Page 7017.0 Typical Spa Wiring Diagrams17.1 Wiring diagram for North American 60 Hz Models OnlyRed (L2)PigtailNeutral BusGroundBlack (L1)GreenMainServicePanelwithGFCI2-PoleGFCIBreakerGround/Bonding Lug**2-Pole Circuit Breaker with 2-Wire Grounded Load Connection(3 Wires to Hot Tub, 2-Hot (L1-L2), 1-Ground)White (N)Black (L1)Red (L2)240 VACNo Load Neutral WireNote: service disconnect notshown in this diagram.Red (L2)Red (L2)PigtailNeutral BusGroundBlack (L1)Black (L1)GreenGFCI Sub Panel*Main Panel*2-PoleGFCIBreakerGround/BondingLug**No Load Neutral WireMain Panel with Secondary GFCI Shut-Off Box Using a2-Pole GFCI Breaker with 2-Wire Grounded Connection(3 Wires to Hot Tub, 2-Hot (L1-L2), 1-Ground)White (N)Green (Ground)*GFCI Sub Panel commonlyused when recommended GFCIdoes not install in Main Panel.Note: service disconnect notshown in this diagram.BA240 VAC
