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What type of wiring is used for a hot tub?

Your spa panel must be installed no less than 5 feet from your new hot tub. This distance is needed to prevent possible electrocution risks. Power and wiring requirements for hot tubs vary depending on their size. For installation, most spa panels require either a 50 or 60-amp, 220-240-volt ground fault circuit interrupter (GFCI) or a 15-amp, 120-volt GFCI.