Thank you @joochung for the cool idea and the cool files.

As I have to make some modifications and did not like to do them in OPenSCAD.

So I have put a part of the design into Fusion 360.

Stand up version for only one block, back to back.

You can select the amount of conductors by the parameter "Klemmen"

I have printed a version with 5 and with 3 conductors, works perfect.

WagoKlemmenHalterSenkrecht.f3d : The Fusion 360 file

KlemmenHalter_5_V1.3mf : PrusaSlicer Project with one mount 5 conductors

KlemmenHalter_3_V1.3mf : PrusaSlicer Project with 2 mounts 3 conductors

Printed with 0,1mm