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Old 02-23-2011, 07:21 PM   #1
ExHempKnight
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My brew cart has a NEMA 14-30 (L-shaped neutral blade) plug. I will eventually have a corresponding outlet in my basement brewing area, but in the meantime, I would like to plug it into my range outlet in the kitchen.

The problem with this, is that the range outlet is a NEMA 14-50 (straight neutral blade).

My idea is to buy a 4-wire range cord, a NEMA 14-30 outlet, an outlet box, and cover. I would wire the range cord to the NEMA 14-30 outlet in the outlet box, pop the cover on, plug my brew cart into it, and plug the other end of the adapter into my range outlet.

I know the amp rating is different (30 vs. 50). I'll be plugging a 30A appliance into a 50A receptacle. However, the brew cart power cord has it's own inline 30A GFCI.

Any problems with any of that?
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Old 02-23-2011, 07:48 PM   #2
Ravio11i
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Disclaimer first: This stuff can kill you make sure you're comfortable and know what your doing before you go f'ing with electricity, it can mess your day up.
Sounds like a reasonable solution, your rig will only pull 30a of the 50a available so no worries there, think of it like plugging a 115watt lamp into a 15a recepticle, the lamp is only going to pull 1a of the available 15 regardless.

Mostly the reason they have these different outlets is so you don't go the other way and plug a 50a appliance into a 30a circuit, which would blow the breaker, or worse, burn up the wires in the wall if the breaker was faulty.

Another, less complicated maybe and less costly defiantly, solution would be to just swap the plug on your brew stand with the appropriate one to plug into the 50a circuit.

Rav

 
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Old 02-23-2011, 07:55 PM   #3
adivito
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swap the plug on your brewstand. in my eyes its a much simpler solution

 
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Old 02-23-2011, 08:37 PM   #4
ExHempKnight
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Actually, I had a better idea, which will help in the portability aspect of the brew cart:



That way I can plug into 3 different types of 4-wire 220V outlets: NEMA 14-30, 14-50, and a 30-amp 4-prong twist lock.
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Old 02-23-2011, 09:06 PM   #5
adivito
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That will work, you just seem to be adding unnecessary steps.

 
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Old 02-23-2011, 09:21 PM   #6
ExHempKnight
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I do tend to do that from time to time.

Not that I plan on bringing my brew cart to a lot of places other than my basement, but it would be nice to have the outlet flexibility if I choose to do so... Instead of going to a friend's house to brew and ending up with, "ah ****... we can't brew today, you don't have the right outlet."

I'll be able to plug into a range outlet, a dryer outlet, or a twist-lock. And any other 220v outlet configurations that will work (just have to make the appropriate adapter).

More work? Yes. More expensive? Yes. But I'm strangely okay with all that lol.
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Old 02-23-2011, 09:24 PM   #7
adivito
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I typically over engineer and think everything, so I understand where you are coming from. I say do it whatever way you are comfortable with.

 
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Old 02-23-2011, 09:33 PM   #8
ExHempKnight
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Now I need to research if it's possible to adapt it to 3-wire as well. That would be most awesome.
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Old 02-23-2011, 11:16 PM   #9
stan05
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if you dont need the neutral for 120v in your rig, you can adapt to 3 prongs 240v plug.

 
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Old 02-23-2011, 11:24 PM   #10
DeafSmith
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Quote:
Originally Posted by ExHempKnight View Post
Actually, I had a better idea, which will help in the portability aspect of the brew cart:



That way I can plug into 3 different types of 4-wire 220V outlets: NEMA 14-30, 14-50, and a 30-amp 4-prong twist lock.
What about 3-prong dryer outlets (NEMA 10-30?). Still common in older houses.

 
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