I'm surprised that manufacturers don't state these figures (so far as I can tell) since they are of substantial importance for electrical safety.
If I run a Phoenix or Multiplus inverter with the AC neutral and earth bonded, what AC voltage, relative to earth, appears on the DC battery terminals?
I would hope that the answer would be "none at all", and that I could safely earth one of the DC battery terminals if I needed to. However, I've experimented with a couple of inexpensive (not Victron) inverters, and they both energize the DC terminals with AC to some extent. They couple only be run with floating, not earthed, batteries.
The reason this is relevant to me is that I have a significant 12V installation for lighting, etc., that will run from the same batteries as the inverter. This is all wired to comply with standards that apply to extra-low voltage installations. If using an inverter impresses an AC voltage on the DC side of more that 25V RMS relative to earth, then it would all have to be rewired.