost a lot of money and you want to save where ever possible. Of course, the question of what can be saved in electrical engineering is also considered.


Saving is possible,it is important to consider that later extensions are easily possible when the household budget has recovered.


So what can be done with a new building to set a good basis for retrofitting or adapting at a reasonable price later on?


Good planning is the most important thing, so you can save yourself from having to chiseling the walls.


The most important decision is that of the power distributor. Is everything controlled by a single distributor at a central point, or do you opt for floor distribution in addition to main distribution? This would mean placing a large distribution cabinet in the basement or in a niche and using further small distributors on the individual floors, which would then be connected to the main distributor.


How large should such a distributor be? In general, one can say that it would be better to get a slightly larger one than too small, so that there is still room for expansion. Later conversions to a larger distributor can be very cost-intensive.


Furthermore, you should also think of your own cable duct, so that you can distribute all cables in the house and subsequent expansion is possible. Nothing is more annoying than not having enough space for another cable. Of course you also have to take care to isolate power cables from network cables or satellite cables, otherwise interference can occur.


Even if you are allowed to lay KNX bus cables next to power cables, you should consider laying them separately in order to avoid unlikely influences.


This was a rough first overview on the subject of KNX systems in the construction phase.

In the next blog, we will go into the topic of cabling in more detail. Which preparations can be made during the construction phase in order to save time, money and nerves later on?