conduit fill

[Raccoon 3]

(2) 500 mcm copper and (1) 350 mcm copper THHN 90 Degree C in a 2 1/2" rigid conduit can it be done.

 

[Dennis Alwon]

(2) 500 mcm copper and (1) 350 mcm copper THHN 90 Degree C in a 2 1/2" rigid conduit can it be done.

Yes. 2 1/2" RMC Table 4 back of book = 1.946 sq. in for 40% fill.

Table 5 500 MCM THHN = .7073 * 2 = 1.4146 sq. in
Table 5 350 MCM THHN = .5242 sq. in

Total 1.4146 + .5242 = 1.9388 sq. in