How to Install a Spa Circuit

A spa, or hot tub, is an ideal way to relax on the weekend. Wiring the spa properly avoids a shocking surprise when you get in the water. A spa's electrical system should be protected by a GFCI breaker installed in the electrical panel. This type of breaker monitors the balance of electricity in the hot and neutral wires. The moment it senses a difference between the two conductors, it shuts down the power. An electrician can install the GFCI breaker in the panel and run the wire's to the spa, or you can do it yourself.

Non-contact voltage detector
Wire strippers
Screwdriver

Instructions

- 1
  Turn off the power to the circuit you are working on at the home's distribution panel. Confirm the power is off by touching a non-contact voltage detector to the wire's insulation.
- 2
  Remove the access panel from the side of the spa and locate its electrical connections. If these are unclear, refer to the spa's owner's manual.
- 3
  Loosen the four terminals with a screwdriver. Strip 3/8 inches of insulation off the end of the black, red, green and white wires coming from the GFCI breaker in the distribution panel.
- 4
  Slide the green wire under the ground terminal and tighten it down. Insert the white wire into the neutral terminal and tighten it down.
- 5
  Insert the red wire into the hot (L2) terminal and tighten it down. Slide the black wire into the hot (L1) terminal and tighten it down.
- 6
  Contact your local building authority to inspect your work before turning on the power.

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