Is a 12-2 NM cable counted as "3" (THREE) wires/cables/conductors since it has 3 wires in it or "1" (ONE) wires/cables/conductors?
According to 370-16 with this 3 X 3.5 X 2 box, I can put "8" (EIGHT) wires in the box (actually it's stamped 20.3 in^3), whatever a wire is defined as.
But, as pictured below, I have 9 (as per NEC I'm not counting the pigtails as they never leave the box). The outlet adds "2" (TWO), and how many do I add for each twist-cap?
Seems to me even the biggest box I can buy won't accommodate a simple 3-NM connection.
The picture below is just something I slapped together in the shop so I could visualize, IT IS NOT INTENDED FOR ACTUAL INSTALLATION! As you can see, I stripped all of the NM.