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SmartSolar MPPT 75/10, 75/15, 100/15 & 100/20 Fuse Purpose

Hello, I have the SmartSolar 100/20 and am wondering what the 25A fuse built into the unit is protecting. I assume it's not for the solar input since that current will vary greatly depending on panel type. Is the fuse in line with the battery connection or the load connection? I plan to fuse the panels, load and battery connection, but don't need to be redundant since it seems like either the battery or load connection is already fused.

https://www.victronenergy.com/upload/documents/Manual-SmartSolar-charge-controller-MPPT-75-10-75-15-100-15-100-20-EN-NL-FR-DE-ES-SE.pdf

Followup question, the manual says on page 11 for the 75/10 and 75/15 model it says that the "automatic load disconnect" and the "continuous load current" is 15A. On page 12 it says that continuous load current is 15A for the 100/15 and 20A for the 100/20. That all makes sense, But then also on Page 12 it says for the "automatic load disconnect": "Yes, maximum load 15A resp. 20A". I would have thought it would have a separate column for the 100/15 (15A) and the 100/20 (20A) I would assume that the resp means 20A for the 100/20 version but you know what they say about assuming... On the temperature compensation it also uses "resp" but that is referring to 12 or 24V, want to make sure that the load current on the 100/20 is not voltage dependent.

Thanks!

-Ben

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