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...
Forum Discussion
Two in series puts you at 72 volts DC and above most "12 volt" DC equipment.
I used a 240 vac safety switch from Home Depot. About $15. It works but is not DC rated. At 72 volts you might be OK as mine seems to work but without the rating I can't recommend it.
DC will create an arc or spark across the gap easier than ac so I have been looking at replacing the switch.
Been considering the Square D - H221N 30a safety switch
This is rated 250 vdc.
youtube demonstration video
I keep looking for the small solar DC isolation switches but only seem to be available outside the USA. USA grid tie inverters seem to have the DC isolation integral with the inverter.
I used a 240 vac safety switch from Home Depot. About $15. It works but is not DC rated. At 72 volts you might be OK as mine seems to work but without the rating I can't recommend it.
DC will create an arc or spark across the gap easier than ac so I have been looking at replacing the switch.
Been considering the Square D - H221N 30a safety switch
This is rated 250 vdc.
youtube demonstration video
I keep looking for the small solar DC isolation switches but only seem to be available outside the USA. USA grid tie inverters seem to have the DC isolation integral with the inverter.
