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Unread 06-06-2019, 07:41 PM   #1
Join Date: Nov 2008
Location: sunnyvale, ca
Posts: 2,008
electric question

I have garden shed with 50amp sub panel in it. There's few outlets and a light in the shed. Outlets are rarely used to charge battery tools.
I am planning to put hot tub close to shed. I need 50amp breaker for hot tub, can I hook up the tub on sub panel I have? Main panel is far and new wiring will require lots of digging....
thank you. Michal
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Unread 06-06-2019, 09:23 PM   #2
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Join Date: Nov 2006
Location: NW Arkansas, Ozark Mountains
Posts: 11,851
The first thing I would do is verify the size of the cable supplying the sub panel. It wouldn't be unheard of to use a 30 amp cable with a panel that's rated higher.

It should be a #6 cable to run a 50 amp, so if that's the case you could run the tub, but theoretically that would be all. Normally a person would run more than needed, which in your case would be better if it was a #2 or 100 amp cable.

Considering the downside, which could be an electrical fire, I would run a separate cable for it. Those tub heaters can pull some amps in the winter time.

Maybe you'll get lucky and the cable was oversized.

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