Wiring a 50 amp 220 GFCI breaker to a 3-wire hot tub.

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Old 03-27-12, 05:28 PM
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Wiring a 50 amp 220 GFCI breaker to a 3-wire hot tub.

There is no neutral wire connection in this new hot tub. How is the GFCI breaker to be wired so it will function correctly?
 
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Old 03-27-12, 05:43 PM
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Do you have the installation manual? Can you point us to it online?
 
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Old 03-27-12, 05:57 PM
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Old 03-27-12, 08:29 PM
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Just put the neutral tail from the GFI breaker in the neutral buss. Connect the two hots to the breaker.
 
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Old 03-28-12, 08:14 AM
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Without a neutral return from the hot tub, how does the GFI breaker detect a fault?
 
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Old 03-28-12, 11:30 AM
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Thats exactly what it shows in the install info Ray...they recommend THHN in conduit and show black, red and green.
 
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Old 03-28-12, 02:27 PM
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Thats exactly what it shows in the install info Ray...they recommend THHN in conduit and show black, red and green.
Yes, that is why I'm thinking the breaker supplying the hot tub rather then the breaker at the hot tub needs to be GFCI or he needs to add a neutral but I'm waiting for the pros to confirm.
 
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Old 03-28-12, 02:52 PM
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The GFI will look at the outgoing power and compare it against the power that is returning on the other leg. It will function properly.
 
 

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