Originally Posted by Wrinkledpants
Thanks for that! That might explain why I've seen such a wide variety of setups. Do you have a photo of your breaker/switch panels?
Reminder, this is a SMB Texas 150 Sprinter build.
Here are the light switches, water pump switch and Magnum inverter/charger panel, all located on the passenger's side, upper left and just inside the sliding side door. In this layout the first rocker switch on the left drives a solenoid that controls the main power, SMB West does this differently and has a single large switch down by the breaker panel.
And here is the circuit panel; 110 volt breakers on the left and 12 volt blade fuses on the right, located just above the floor with the Magnum inverter/charger directly behind. Three pictures, cover on, cover off and close up with cover off.
The blue tape is by me, I applied it early on when we were in new vehicle learning mode and I never saw the need to remove it.