Which device is used to plug in electrical units?

The duplex receptacle is a common electrical device designed to allow multiple devices to be plugged in simultaneously. It consists of two sockets, which can accommodate two electrical plugs, making it convenient for connecting various electrical units within a single outlet space. This design is prevalent in residential wiring and permits the use of multiple household appliances or gadgets in one location.

In addition, duplex receptacles often come with built-in safety features such as ground fault circuit interrupters (GFCI) for preventing electric shock in wet areas. These characteristics make duplex receptacles a reliable and versatile choice for powering various electronic devices.

Other options, like an outlet, refer to a general electrical access point, and while they serve a similar purpose, they do not specify the dual socket feature that distinguishes duplex receptacles. Grounding sockets emphasize safety through proper grounding but do not inherently convey the multiple plug capability. A power bar is also useful for connecting multiple devices but lacks the integrated design aspects and safety features that are standard in duplex receptacles.