110V AC & 12V DC layout plans

DrewE wrote:
Basically, you need a transfer switch whenever there are or could be more than one 120V AC supplies that are wired to power a single circuit. Plugging the shore power cord into the generator is one good way of eliminating the need for a separate transfer switch (and the system that TakingThe5th described is basically the same thing).

I note that you show both a 30A and a 15A power inlet. You would need some sort of a transfer switch there if you have both, since plugging in one would otherwise energize the other. That could lead to all sorts of evil things. (If, for example, you have a generator connected to the 15A connection when you plug in the 30A one, you have the generator energized...or, if the power is out, you backfeed the electrical grid. Also, you could end up with exposed energized male plugs, ready to shock the unsuspecting.) I would only have the 30A inlet and use an adapter when needed.

Quick couple of questions,

Is this ok for my 30A inlet hatch? I would buy it on amazon.


As for the 15A inlet, I thought I would use it when I'm hooked up to a house, on a regular outside 15A outlet, I didn't know I could simply add an adapter at the end of my regular 30A extension.
And this is what it looks like? I guess it's for horizontal 15A outlets? (like I have on my house) I would also buy this on amazon.


Can you connect the inverter to the 110V AC panel? If so would I need a transfer switch?

Maybe I could install an extension hardwired to the transfer switch, and I hook it up to the generator in my rear outside box?