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"max fuse" value: 15A

Prouse said systems under 1000W do not need to be fused. This new system will be over 1000W so now need to fuse. My cheap self just wants to add fuses after each array is joined. Bad idea?

Thanks

Good point. Thanks!

Someone said the new array should be treated the same as adding another panel in series and a friend suggested this diagram. Thoughts?

Thanks. Will look into this

The three panel array in the OP diagram are on a trailer roof and the other array will be ground mounted. I can make the other array match VOC and voltage if necessary. So how can I add the other array so it does not increase the current?

I want to add a PV panel array in series (to not increase the current) to an array that is already wired in parallel (to deal with different panel shading. See diagram). I can’t find a diagram of or info about this. Is it possible? A diagram would be most helpful.

Looks good. How are those rails/struts/channels attached to the trailer? Would you do it differently now?