Electrical and Installation Requirements for 220-240 Spa Systems
In the United States, most hot tub equipment is calibrated to run at 60Hz on a hard wired Ground Fault Circuit Interpreter (GFCI), and protected 220-240 AMP circuit. It is also essential that spa installation includes a connection to a dedicated 220-240 volt, 50-60 AMP breaker.
To comply with section 422-20 of the National Electrical Code, power hook-ups to the hot tub must be 240 volt 3 wire plus ground (6AWG copper). The electrical equipment packs host a copper bonding lug to connect to local ground points (at a minimum of 6AWG) and is secured to a grounded metal structure.
Although less common, in some cases (when a hot tub uses multiple heaters, pumps on control panels) as much as 80, 90 or 100 AMP is required. Remember, no power should ever be applied during electrical installation.
All cables must be routed into the equipment for final hook-up within the control panel. Electrical panels not exclusively reserved for powering the spa and are for example connected to lights or other electrically powered devices, can cause an overload resulting in “nuisance tripping”. When this occurs, breaker switches must be reset at the main electrical panel.
For hot tubs requiring 110-120 volts, also called plug-n-play spas, dedicated lines and circuits are also important. These spas operate on a standard 15-20 amp household circuit and have a GFCI built into the end plug in cord. Consult an electrician even when installing a plug-n-play tub. The electrical demand on the circuit is consistent and additional load from other appliances in the house can be a safety hazard.
If proper electrical connections are not made or wiring is completed improperly, the internal and electrical components including fuses and the electrical equipment box may become damaged. This in turn can void your warranty and more importantly create a significant safety hazard.
The National Electrical Code section 680-42 requires that Ground Fault Circuit Interpreter (GFCI) be used as a current leak channeling energy from the supply conductors to the ground and to power when a current fault is present. Regulations also require that spa users have easy access, the main disconnect installed no less than five feet away from the hot tub.
Spa owners must consult their owner’s manual for their specific model and comply with local and state electrical regulations as well as those outlined in the National electrical code and ensure spa installation is completed by a certified electrician to meet all standards.
Need assistance? Call Black Pine Spas today- (425) 771-5774 Our team is available to answer any questions you have about the electrical and installation requirements for your home hot tub. Click here to ask us anything!