joebedford wrote:
I don't understand this thread. I can understand how you might get a dumb "electrician" (read "friend of a neighbor") incorrectly wire a 50A plug and put 240V into your RV but 30A? Just install a 30A 120V breaker and connect the 3 wires.
Is there a 30A 240V breaker?
How could a someone miswire this?
Actually it's just the opposite. The 50A RV plug is also a very common household plug and
it is 120/240V so very unlikely to get miswired.
But the 120V 30A RV plug looks similar to the 3 wire 240V common household dryer plug so just install a dual CB and wire the RV plug to 240V. There are a number of posts on these boards about certified electricians doing exactly that. And even more posts about "friends" doing exactly that. Modern dryer plugs are 120/240V 4 wire. Older dryer plugs are 240V 3 wire (looks similar to the 30A RV plug) which I understand was done in the 40's to save copper wire. There are also common 3 wire 240V plugs.
There are both single and dual 30A CBs.
