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What are the maximum amount of number twelve conductors permitted in a four inch by four inch by one and one half inch junction box?
Jessram
Table 314.16(A) and (B): a 4" square x 1 1/2" deep box is good for 21"^3 and #12AWG takes up 2.25"^3
21/2.25 = 9.33333
9 wires can fit.
<<>>
The Canadian electrical code, Table 23, will allow 12 - # 12 wires in a 344 mL box.
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