What volume allowance must be provided for a device wider than a single 2-inch device box?

When determining the volume allowance for a device box that is wider than a single 2-inch device box, it is essential to reference the National Electrical Code (NEC) standards that dictate the volume allowances for boxes based on their dimensions and the number of conductors contained within them.

A wider device box would typically accommodate more wires and possibly more devices than a standard single 2-inch device box. Therefore, this type of box would require a double volume allowance in order to ensure that there is sufficient space for the conductors and devices without risking overheating or violating code safety standards. This approach is necessary to maintain proper wire management and electrical safety, as well as to comply with regulations regarding the maximum fill capacity of electrical boxes.

In essence, a wider device box necessitates a greater volume than that of a single box due to the increased capacity and the increased number of conductors and devices that it can handle. This requirement helps to prevent overcrowding within the box, which can lead to dangerous electrical conditions.