Max number of conductors

We would need to know the final ampacity of the conductor that you're looking for. For example after adjustment do you only need 15 amp conductors?

Welcome to the Forum. :)
 
So the maximum number of CCC's (current carrying conductors) would be 20 if using 90° C conductors and if the next size up rules in 240.4(B) do not apply.

T310.16: #10 THHN = 40 amps
T310.15(B)(3)(a): 10-20 CCC's = 50% ampacity adjustment factor
40amps *50% = 20 amps
 
Top