I have a narrow channel between a metal support post and a framing stud. I'm thinking of using these 3M SI-1 cable stackers and trimming off the extra slot to make it fit and running (6) 14/2 NM-B "Romex" cables (doubling up with two cables per slot in the stacker).
The instructions state when using 5-8 14/2 cables, derating should be considered.
There will be (12) 14 gauge conductors. The Cerro Wire calculator (if I'm using it correctly) states the allowed ampacity to be 13 amps.
So this means I'd need to limit the amps in each circuit in this to 13 amps via the breaker? They won't make 13A, hence effectively I'd need to go down to 10A.
There are two circuits involved. One for nine LED puck lights and two ceiling fans = 3 amps. The other is a lighting circuit as well @ approx 3 amps. So limiting to 10 amps is fine