Several distribution boxes are designed for specific use in offices or industries. Enclosed SwitchgearOne of the key components in many septic systems is the distribution box (D-box). However, not all septic systems are equipped with a distribution box. A distribution box, also known as a power distribution box or electrical distribution box, is used to distribute electrical power safely to multiple circuits. It helps organize, protect, and control electrical connections in residential, commercial, and industrial electrical systems. Distribution. This article will help you understand what shared mailboxes and distribution lists are, and what to do when you are added to one. 📝 Summary: What Are They? Shared Mailbox: A shared mailbox is an email inbox multiple people can access and manage. April 8, 2024 8:59 PM Turbotax does not allow codes 7 and G on the same 1099-R so you'll need to use 2 - 1099-Rs in Turbotax.