Wire Size For Hot Tub 50 Amp

The electrician is running all buried wiring in 1 rigid sch 40 grey pvc electrical conduit.

Wire size for hot tub 50 amp. Question can i run 8 guage wire the rest of the way from my gf. While a hot tub or backyard spa is a great way to relax and have fun the installation involves conforming to specific electrical requirements. Power hook up to the hot tub must be single phase 240 volt 4 wire two hot one neutral one ground. Route the 4 wires into the equipment area for final hook up to terminals inside the control panel hard wired.

For most full sized spas or hot tubs the national electrical code nec requires. How to choose the right wire gauge for your hot tub. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f. 6 copper wire can support up to 55 amp at a temperature of 60 degree celsius.

Per the owner s manual our hot tub requires a 240v 50 amp 4 wire electrical hook up using awg 6 copper wire. I am replacing my hot tub and the new one asks for 50 amp service and 6 guage wire. There are 4 wires on the pump green grounded white red and black. For a 240 volt hot tub a 10 gauge wire with a 30 amp breaker setup is ideal.

Installing a new hot tub. It s best if a bigger size wire is used. For a 50 amp breaker an 8 gauge wire setup would be recommended. Wiring a 50 amp 240 volt two pole gfci breaker for a spa whirlpool or hot tub isn t difficult.

Wiring for a full featured portable hot tub has to be done correctly as we all know that water and electricity don t mix. Refer to your owner s manual for wire requirements. 6 wire is strongly recommended. In most cases a 50 or 60 amp breaker provides power to a secondary gfci box which powers the spa pack controller.

Fifty amp copper wire for copper wire no. I connected my hot tub with 240 volt 50 amp gfci at the spa terminals i checked between the red and black wires and have 240 volts but i cannot get 240 volts at the pumps which will not turn on. I have a 20 and 30 amp now and that has run my existing hot tub fine. It does require an understanding of the national electrical code nec and the local electrical codes covering the wiring of spas.

The recommended wire size is 6 awg copper. 8 thwn can be used. I have a 50 amp breaker panel with 8 guage wire running from it to my gfci panel. It is recommended that at a minimum you should use a 12 gauge wire.

Select the tabs below to follow the project from planning through hook up. The spa must be hooked up to a dedicated 220 240 volt 50 60 amp breaker and gfci.