Circuit Breakers/Fuses: Automatically disconnect when there are overloads or short circuits. Residual Current Devices (RCDs): Detect ground faults and cut off power to prevent shock. Main Switch: Supplies on/off for the power of the. The internal structure of the distribution box is designed to safely distribute power from the main power source to multiple branch circuits. It is required to assemble switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on the screen to form a. The Distribution box system diagram mainly includes the following parts: Incoming line part: Displays the incoming line source of the distribution box, which may be a single-line incoming line or multiple-line incoming lines (such as normal power supply and backup power supply), and marks the. Distribution boards, often referred to as electrical panels or breaker boxes, serve as the nerve center of any electrical system. It helps organize, protect, and control electrical connections in residential, commercial, and industrial electrical systems.