diy solar

diy solar

Fusing 2 panels in series

cisumma

New Member
Joined
Apr 2, 2021
Messages
126
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
 
No fuse needed. You can short the wires all day long with no damage to the panels and any heat in the wire will be from the sun.
 
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.
 
Back
Top