I am looking to purchase the victron mppt 450/200 solar charge controller. The Max PV operating current is 18A/tracker and Max PV short circuit current is 20A/tracker.
I have 36 qcell qplus-G4.1/SC solar panels and their specs are as follows:
For each tracker, I was planning to set up 18 panels. 2 arrays in parallel. Each array having 9 panels in series.
I live in NJ and our record low is -26C and record high is 42C.
Our mean low is -13.9C and mean max high is 37.8C.
I've made the following calculations (per tracker) and for cold I used -30C and for hot I used 45C.
Voc (STC) - 350.73
Imp (STC) - 17.68
Isc (STC) - 18.82
Voc (coldest) - 447.18
Imp (coldest) - 13.86
Isc (coldest) - 14.76
Voc (hotest) - 315.66
Imp (hotest) - 19.64
Isc (hotest) - 20.92
Are my calculations correct? If so, I think I am fine during STC and when it's coldest. My concern is when it gets really hot. I think I run the risk of the amps being too high and thus damaging the controller. Can I get help confirming this?
Thank you in advance for your help.