4-Pole Distribution Block

[RCDGuy]

I am designing a 3ph + N scheme. I want to use a 4 pole distribution block, so I can easily bring in the TPN supply, and use L1, L2 and L3 for 3 different areas.
I could use a 3ph distribution board, but the 3 1ph CCU boxes are quite separated, so I just want to be able to split the supply close to the meter. How do I show this in the scematic?
This is what I was thinking of using
Legrand 125A 4 Pole 6 Module Distribution Block
Part Code: 004886
Stock Code: 0056-4532

Four pole with 4 bars
125A 6 modules
Connection with or without Starfix ferrules
Supplied with short ferrule

[Mert]

Hello,
You can add a Junction box connection from the 3ph source. Then add the single-phase circuits and set the appropriate phase.

[RCDGuy]

Here is a picture for you

Hello,
You can add a Junction box connection from the 3ph source. Then add the single-phase circuits and set the appropriate phase.