What Gauge Wire For 110v Hot Tub

How to choose the right wire gauge for your hot tub. Certain models of hot spring and caldera spas watkins manufacturing require special subpanel disconnects. Wiring a hot tub 50 amp gfci circuit.

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My first on the job video quickly going over how to wire a hot tub.

What gauge wire for 110v hot tub.

My first on the job video quickly going over how to wire a hot tub. It is recommended that at a minimum you should use a 12 gauge wire. Leave at least 6 inches of extra wire hanging from the spa panel. This reduces the chance of ground faults that may trip the gfci breaker due to moisture buildup in the conduit.

They have 2 separate 240v gfci breakers in the load center. Many hot tubs required a 4 wire circuit which has a separate neutral and separate ground along with the 2 conductors which provide the 240 volt circuit. In general it is best to keep the distance between the hot tub and the ground fault circuit interrupter breaker as short as possible. For a 50 amp breaker an 8 gauge wire setup would be recommended.

We recommend looking at our 6 awg thhn thwn copper building wire for a 220v hot tub that requires 50 amp service as this is the most popular. The recommended hot tub wire size is 6 awg copper. For hot tubs equipped with a 240v control system pass the black wire from gfci load out 1 and the red cable from gfci load out 2 along with the green ground wire connected to the grounding bus bar through a conduit to the hot tub s control system. During hot tub wiring copper wire is recommended with thhn thermoplastic nylon insulation.

Electrical codes and details for spa and hot tub wiring. Hot tub wiring diagrams use a gfci disconnect designed for 240v hot tubs 4 or 3 wire spa types. Wire length is also an important consideration when connecting a hot tub. For a 240 volt hot tub a 10 gauge wire with a 30 amp breaker setup is ideal.

How to wire a hot tub circuit. Beginning at the lb fitting use fish tape to pull the wires from the fitting to the spa panel. Motors armatures 6 ft gauge 2 conductor non metallic liquidtight a c whip. A 12 gauge cable is thicker and useful when you have a 20 amp breaker.

Refer to the spa owner s manual for wire gauge etc. Item 1182944 model 117210. Customers like taking advantage of the fact we cut the 6 awg thhn wire by the foot and offer the copper building wire in several different colors.