Thanks everyone for the great questions and feedback!
smkettner wrote:
The auxiliary circuit protection probably should be after the inverter fuse or you are at 500a rating on the battery cable. Might skip the inverter switch, just remove the fuse for long term not in use.
Where is the solar?
I wish I could afford a solar setup at this point ... maybe a year or two down the road :) There is plenty of room on the roof for maybe 3 or 4 panels.
I went with 400a as recommended by Magnum for the peak surge current of the MS2812, which is documented at 360 amps.
I tapped the two aux circuits before the inverter fuse for two reasons. Firstly, if for some reason the inverter blows that big arse fuse, my coach lights, water pump, DSI fridge/hot water will still work until I can get another big fuse bolted in. Secondly, to stay away from any electrical noise that the inverter will dump on the DC bus (not sure it's a valid concern, my experience with switching noise is at the microelectronic level not 100s of amps.)