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Electrical Requirements For Your Hot Tub

5 Key Electrical Requirements For Your Hot Tub

1. All 240V spas must be permanently connected (hard-wired) to the power supply. 120V spas may use a G.F.C.I. cord, plugged into a dedicated grounded outlet. Supplying power to a spa that is not in accordance with these instructions will void both the independent testing agency listing and the manufacturer’s warranty.

2. The power supplied to the spa must be on a dedicated circuit with no other appliances or lights sharing the power.

3. To determine the current, voltage, and wire size required for the spa configuration to be connected, refer to the following:

  • Wire size must comply with local codes.
  • Wire size is determined by length of run from breaker box to spa and maximum current draw.
  • We recommend copper wire with THHN insulation
  • All wiring must be copper to ensure adequate connections. Do not use aluminum wire.
  • When using wire larger than #6 (10mm2), add a junction box near the spa and reduce to short lengths of #4 (10mm2) wire between the junction box and the spa.

4. The electrical supply for the spa must include a suitably rated switch or circuit breaker to open all ungrounded supply conductors. The disconnection point must be readily accessible to the spa’s occupant. Check with local municipalities for additional code requirements.

5. The electrical circuit for the spa must include a suitable GFCI as required by NEC Section 680- 42.

IMPORTANT: When installed in the United States, the electrical wiring of this spa must meet the requirements of the National Electric Code, ANSI/NFPA 70-1999, and any applicable state or local codes. The electrical circuit must be installed by an electrical contractor and approved by a local building / electrical inspector.

Calspa.com Spa Pre-Delivery Guide Page 4 12/28/04

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