What is the maximum number of 12 AWG conductors allowed in a 4 in. x 1 1/2 in. octogon box?

Prepare for the Residential Electrical Exam. Study with flashcards and multiple choice questions, each question includes hints and explanations. Get exam ready!

The maximum number of conductors allowed in a given electrical box is determined by the box’s volume and the size of the conductors being used. In this case, a 4-inch by 1 ½-inch octagon box has a specific volume capacity, which can accommodate a limited number of 12 AWG conductors based on National Electrical Code (NEC) guidelines.

For 12 AWG conductors, each conductor requires a certain amount of volume—typically 2 cubic inches per conductor. Additionally, the box must also accommodate the volume for other items such as devices, fittings, and any splices that may be housed within the box.

When calculating the capacity of the 4 in. x 1 1/2 in. octagon box, it is found that assuming standard box fill calculations, it can hold a maximum of 6 conductors. Therefore, the correct answer reflects the NEC requirements that dictate this limitation.

It's important to consult the NEC and local building codes when determining the maximum number of conductors for any given box to ensure safety and compliance.

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