The calculator gives significant differences when choosing between terminal and mc4 for the pv connection option, does this mean the connection at the mppt charger or the panels or both.
asked
Victron mppt calculator
@rubberbrick 1 thought would be that mc4 connectors have a 30a limit. Above 30a you would have to spread the array to other mc4 inputs.
Post a couple of configs.
Details below, same s3p1 settup with < 15amp string but with terminal connections requires 150/35 mppt and with mc4 requires 150/60 might be I am missing somthing
with mc4.pdf Victron Calculator with mc4 connection
With terminals.pdf Victron Calculator with Terminal connection
@rubberbrick it would seem that the smallest mppt with mc4 connectors is the 150-60 model. Hence the jump from the 150-35 to the 150-60.
ok i get get it, not talking about the mc4 connectors at the panel end.
thanks
