Hot Tub Wiring Size

Beginning at the lb fitting use fish tape to pull the wires from the fitting to the spa panel.

Hot tub wiring size. How to choose the right wire gauge for your hot tub. The spa must be hooked up to a dedicated 220 240 volt 50 60 amp breaker and gfci. Per the owner s manual our hot tub requires a 240v 50 amp 4 wire electrical hook up using awg 6 copper wire. A 12 gauge cable is thicker and useful when you have a 20 amp breaker.

Refer to your owner s manual for wire requirements. For a 240 volt hot tub a 10 gauge wire with a 30 amp breaker setup is ideal. Wiring a 240 volt gfci circuit for a hot tub. The recommended wire size is 6 awg copper although depending on distance and length of run could be larger.

The recommended hot tub wire size is 6 awg copper. Select the tabs below to follow the project from planning through hook up. Leave at least 6 inches of extra wire hanging from the spa panel. This is a partial list of electrical codes.

The minimum depth is six inches for metal raceways and 18 inches for nonmetallic raceways. Depends on personal level experience ability to work with tools and install the hot tub wiring. It is recommended that at a minimum you should use a 12 gauge wire. 680 71 all 125 volt receptacles not exceeding 30 amperes installed within 6 feet of the inside walls of a hydro massage bathtub shall be gfci protected.

Route the 4 wires into the equipment area for final hook up to terminals inside the control panel hard wired. 680 44 a a packaged hot tub assembly unit with a gfci requires a gfci protected circuit. This reduces the chance of ground faults that may trip the gfci breaker due to moisture buildup in the conduit. Push the wires through the lb fitting into the house and to the breaker panel leaving at least 6 inches of extra wire hanging.

The electrical connection to the hot tub must be single phase 220 240 volt 4 wire. The four wires consist of two hots one ground and one neutral and must be hard wired to the terminals inside the hot tub control box. Other codes may apply. The electrician is running all buried wiring in 1 rigid sch 40 grey pvc electrical conduit.

Wire length is also an important consideration when connecting a hot tub. If space constraints prevent wiring from being at least five feet away underground wiring should be installed in rigid metal conduit intermediate metal conduit or a nonmetallic raceway system that is listed for direct burial. A hot tub or spa pump will not function unless a few conditions allow for the operation to take place such as water. The recommended wire size is 6 awg copper.

In general it is best to keep the distance between the hot tub and the ground fault circuit interrupter breaker as short as possible.