Yup it will turn your 30 amp RV on alright but if things went wrong with wiring/overloads and start burning up it will NOT trip the breaker.
I have 30 amp service travel trailer. In the summer I have problems with the breakers tripping when I run ac and other things.
you mention tripping breakers when you turn the ac on and 'other' things. In a 30 amp RV you can NOT have multiple electrical appliances on at the same time.
It IS the nature of the RV beast and you just have to get used to it.
Depends, but a coffee pot and ac usually doesn't work, electric frying pans, fans and ac, and almost always a hair dryer and anything else does not work, etc. etc. In time you will get used to making sure certain items are turn offed before turning another one on.:W