Hi
Just in case someone is searching for an answer to the same question. I registered on the Fibaro forum to seek an answer and it turned out that others were facing the same wiring problem and wanted to know if the above setup is working. Short answer: Yes it does. However, someone linked to a post where Vesternet had issued a warning using this solution with the reference to that Sx is not just Live. It’s connected through an internal fuse and potentially have other functions as well. They also said it could potentially be dangerous using this setup.
I did some tests with a multimeter and could not find anything that would prevent me from wiring the switch directly to Live. Worst case scenario I would probably damage the dimmer. Nothing worse than that. So, I connected my dimmers like this and they are working fine.
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