SOLUTION

A unit of an electrical system that carries or controls electric energy as its principal function is known as a Device.

Components (such as switches, circuit breakers, fuse holders, receptacles, attachment plugs, and lamp holders) that distribute or control but do not consume electrical energy are considered devices. Devices that consume incidental amounts of electrical energy in the performance of carrying or controlling electricity are also considered devices. Some examples of these components include a switch with an internal pilot light, a GFCI receptacle, and even a magnetic contactor.

Components (such as switches, circuit breakers, fuse holders, receptacles, attachment plugs, and lamp holders) that distribute or control electrical energy but do not consume electricity. Devices that consume incidental amounts of electrical energy in the performance of carrying or controlling electricity are also considered devices. Some examples of these components include a switch with an internal pilot light, a GFCI receptacle, and a magnetic contactor.