Seal electrical boxes from the outside

Hello Joachim

your electrician is not the brightest candle on the tree.
What he wanted to do with it is clear. It would have been better to measure the control panel exactly and attach the empty box including the empty conduit to it. Now you have a mess. Pour resin into the box and the empty conduit.

Steven

Thanks for the information. I will clarify it with the [Rohbauer].