I have 10 awg homerun fused with 30 amp fuse on a string homerun from panel to controller mpp . The two panels in series are 2@ 355 watt, 48 v ,9.06 amp paneles in series.
Is an additional fuse needed at the panels to protect 9.06 amp?
Thanks
Although no fuse is needed, having a way to shut those panels off without climbing to the top of the roof and putting a blanket over them is nice for maintenance. I use a circuit breaker for that.