Instead of using the 6-inch cord that FWC supplied, I put a waterproof 30-Amp twist-lock connector (that matches the FWC power inlet) on the end of a regular 25-foot 14 AWG extension cord. I carry another similar extension cord with a single 15-Amp receptacle on the end. This is all I need. Most campsites that I have visited have regular 15-Amp or 15/20-Amp outlets. I carry adaptors that allow me to plug my meager little cord into 30-Amp and 50-Amp (240-Volt) outlets, in case that is all there is.
Unless you have an air conditioner in there, these campers don't draw much current. Fifteen Amps is more than adequate. The FWC 30-Amp power inlet and main breaker seems like an overkill. I guess older campers with incandescent lights and less-efficient refrigerators used more power. Or maybe they just use the same unit on all there models.
In my Fleet, I installed an industrial-strength surge protector, connected right to the incoming line, a 20-Amp line-noise filter and replaced the breakers with more resonable ratings: 20A main, 10A charger, 5A frige and 15A outlet.
The blue indicator light in the Furrion power inlet door is handy for verifying at a glance that the camper is getting power. With mine stored in the driveway, I can even see that indicator from inside the house. (Sometimes the breaker for the outdoor outlet trips in a thunderstorm.)
Most of the stuff I plug in inside the camper runs on either 12 Volts or 5 Volts (US
. I've installed some USB outlets for charging our phones, flashlights, etc. A 12-Volt charger for my laptop makes it easy to use it in the camper but I also carry the AC charger. My CPAP requires 19 Volts DC, so I built in a power supply for it and outlets by the head of the bed.
- Bernard