Thanks for the answers, I did call the dealer and talked to the service manager. He said basically the same as you guys, to just limit what you use. The trailer will be used to sleep in only with the A.C. only running and the frig on gas only. I'll tell them no microwave.
Typical fridge heating element is only 300-400W, so if it's just A/C at night, I'd consider saving the propane and running the fridge on AC/Auto.
Microwaves are horribly inefficient. A 1000W microwave actually consumes 1500-1600W. If it's a lower power microwave like a 700W, those use about 1100W. Using them on lower power doesn't help because 50% power just means run it at 100% power 50% of the time. It's actually worse, because each power cycle means the microwave is hammering the source with surge startup current.
Watch out for coffeemakers too. Your typical paper filter cheap-o is about 900-1000W. A Keurig or other single serving machine is closer to 1300-1400W.
Basically, you're good with two of the following:
A/C
Microwave
Coffeemaker
Water heater
Resistance heater (like my Big Sky's "fireplace")
With two of those running, you can also use your fridge in AC mode, but you won't have a lot leftover.
DC loads usually aren't an issue, but they do add to the total since your DC loads are ultimately supplied by the converter drawing AC power.
Breakers don't blow instantly when they hit their rated current. Short excursions at and slightly above the 30A rating may not trigger the breaker for several seconds or even a few minutes, so you likely have some margin for error if you realize you're running 3 high drain items.
If you exceed the 30 amp limit, the only thing that is going to happen is the breaker at the power poll (or breaker box) is going to pop, killing power to the entire camper. It absolutely will not hurt the camper itself to exceed the 30 amps.
If the breaker pops, then before flipping the breaker back on, turn something off inside the camper so the total electric draw is under the 30 amps again. Flip the breaker at the power pole and all is well again.
That's ALL that's going to happen. No damage to anything.
This is true, but managing the power and avoiding the disconnect is easier on people and equipment. Breakers that are regularly tripped trip at progressively lower current until they become unable to deliver rated current and eventually become useless as they can only deliver a small fraction of their rated current. Yeah, not your breaker, but you might be the next guy on that pedestal that won't deliver 30A.