The Neutral can be connected on the right.
See link to the instruction sheet: Instruction Sheet for ComPacT INS40–80 and INS100–160
How to install the INS:
- there is an engraving on the front made in the factory with the N on the left side.
- in the package there is a sticker. A blank to cover the engraving of the left side. and a sticker with the “N” to stick on the right side.