I just received my smartsolar 100/30 charge controller. The manual is a bit underwhelming with details, the wiring diagram does not show any details. Can someone verify the following for me? Thank you
400W solar panel (provided 12awg wire and connections)
40A breaker/fuse between pv and smartsolar
40A breaker/fuse between smartsolar and battery
40A breaker/fuse between battery and load
Can I get away with 10awg marine wire or do I need 8awg?
After my 12v fuse box for loads all wire is 12AWG
PV->Smartsolar breaker is probably too large. It depends on the max amps from the panel. Can you provide the panel specs?
Smartsolar to battery is correct.
Battery to loads depends on your loads. If that never exceeds 350W or so, 40A is fine.
Victron has a nice app to calculate wire sizing. It depends on the length of the wire, the V and the maximum amps it will carry.
Thanks Skipper.
It is 2x 200W solar panel. Here is the spec for one of them:
Voltage MPP Vmp 20.74V
Current MPP Imp 9.68A
Voltage Open Circuit Voc 24.34V
Short Circuit Current Isc 10.31A
If you’ve put the panels in series a 15A breaker/solar disconnect is sufficient.