Some spas can be connected to 110 or 220 volts. The wire connection to the GFCI may vary depending on the amperage. Spas connected to 220 volts must be connected with a 6/3 or 8/3 gauge wire and a 40 or 60 amp circuit breaker. Also, the wire must be copper. Your electrician will be able to determine the appropriate type of wire for your spa.
What are the amperage and voltage requirements for my spa?
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