50 amp service

Arc fault breakers function based on voltage to protect against the arcing faults. There are no thermo magnetic breakers in the market that respond to arcing faults other than those specifically designed to do so. Honestly we do not want arc fault breakers in campgrounds due to the inverters that are in are pods. They produce enough noise to cause arc fault breakers to nuisance trip. Non of us would enjoy that very much.

Todd

If there is short in the cable between the pod and the shore power, the shore power breaker should trip (regardless if it is a 30 or 50 amp).  The 50 amp breaker should require a little more short circuit current to trip than the 30 amp but it should go on a direct short.  The magnetic pick up/trip on these breakers is typically 10-20 times the handle rating of the breaker.  That is the level of currect required to trip the breakers magnetically.  The only thing that you would have to worry about would be an overload when running on the 50 amp circuit.  This being said, the 30 amp main breaker in the pod should protect against any overloads that are within the pod as they are downstream of the pod main breaker. 

Unless the short circuit happened between the pole and the pod's breaker. In most cases you would be fine, but a breaker on the adaptor is a bit safer.

Sorry, I haven't looked in a while.  Like I said they are rare.  I'll see if I can find one.

Originally posted by HuronSailor Yes, that's fine. You won't hurt the rpod by connecting your 30A RV to a 50A outlet. You will need an adapter because the outlets themselves are different. Here's the one I have: http://www.amazon.com/gp/product/B003YDY7YK/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1 When upgrading or installing new electrical service in some MI parks, they don't even install a 30A outlet anymore, just 20A and 50A.

In early Oct we stayed in a nice township park in the Apostle Island Lake Shore of Lake Superior
(For those close enough to know it's Russell Township Park between Bayfield and Cornicopia).

They had nice double electrical posts but along with the couple standard 20 amp outlets there was one 30 amp and one 50 amp. Had it been busy and/or crowded we may have been stuck with the 50 amp or 20 amp.  I broke down and bought a $9-10 adapter next opportunity.

For anyone going that way it's a nice small park (especially for a township) 35 sites with gravel parking pads along with a separate tent area. The Feds take care of the flush toilets, sinks and the town takes care of the double $2 pay showers.