yes, I like that you're thinking outside the 'box'... well done, and manufacturers should take note. Give us customers more options when it comes to what devices are one what breakers, or their own breakers, and how we can best 'manage' them when on less than 50a shore power.
Right now I am on 110v residential plug in power at my sister's townhouse. It's amazing how many hoops I have to jump through to keep items online without flipping the breaker - I run an additional extension cord out the bottom of my main slide in order to provide 15a supply to some additional items that might draw too much current for the coach connection, such as hair dryer, toaster, fans, etc.
The main incoming 50a to 30a to 110v connection is mainly to keep the batteries charged so the genny doesn't have to run in this close quarters neighborhood.
The Turners 2014 Thor Palazzo DP 33.3 35' Bunkhouse
BlueOx, '14 Ford Fiesta, DishHD, KingTailgater2, WifiRanger
50k+miles, 200+ parks, 47 states&Canada provinces, since Aug'14