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Antler 11-21-2012 10:37 PM

Running 240v for Future Brewery
 
I'm thinking about running my electrical to my future brewing area in my basement. Right now my plan is 5500w element in an eBIAB setup with a pump. If someday I decide to upgrade to a 3 vessel system I'd like to not have to redo wiring.

Question is what amp rated cable and breaker should I go with?

bluewaterbrewer 11-21-2012 10:48 PM

I think its a 40A. Check this out if you haven't already. Got a lot of my ideas from these guys.

http://www.theelectricbrewery.com/parts-list-for-building

porcupine73 11-21-2012 10:51 PM

What would be your total wattage for the 3 vessel future system? I'm going to go with 11,000 watts for this example. That would be about 46 amperes for 11,000 watts at 240VAC.

So probably would install a spa panel near the brewing area for future use. If a 60A GFCI is available in it that should work. Then you can run hm I think it is #6 AWG copper I usually use for those runs (if it has 75C or greater rated insulation).

Antler 11-21-2012 10:58 PM

Quote:

Originally Posted by porcupine73
What would be your total wattage for the 3 vessel future system? I'm going to go with 11,000 watts for this example. That would be about 46 amperes for 11,000 watts at 240VAC.

So probably would install a spa panel near the brewing area for future use. If a 60A GFCI is available in it that should work. Then you can run hm I think it is #6 AWG copper I usually use for those runs (if it has 75C or greater rated insulation).

3 5500 watt elements would be max, 2 pumps, I'm sure all that wouldn't be running at once so I'm not sure what total wattage should be?

porcupine73 11-21-2012 11:04 PM

Ok well assuming running at the most two elements at once would be 11,000 watts then. The 60A would allow enough leeway to run the pumps and other small loads as well. 50A would be cutting it close. Goingr to 60A gives the extra 20% allowance for continuous loads (more than 3 hours) and depending on how long your run is getting #6 AWG Cu isn't going to cost all that much more than #8 so I'd just go #6 now.

Of course you could always go even larger over to a subpanel or local disconnect or spa panel, if you thought you'd want to run all three elements that'd be 16,500 watts, so about 69 amperes. Allowing the extra 20% would give about 83 amps so at that point you're looking at #4 or to go up to 100 amps #2 copper, that is going to start getting much costlier per foot. Plus that might cause you to want to bump up your service to the house, like if you were getting a 100 amp service you might want a 200 amp service instead.

Antler 11-22-2012 12:39 AM

Quote:

Originally Posted by porcupine73
Ok well assuming running at the most two elements at once would be 11,000 watts then. The 60A would allow enough leeway to run the pumps and other small loads as well. 50A would be cutting it close. Goingr to 60A gives the extra 20% allowance for continuous loads (more than 3 hours) and depending on how long your run is getting #6 AWG Cu isn't going to cost all that much more than #8 so I'd just go #6 now.

Of course you could always go even larger over to a subpanel or local disconnect or spa panel, if you thought you'd want to run all three elements that'd be 16,500 watts, so about 69 amperes. Allowing the extra 20% would give about 83 amps so at that point you're looking at #4 or to go up to 100 amps #2 copper, that is going to start getting much costlier per foot. Plus that might cause you to want to bump up your service to the house, like if you were getting a 100 amp service you might want a 200 amp service instead.

I wouldn't be using rims, so I can't imagine wanted 3 elements on at a time. 60a should be plenty.

Would I NEED a Spa panel? Or does a GFCI breaker serve the same purpose?

grandequeso 11-22-2012 12:42 AM

gfci breaker does the same.

porcupine73 11-22-2012 01:02 AM

Right, GFCI breaker in supplying panel is fine and could be argued even preferable; spa panel with GFCI I mention only because it seems popular on here.

jeffmeh 11-22-2012 01:10 AM

The spa panel with a GFCI breaker tends to be chosen because for some bizarre reason it is priced less expensively than a comparable GFCI breaker. The only other advantage to the spa panel if you are doing new wiring (4-wire) is that you can take your GFCI with you if you want to brew elsewhere.

For existing 3-wire circuits, the spa panel does give you a way to incorporate a GFCI.

Antler 11-22-2012 01:55 AM

Quote:

Originally Posted by jeffmeh
The spa panel with a GFCI breaker tends to be chosen because for some bizarre reason it is priced less expensively than a comparable GFCI breaker. The only other advantage to the spa panel if you are doing new wiring (4-wire) is that you can take your GFCI with you if you want to brew elsewhere.

For existing 3-wire circuits, the spa panel does give you a way to incorporate a GFCI.

Gotcha, won't be moving the system, so GFCI breaker I'd prefer. Hope to get this wiring done soon, so i can drywall the basement. Ill wire up the outlet and run the cable myself. An electrician friend will look it over and tie it all into my panel.

Thanks for the fast replies everybody I really appreciate it.


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