I’ve got an MPPT charge controller rated for 55V maximum input voltage.
The panels I’m considering have a 50V Voc @ 25C and an 0.27V TC factor.
The average coldest annual temperature where I live is 39F (3.9C).
So on a rare morning that drops all the way down to 39F, Voc will be higher by 21.1 x 0.27V = 5.7V or 55.7V total.
So my question is, if input voltage to an MPPT controller very occasionally exceeds it’s rating by a little bit (0.7V in this case), will it permanently damage the controller?
The panels I’m considering have a 50V Voc @ 25C and an 0.27V TC factor.
The average coldest annual temperature where I live is 39F (3.9C).
So on a rare morning that drops all the way down to 39F, Voc will be higher by 21.1 x 0.27V = 5.7V or 55.7V total.
So my question is, if input voltage to an MPPT controller very occasionally exceeds it’s rating by a little bit (0.7V in this case), will it permanently damage the controller?