When revising your electrical system you should consider the
addition of an AC power management system. These provide protection from miswired pedestals, high and low voltage conditions
and surge suppression. They have a remote display that shows you line loading (so you can figure out exactly how much AC you
are drawing on each leg of your box). It is best to use models that are hardwired, instead of external surge guards. Hardwired
models are theftproof, and you won't forget to put them out. The time you forget to plug it in will be the time
you really need it. They are available in 30-amp and 50-amp versions.
The Progressive Industries model 40240 (50-amp model, $494) is available
at Camping World and other outlets. I highly recommend this capability – not only do you know what is going
on with your AC loads, but you are protecting your coach AC system. From a design perspective, I prefer placing the 40240
directly “next to” the loadcenter if you are using a subpanel. If wiring the inverter in-line then place the management
system before the inverter. This will offer protection to the inverter from surges and spikes.