Mission Specialist wrote:
2. Electrical Current Rules You can hook up a 30 amp RV to a 50 amp source without concern. But if you hook a 50 amp RV to a 30 amp source and draw more than 30 amps, there is going to be a problem. Often that problem is burned wiring or damaged motors (like the A/C compressor motor in your RV). Sometimes that problem is a fire.
Don't count on circuit breakers to protect you. They certainly won't protect your A/C. Furthermore, circuit breakers can and do wear out! If your lucky, they will not close. If you are not lucky, they will not open. If you are Haley Joel Osment, you might "see dead people".
I have seen 20 amp breakers pass 50 amps without tripping. The wiring did not look very good afterward.
By your reasoning, plugging a 50A rig into a 50A outlet is dangerous - if both breakers malfunction you can draw more than 50A per line. Similarly plugging a 30A rig into a 30A outlet can be disastrous. If you go through life with that attitude you need to stay in bed rather than go off driving in an RV. There are more important things to watch our for, such as uninformed electricians who install an RV 30A outlet and wire it for 240V!
