50 amp to 20$30 amp RV cord

X3. Really sorry, but I agree that is a bad idea too. Good concept but poorly executed as it stands. It won't be CSA approved as an assembly nor will it meet NEC. But what do I know, just an EE....

3 x #10 and 1 x #12 wires in a red marrette is too many wires and won't meet code. Set screw connectors would have been better, especially with stranded conductors.

Anyway, why go to all that trouble when you can plug the separate 20 amp power inlet into the 20A recept. on a pedestal? As well, often there are only 30 amp recepts. on pedestals.

Oh, and that is the most humongously huge image I have ever seen on the internet, lol!

CA Traveler wrote:

TNGW1500SE wrote:
Sorry about raining on your parade but it isn't safe the way you have it. Just do the same thing using a sub-panel with proper breakers.

X2

Yes and he said both plugs would not be used at the same time. However wiring them to each hot wire would allow both to be used together if desired. Plus the 20A plug. But CBs should be used.

CA Traveler wrote:
...what's your reasoning for wiring both 30A plugs to the same hot wire? They should be on opposite hot wires with CB's.

He said he wanted to be able to loan it out so I would guess that's the reason for the two types of plugs.

TNGW1500SE wrote:
Sorry about raining on your parade but it isn't safe the way you have it. Just do the same thing using a sub-panel with proper breakers.

X2

Plus what's your reasoning for wiring both 30A plugs to the same hot wire? They should be on opposite hot wires with CB's.

Please edit your post and resize your image.

Sorry about raining on your parade but it isn't safe the way you have it. Just do the same thing using a sub-panel with proper breakers.

You have a 20 amp extension cord that is hooked up to a 50 amp breaker! The only protection is the 50 amp breaker the campground supplies. You need breakers! A 50 amp main that feeds a 30 amp and one 20. Hard to do with the set up you have. To do that I would think you'd need a sub-panel.

I kind of did the same thing in my 30 amp camper. I removed the 30 amp cord and I added a 50 amp cord that powers a new sub-panel I've installed.

I feed 50 amps into that panel through a 50 amp breaker. Then I moved my A/C on one phase of that panel using a 20 amp breaker and new wiring from the sub to the old panel (where the a/c was hooked up). I run the rest of the camper off of the other phase with a 30 amp breaker using the existing 30 amp wiring.

I also ran an outlet off a 20 amp breaker on the same phase as the a/c so I can plug in an electric heater. You'd never use heat and a/c at the same time anyway. Works great! No more popping the 30 amp main. If I go to a campground that only has 30 amps I have a adapter I can put on the end of the 50 amp cord so I power up both bars in the sub panel with the same phase. Never had to do that but I could if I had to. We just camp where there's 50 amps.

"WOW" !!

That's a large illustration. :B

Two things could make this better. The size of the jpeg image could be smaller and the elimination of one 30 amp power connection. Alternatively, you could equip your breakout box with a switch so that only one 30 amp connection is powered at a time.