Wiring question for old spa

Old 06-05-18, 08:12 PM
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Wiring question for old spa

I have a Thermospas 2000 made in 1994. No manual and mfg doesn’t have one either.
The wiring for this spa is three wire not four. No neutral.
Previous owner had 3 Prong 50A plug & cord.
I wired it up the same and everything is working.
Spa is installed inside my garage, not outside.
Should I install a QO250GFI in the house load center? “This QO 50 Amp Two-Pole GFCI Breaker is great for covering multiple circuits in a damp area which could pose an electrical shock hazard, such as a bathroom or kitchen countertop. A thermal-magnetic tripping system detects both surges and long-term overloads. This breaker is compatible with QO load centers and NQOD panel boards.“
Old 06-05-18, 08:41 PM
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Yes.... you should definitely install a GFI breaker for protection. I'm guessing you have a Square D QO panel. A QO panel uses stab lok breakers whereas NQOD is usually a bolt in breaker used in commercial application.

Your two hot wires from the spa will connect to the breaker. There will be a white wire tail on the breaker that connects to the neutral bar. There will not be a neutral wire connected to the neutral lug on the breaker.

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