Return to the Electrical Wiring Forum | Post a Follow-Up

6# or 8# wire- again

Posted by indywood (My Page) on
Fri, Aug 13, 10 at 22:36

looked through earlier posts, and didn't quite find this question answered- I have an older, smaller hot tub that I'm about to hook back up. The tag on my unit calls for a 40amp circuit, which I have via 8/3 w/gnd travelling 18 feet to the gfci disconnect. Can I stay with 8# thhn to the tub? (only about an 8' run) Here's the other thing- can I use a 50amp gfci spa panel within this 40 amp circuit (the supply breaker would trip in the event of overload, right?) I ask this after finding the 50 amp boxes to be cheaper and easier to find

Follow-Up Postings:

RE: 6# or 8# wire- again

You probably need wet rated conductors if this is an outdoor installation. For any outside parts you need to use an insulated ground and NOT 8-3 cable with a ground bare in the sheath (the code does allow such for inside runs).

If the breaker in the main panel is 40A, then the 50A GFCI serves as a GFCI and an oversized disconnect (which you need anyhow within sight of the maintenance point on the tub).

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Electrical Wiring Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here