What is the purpose of adding an extension ring to an outlet box?

The purpose of adding an extension ring to an outlet box is to increase the capacity. An extension ring is designed to create additional space for wiring and devices, particularly when the original outlet box does not have sufficient capacity for the number of wires or devices being installed. This is especially important in situations where multiple cables or connections need to be accommodated, ensuring safe and compliant electrical installations.

By extending the box, it helps to prevent overcrowding and allows for better management of wires, which can enhance the overall safety and functionality of the electrical system.