I have a hot tub that I have added solar heat and I am in the process of adding some new wiring ( remote heater switch, ozonator and circulation pump).
My heater is 220v 5.5kw with only a BLACK and RED leg. It is bolted to the outside of my hot tub controllers' metal grounded box.
My Question is can I split one leg (black or red) with a relay and not have power going through my heater coil USING POWER?
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