Ask Experts Questions for FREE Help !
Ask
    tdb5634's Avatar
    tdb5634 Posts: 3, Reputation: 1
    New Member
     
    #1

    Sep 11, 2007, 11:42 PM
    Hot Tub Service Wiring
    I am installing an older dimension 1 hot tub and the specs on the tub label say 240V/30A for power requirement. Most info I have read and seen online says to use a 50A double pole breaker in my power supply box but is this correct or would I use a 30A? And what gauge of 4 wire line would I use for either, I planned to use #8AWG-Cu.

    Also wondering if NEC code still allows to use a GFCI breaker at main power box and simple power disconnect outside 5ft or more from the tub or do I have to use an external GFCI that also works as the disconnect which does satisfy my local code for such and a standard breaker at the box?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
     
    #2

    Sep 12, 2007, 04:32 PM
    Always refer to the manufacturers instructions and nameplate ratings to determine the minimum size of circuit rating.

    You may use # 8 wire, but if you use Romex cable then you can only protect the #8 with a 40 Amp breaker.

    If you use any other cable or pulled THHN wires through a conduit, then you may use a 50 amp breaker on #8.


    Sure the GFI breaker can be at the panel, the benefit is that the entire circuit is now GFI protected. For convenience , you may want to consider having the GFI breaker closer to the tub, you may use it as the service disconnect switch at the tub.

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Wiring hot tub [ 7 Answers ]

When running wire from electrical box to hot tub should I use conduit (outdoor) or is there under ground rated 240v wire. Also what is appropriate wire size?

Wiring of a hot tub. [ 1 Answers ]

We just had a free hot tub giving to us. We already have 220 in our house. We just need some help getting it wired. It is an older Jacuzzi model. Can some one provide us with a diagram or instructions.

Expense to add electrical service for Hot tub [ 4 Answers ]

I am trying to find an average of what to expect to pay for electrical service (220) to be installed for my hot tub

Hot tub wiring [ 1 Answers ]

I'm wiring a subpanel for my hot tub. I know the white wire from the breaker goes to the neutral bar, but does the neutral wire from the hot tub connect to the neutral bar or the neutral terminal on the GFI breaker?

Hot Tub wiring [ 2 Answers ]

I installed a gfi breaker at the main box but wanted to double check my work. The neutral white wire from breaker goes to the ground bar. But does the solid copper ground lead go their also? Thanks


View more questions Search