Philip1993

Recipes 

I could use a little advice on this semi-beer related project. I'm installing a 120V/30A outlet (TT-30R) for a camper. I'd also like it to serve as an outlet for an electric HLT. I'm recycling pieces from an old hot tub feed. So far I have a 220V/50A breaker in the main panel and a 120/220V/50A GFCI breaker outside feed by 6/3. I've removed the GFCI box breaker outside the house and installed 220v/60A service disconnect breaker (no overload protection). I think I want to run 6/3 UF out to the camper location (~110ft).

Here's where I get stuck. I need 120V/30A GFCI for the camper. I would also like to be able to power an electric brew stand in the future (and more distant a 220v/50A camper upgrade). What's the best solution? Do I downgrade the main breaker and run 120V/30A x 2? or leave main breaker use 2 x 120V/30A with two GCFI's at the end. If I do that, should I save the $$$ and run 10/3 UF to the remote panel instead of 6/3?

I'm thinking I should downgrade the main (or service disconnect) to 30A, use the 50A GFCI, and install 2x 120v/30A outlets, one off each leg. This would allow me to run a camper and a kettle, or two kettles. And, if future needs require, I re-install the 50A main breaker and replace the 2 x 120v/30A with a single 220V/50A outlet.

This has a dozen potential combinations and I'm trying to see foresee any future needs without getting too crazy or busting my budget. One thing I definitely want to avoid is spending $$$, finding out it doesn't suit my needs, and having to re-do a whole bunch later. Any suggestions?

passedpawn

Recipes 

First, I am not an electrician, so this is uneducated advice.

Your 240V 50A breaker is only rated at 25A per leg. I would guess this is true for GFI's also, but I'm not sure. So, I don't think you can get 30A 120 off of one leg of a 50A breaker.

A 240V 60A GFI would allow you to run 2 x 120V 30A breakers (don't need individual GFI for those then) and probably best suit your needs. #10 for 30A, #6 for 60A

__________________
Now there's some take delight in the carriages a rolling
and others take delight in the hurling and the bowling
but I take delight in the juice of the barley
and courting pretty fair maids in the morning bright and early

Philip1993

Recipes 

Are you certain about that? If so, then why does code call for #6 wire (50A carrying) on a 220v/50A circuit?

I'm not saying your wrong, but my understanding differ. For power to balance, 220V x 50A = 11KVA 110V x 25A x2 = 5500VA. Those are two very different animals, the latter requiring only 10ga wire. Both legs should deliver 110V@50A, 180° out of phase creating a 0V return on neutral. With either leg at full load, and the other no load (110v split), the neutral return would carry at max 50A, thus requiring a #6 wire.