Hot Tub Grounding and Neutral Requirements
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GFCI Wiring and Connections for Hot Tub Electrical Circuit Panel: Essentials for your installation, including the required GFCI ground fault protection and circuit wire size. © By: Dave Rongey |
Hot Tub Electrical Circuit Panel Wiring
[ad#block]Electrical Question: I have a hot tub sub panel that has the ground and neutrals on a shared bar. I’m selling the house and the home inspector said to separate the ground and neutral but I only have one bar can I just simply add another? Is this common?
This electrical question came from: Shawn, a Homeowner from Anchorage , Alaska.
Dave’s Reply:
Thanks for your electrical question Shawn.
Wiring and Connections for Hot Tub Electrical Circuit Panel
- Some panels are sold this way but the inspector is correct, the electrical wiring for hots tubs does require separation between the ground and the neutral wires.
- An additional terminal strip or bar may be added, and I’m assuming that you will need a ground bar which will be mounted directly to the hot tub panel enclosure.
- The neutral terminal strip should not be bonded with the ground and should be insulated from the enclosure of the hot tub sub panel.
- The ground wire should then be separated from the neutral and the GFCI Circuit Breaker should be tested to make sure that it functions.
More about Hot Tub Electrical Wiring
Hot Tub Wiring
Hot Tub Wiring Diagram Information
- Electrical Codes and Details for Spa and Hot Tub Wiring.
- Essentials for your installation, including the required GFCI ground fault protection and circuit wire size.
Electric panel
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This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
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Hi Debbie,
Typically a #8 solid copper wire is bonded to a terminal lug on the pump motor, or to a built in terminal of the casting of the motor. The motor should run even if it is not grounded, however by code, and for your protection, the ground wire must be attached as described.
Dave
I have a Softub brand hot tub and the power kept kicking off and on and when I took the cover off the pump/motor unit, I found the ground strap was not connected at one end. I have a photo but I guess I cannot send it here. I cannot see where it is supposed to connect and I am hoping that is the problem, not grounded, motor will not run, correct? Any idea where this end of ground strap gets attached? Thank you. Debbie
Hello,
I have a pool that was installed 3 years ago. I am now having an above ground hot tub put in. My electrician says that he will use the same ground rod used by the pool equipment for my hot tub ground. Is this okay to do? Or should a separate ground rod be used for the hot tub?
Also the manual says that the reinforcing rod or mesh in the concrete spa pad should be attached to a bond wire. My electrician says he knows what to do with this. Is this where you connect a #8 wire to the steel in the concrete to the hot tub?
Thanks,
John (homeowner in California)