Each outgoing line can be individually controlled, making it possible to isolate or maintain one section of the system without disrupting the whole. Houses protective devices such as circuit breakers, fuses, and residual current devices (RCDs). A distribution box, also known as a distribution board or panel, is the central unit that distributes incoming electrical power to various circuits. Typical components, such as switches, buttons, and indicator lights, enable easy operation and display. A distribution box is focused on electrical power distribution. Structure and Function of a Control Cabinet A control cabinet focuses on logic control and automation, not power. Simply put, the box for distributing electrical energy is called a distribution box.