Recommended AWG for 60 AMP Circuit
#1
03-02-12, 07:57 AM
Recommended AWG for 60 AMP Circuit
I want to run a new 60 amp circuit for a hot tub. The Maximum Current Draw (according to the manufacturer) is 48 amps. The run is about 100 feet. I was thinking of running four 6 AWG THHN wires in a 3/4" EMT conduit (2 hots, 1 neutral, and 1 ground). The run will start at the circuit panel and terminate at the outdoor GFCI, which will then run about 10 feet to the hot tub.
Is 6 AWG THHN large enough, or should I go with 4 AWG THHN in 1" EMT?
Thanks in advance.
Is 6 AWG THHN large enough, or should I go with 4 AWG THHN in 1" EMT?
Thanks in advance.
#2
03-02-12, 01:31 PM
Join Date: Mar 2006
Location: Wet side of Washington state.
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Number 6 copper should be fine. Voltage drop will be under 2%, about 4.6 volts. Be sure that the conductors are rated THHN/THWN rather than just THHN. The W means weatherproof and is necessary whenever conduit is buried or located outside.
#3
03-02-12, 05:02 PM
Member
I was thinking of running four 6 AWG THHN wires in a 3/4" EMT conduit (2 hots, 1 neutral, and 1 ground). The run will start at the circuit panel and terminate at the outdoor GFCI, which will then run about 10 feet to the hot tub.
#4
03-02-12, 08:15 PM
Member
I would use at least 1", maybe 1-1/4". It's a lot easier than using all that lube and trying to get through any bends and push slack through conduit bodies.
