ᐅ Is it worthwhile to install a sub-distribution board with a multimedia panel?

Created on: 22 Sep 2022 11:17
N
netzplan
N
netzplan
22 Sep 2022 11:17
Hello everyone,

we are currently renovating our multi-family house, and I have the following question as I plan to provide the electrician with the information today.

Each apartment (3 units) will have a sub-distribution board. The apartments will also be prepared for KNX. Each apartment has about 10 lights and 7 electric roller shutters/blind systems. I would only prepare cables for future smoke detectors, window opening contacts, switchable sockets, etc., as a precaution.

According to the electrician, a 3- or 4-row sub-distribution board should be sufficient if the first row of terminal blocks is fully used. Now I am wondering:

  • For added safety, should we still go for a 5-row board since the additional cost is minimal?
  • Would hybrid sub-distribution boards with multimedia sections make sense for the apartments?
Regarding point 2, I thought that the apartments could neatly store their phone connection and Fritzbox. Do you see it similarly? Would or could a multimedia section offer any other advantages?
i_b_n_a_n22 Sep 2022 11:37
I would definitely plan it as you described, with five rows and a multimedia panel upfront. I always find it better to have something "nice" like this in rented residential units, rather than the tenant having to set up something temporary. We have designated "good" router locations directly within the units and pre-wired them.
N
netzplan
22 Sep 2022 12:42
Hello @i_b_n_a_n
I agree. I looked into it. There are hybrid sub-distribution boards with a single compartment that can hold up to 3 rows plus a multimedia section. I think that would be too small for KNX in the future.

Then there are two-compartment boards with 3, 4, or 5 rows on the left and a multimedia section on the right. The width wouldn’t fit next to the apartment entrance door. I would need to ask the electrician if they can suggest an alternative location.

I’m thinking of a chimney shaft that we partially demolished, about 60cm x 70cm (24 inches x 28 inches). Heating and water pipes will run through there and it will be closed off later. I’m not sure if it’s allowed to install a sub-distribution board near heating pipes there (as an in-wall version).