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Hello and good morning,
I am a noob and by no means and electrician, but am looking for help to do one specific task for the off-grid setup on my mountain cabin.
My configuration is to have 4 panels in 1 string (All 4 connected in series). I would like to disconnect 1 panel from the string during cold weather due to the danger of over-voltage damage to my Growatt off-grid inverter (SPF 3000TL LVM-48P).
I was reading another thread on this forum about this and mentioning using a three-way switch, but that poses a danger from arcing. I was wondering if I put a disconnect just before the switch, and then use a standard 120 AC switch, would that work, or would I need a special three-way switch? Or is there a better solution?
Unfortunately, I cannot run two parallel 2 panel strings since the Growatt has a defined voltage range.
I am a noob and by no means and electrician, but am looking for help to do one specific task for the off-grid setup on my mountain cabin.
My configuration is to have 4 panels in 1 string (All 4 connected in series). I would like to disconnect 1 panel from the string during cold weather due to the danger of over-voltage damage to my Growatt off-grid inverter (SPF 3000TL LVM-48P).
I was reading another thread on this forum about this and mentioning using a three-way switch, but that poses a danger from arcing. I was wondering if I put a disconnect just before the switch, and then use a standard 120 AC switch, would that work, or would I need a special three-way switch? Or is there a better solution?
Unfortunately, I cannot run two parallel 2 panel strings since the Growatt has a defined voltage range.
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