Originally Posted by Rich.M
I use a 40 amp breaker with my 30 amp controller. The controller has built in" protection circuit " that kicks in at 40 amp. The breaker is really there to protect against catastrophic failure and a welding situation from a short. Your breaker is probably right for your 200 watts at about 11 -12 amps . Also there is something called cloud edge effect when the sun comes out from behind a cloud on a partially cloudy day. Solar out put can reach 125% of panel rating. I've seen that happen on my panels at high noon. Did you choose a controller ?
Yes I bought the 200w RV kit from Renogy that comes with Adventurer-30A PWM Charge Controller. I didn't upgrade or change any component, only added two fuses.
Yesterday I spent less than three hours wiring all the cables. It was much easier than I expected for my W model. I will post a step-by-step procedure and photos once I'm completely set up. Basically I wired the cables down the fridge vent from roof top (easy), opened the panel on the side (outside) to catch the cables, removed caulking to expose the hole for the propane line (easy), wired cables down to the compartment for water heater below stove (easy), then from inside coach, followed the drainage pipe to under the sink where controller will be mounted on the other side (easy). To wire the battery cables I had to work from both top and bottom to remove a lot of caulking to expose a hole for wires connecting battery and power control box. The hole is behind the heat/AC duct in the corner so it was tricky (hard). Finally, working underneath the coach, I wired the battery cables through another (uncovered) hole on the battery compartment.
This method requires just two holes to be drilled, one on side panel where controller is mounted outside for cables to go inside, and one on the bottom panel of the sink for the battery cables to go down to the lower compartment where the drawer is.
The sticky feet will arrive today. I will start sanding, cleaning, mounting the feet, and finish panel installation, cable connections within the week.
An interesting observation, while I was at my RV storage, I got on the roof and looked around. I didn't see a single solar panel on any of the dozen units around me. I was surprised.