I have a Multi 48/5000 and a very cheap but good working 2.5KW gasoline generator connected to AC IN.
At final installation tests, I found out that the Residual Current Device does not work, when the generator is running and supplying power, even though I connected a good earth to the generator.
It seems, the generator is not capable of a RCD.
Is it OK to hard wire PE and Neutral on the Multi? Or what is common practice?