Wire Size & fuses for solar install
I have 4 140 Watt 12v panels connected in parallel on the roof. I took the guy at Solar Blvd's advice and bought #10 AWG wire for the run to the controller. Controller is a Mornigstar TS-45 PWM. It is...
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You can do a lot better than $80 for a combiner box. Buy a 5 or 6" square PVC box at Lowes or Home Depot and add an extra top. Cut the PVC top to separate the box into 2 compartments and add 2 small ground bars, one for pos and one for neg. When your feeds come in from individual panels, splice a small flat fuse into each line and individual panels will be protected. I dropped the main feed to the controlled directly out the bottom ans sealed the box to the roof.
A bit of work can save a lot of $$$. Just take your time and keep your options open.
A bit of work can save a lot of $$$. Just take your time and keep your options open.
