Fuse between solar panels and MPPT controller?

[lustyd]

So what is the purpose of the device in the schematic ?

Ask Victron, everyone here has already had a go at explaining so why would this time be any different?

 

[rogerthebodger]

Ask Victron, everyone here has already had a go at explaining so why would this time be any different?

I would agree with that. Get the story from the horses mouth.