Certain models of hot spring and caldera spas watkins manufacturing require special subpanel disconnects.
What gauge wire for 110v hot tub.
Leave at least 6 inches of extra wire hanging from the spa panel.
The recommended hot tub wire size is 6 awg copper.
Electrical codes and details for spa and hot tub wiring.
A 12 gauge cable is thicker and useful when you have a 20 amp breaker.
Item 1182944 model 117210.
It is recommended that at a minimum you should use a 12 gauge wire.
Wire length is also an important consideration when connecting a hot tub.
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.
Motors armatures 6 ft gauge 2 conductor non metallic liquidtight a c whip.
During hot tub wiring copper wire is recommended with thhn thermoplastic nylon insulation.
This reduces the chance of ground faults that may trip the gfci breaker due to moisture buildup in the conduit.
How to wire a hot tub circuit.
Hot tub wiring diagrams use a gfci disconnect designed for 240v hot tubs 4 or 3 wire spa types.
For a 50 amp breaker an 8 gauge wire setup would be recommended.
They have 2 separate 240v gfci breakers in the load center.
My first on the job video quickly going over how to wire a hot tub.
Beginning at the lb fitting use fish tape to pull the wires from the fitting to the spa panel.
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.
My first on the job video quickly going over how to wire a hot tub.
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.
Refer to the spa owner s manual for wire gauge etc.
For a 240 volt hot tub a 10 gauge wire with a 30 amp breaker setup is ideal.
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.
