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In a box fill calculation, each 12 AWG conductor counts as how many cubic inches?

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  1. 2.0 cubic inches
  2. 3.0 cubic inches
  3. 2.25 cubic inches

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References

  1. EC&M: NEC Requirements for Sizing Outlet Boxes www.ecmweb.com/code-basics/nec-requirements-sizing-outlet-boxes Checked 2026-10-10.

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