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Electrical Wire and Cable

Hot Tub Shut Off Switch

How to Install an Emergency Shut Off Switch for a Hot Tub: GFCI Protection, Hot Tub Control Circuit, Hot Tub Time Clock.

Emergency Shut Off Switch for a Hot Tub
Electrical Question: I would like to install an emergency shut-off switch to a hot tub.


This electrical wiring question came from: John, a Homeowner from Connecticut.

Dave’s Reply:
Thanks for your electrical wiring question John.

How to Install an Emergency Shut Off Switch for a Hot Tub

Application: Shut Off Switch for a Hot Tub.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Electrician..
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install electrical circuit wiring. Precaution: Identify the hot tub circuit, turn it OFF and  Tag it with a Note before working with the wiring.
Notice: Installing additional electrical circuit wiring for the hot tub should be done with a permit and be inspected.

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FAQs Frequently Asked Questions and Comments

4 Responses to “Hot Tub Shut Off Switch”
  1. carol says:

    Can you confirm what the regulations are regarding a safety cut off switch, or electrical isolator on a hot tub used by the public not just for personal use.

    • Dave Rongey says:

      Hi Carol,
      Because of the number of Article Exceptions that are written into the electrical codes, each hot tub project will need to be reviewed individually where all of the environmental factors may be identified as well as the codes that will then apply.
      For example, please refer to NEC sections 680.43, 680.62, and 680.74 for more information, and then make application for your specific area or location.
      I hope this helps,

  2. Eli says:

    To hook up a hot tub do I need a disconnect or a shut off switch or both?
    Thanks for time and attention.

    • Dave Rongey says:

      Hi Eli,
      A disconnect actually shuts off the circuit power and is required near the hot tub. The circuit must be protected with a GFCI breaker.
      The hot tub itself may have a shut off switch for functions like an air blower etc.
      I hope that helps,


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