Best Way??
I have 4-Canadian SC6P-220w Panels with the following spec's, Pmax=220W Voc =36.60V ISC =8.09A VMP =29.30V Imp =7.52A Voc-coef =0.1281V/C Noct =45.00C 15A fuse rating/series Per actual meas...
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One second or less time of being over Voc and you fry the controller. Very expensive! Yipes!
The instructions warn to adjust your expected panel Voc for temperature where the 150v limit is taken at 25C (warm!) to the coldest temps you expect to be camping in (the panel Voc rises as it gets colder) so use the spec temp vs voltage co-efficient to get that.
Then leave a bit extra margin just to be sure.
On the wire gauge go as fat as you can within price reason. If #8 will do but #6 is available for not much more money, use the #6
The instructions warn to adjust your expected panel Voc for temperature where the 150v limit is taken at 25C (warm!) to the coldest temps you expect to be camping in (the panel Voc rises as it gets colder) so use the spec temp vs voltage co-efficient to get that.
Then leave a bit extra margin just to be sure.
On the wire gauge go as fat as you can within price reason. If #8 will do but #6 is available for not much more money, use the #6
