A shallow outlet box can be used if it is not less than what depth?

The correct choice states that a shallow outlet box can be used if it is not less than a depth of 1/2 inch. This depth is significant because it ensures that the electrical connections and conductors can be accommodated without overcrowding or risking damage. A minimum depth of 1/2 inch allows for safe installation practices, promoting both functionality and conformance to electrical codes. This helps prevent overheating, reduces the risk of short circuits, and enables easier access for any future maintenance or modifications needed.

The reasoning for selecting 1/2 inch as the minimum depth ties back to regulatory standards that dictate the specifications for electrical installations. Ensuring that the outlet box meets this minimum depth is pivotal for safety and compliance within electrical systems.