what is this fuse for?

[pjstock]

otherwise, on the wall above the batteries I have the standard set of 6 pull out fuses.

But I have another fuse ("breaker") as well. to the Left side
I don't see it described in the manual

does anyone have the same?

could it be for the solar battery charging system? (I haven't really investigated that yet.)

[komposti]

Das ist der FI Schalter.
In Deutschland sehr wichtig, er schaltet das 230 Volt System ab, wenn ein Fehlerstrom anliegt.
Das können Dir aber die Spezialisten hier besser erklären.
Jens L zu Beispiel ...

BG Thomas