50 or 30 amp

StephenH, what you’re looking at wouldn’t actually be rated for a wet location. It might work for you in practice, you’d probably want to close it up and test it to see how watertight it was.

Lostagain, you’re doing fine. That box and breaker would not only work but it would be fully rated and code compliant I think, your only problem is going to be mounting. NEMA3R boxes have to be mounted vertically well above ground to stay dry. If you attached it to a piece of pipe or steel stake and drove that in the ground youd be fine but I’m not sure that would always be practical.

GlueGuy, I think the water resistant fuse and fuse holder I found was made by littelfuse. Made for fusing things like parking lot area lighting so you’d need to mechanically protect it in some kind of enclosure but probably a waterproof one is unnecessary. StephenH’s one might work fine for that.

Thanks. I'll look into it.

Inline, I would cut the outer layer of the cord in the center to find the positive conductor. I would strip enough to be able to cut the positive conductor and then cut it. Then strip the ends enough to attach to the terminals. That would then need to be wrapped and then sealed in the waterproof enclosure. The ends would need to be outside that enclosure, of course so that the 50A plug could be plugged into the outlet and the 30A socket would be available for the RPod's power cord.

One other thought. Get lostagain’s lowcost listed RV outlet and breaker box. Hardwire a 6awg 50A rated cord and 50A plug to it.

Permanently mount it on a convenient place onthe trailer tongue or bumper. If you want to use a 50A RV service plug the 50A cord to it then your existing 30A cord from the new box to the trailer connector. When not in use wrap up the 50A cord and clip it to the trailer. Dispense with the dogbone. Should be a pretty inexpensive solution and straightforward installation.

Just a thought.