Jeff Blake:

how does the relay module aid in a remote outlet if you just ran an extension cord to the back?

Thanks

 

the relay module has 3 sets of AC wires:
All are standard 3-wire

load: wired to your ac outlet of your choice
inverter: extension cord (this one is a plug)
shore power: wired to the plug you see on the left side of the panel. I have this plug also wired to my battery charger for dual purpose

this way, if shore power is unplugged, power is supplied to the load by the inverter through the extension cord. If shore power is detected, the load is powered directly from shore.