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Wednesday, November 11, 2020
Question:
Thanks for the NEC forum. How many #12 wires can I install in a 4-inch square box that is 2 and 1/8 inches deep?
Mark Reeve
A
Answer:
Hi Mark,
Thanks for the comments. The answer is found in NEC Section 314.16 and Table 314.16(A). This is a standard size box, and the cubic inch capacity is provided in the table, and the maximum number of 12 AWG conductors is provided as 13.