What is the maximum number of 12 AWG conductors permitted in a 4-11/16" x 1-1/2" square box?

To determine the maximum number of 12 AWG conductors that can fit in a 4-11/16" x 1-1/2" square box, it's essential to reference the National Electrical Code (NEC) guidelines for box fill calculations.

According to the NEC, the fill capacity of a box depends on the size of the box and the type and size of the conductors being used. For a square box, you first calculate its volume in cubic inches. A box that measures 4-11/16" by 1-1/2" has a certain fill volume, which can accommodate a specific number of conductors.

For each 12 AWG conductor, typically, you allocate 2 cubic inches for the conductor itself, and any additional space required for devices or fittings. However, the actual number can slightly vary depending on various factors such as the presence of devices or the inclusion of other equipment.

In this context, the correct answer indicates that up to 13 conductors of 12 AWG can fit within the given size limits of the box. This number aligns with the NEC's guidelines, which permit a maximum of 2 cubic inches per conductor plus allowances for other factors.

Thus,