Solar Questions, yes more solar questions
Okay, before you say it, I did search, and have been reading on this for days. Here is my question. I have a bonus coming possibly and am trying to decide if I want to use it for solar on our ...
Forum Discussion
KE6IRJ wrote:
Where do the breakers go in line?
Everywhere.
panels -> (Junction box?) ->#1 disconnect switch -> controller -> #2 breaker -> Pos bus -> battery fuse -> battery.
#1 can be switch or breaker in Baby Box, or skip the switch and use MC4 to disconnect on the roof.
#2 and Pos bus - in the Baby Box.
It is convenient to also add #3 - loads breaker, it also goes into Baby Box.
You can skip the Baby and have #2 and #3 as fuses - not breakers - less convenient.
Battery fuse will be on or near the battery.
KE6IRJ wrote:
I have settled on the Morningstar TS-45 for my controller. Most options I want for the price and highly rated.
...
What am I missing, beside marine grade wire, 4-gauge cable?
A lot of things are highly rated, doesn't mean you need them. I wouldn't trust Amazon ratings too much, average tech level is pretty low. 2*165W should be alright with 25A controller.
Not sure about marine grade cable - you are not installing this on the boat, are you? :)
4-gauge will be enough between 2*165W panels and controller, and overkill from controller to battery. Use Voltage drop calculator, max 2% drop.
