A Short Discussion on Different Types of Electrical Device Boxes

Electrical device boxes are a type of instrument that houses wiring devices such as switches, outlets, or receptacles for keeping them out of sight and protect them from external abuse and tampering. You can install them in the walls or ceilings, and they accommodate wiring devices for various types of fixtures such as ceiling fans, lights, etc.

Made of metal and plastic, a device box is a part of the electrical conduit or wiring system in a building. Steel stud boxes are widely used in industrial, commercial, and residential applications. Many boxes have adjustable mounting options for easy installation and positioning.

Types of Electrical Device Boxes

Types of Electrical Device Boxes

Various types of electrical device boxes are available in the market. You can divide them based on the number of gangs and their sizes, the materials they are made of, and their shapes. Let’s check out a few of them:

Gangable Device Boxes

A gangable device box may have one, two, or multiple gangs with the depths of the gangs ranging from 1/2-inch to more than 3-inch deep. They provide the option of customizing a box to accommodate two or more devices.

Types of Electrical Device Boxes

Metal & Plastic Boxes

Metal boxes are required in case if you use metal conduit to run wiring to the electrical box. On the other hand, you can use either plastic or metal boxes if you are using non-metallic wiring.

The metal boxes can be one-piece or two-piece construction. The interlocked or gangable type is commonly used for containing switch and outlet boxes.

Plastic boxes are typically made of different types of molded plastic. The materials that are used for their making are fiberglass, phenolic resin, and most commonly PVC. They are always one-piece construction.

Round Pan Boxes

They are a kind of metal boxes that look like round pans. They are capable of supporting wall-mounted or ceiling light fixtures weighing up to 50 pounds. Some boxes are even compatible with ceiling mounted fans.

Octagon and Round Boxes

These boxes are suitable for the installation wall-mounted and ceiling lighting fixtures up to 50 pounds. The ones made of metal are typically used for housing an outlet box o switch in those surface-mounted installations that use metal conduit.

The round boxes come with ‘ears’ for wall or ceiling installations.

4-inch Square Boxes

These boxes provide the maximum volume for more than one connectors and conductors. They can be installed in both ceilings and walls for receptacles, switches, and lighting fixtures.

Box Extenders

These devices look like a box or ring, and they usually have no back on them. A device box extension is attached to the main electrical device boxes and thereby provide additional space for housing wiring devices and connectors.