How many conductors allowed inside this raceway? Can this be used to add 120V circuit with 12GA THHN wiring?
1
Yes, this type of wiring can be used with this metal raceway. Fill capacity for 12 gauge THHN with an outside diameter of 0.13" is 5 conductors at 40% fill (you can use more than 5 conductors, but the more you use the harder it is to pull through and make turns). The 500 series raceway has a cross-sectional area of 0.19 square inches. Hope this helps!
