Wiring Direction: Wiring between the main circuit breaker and each branch circuit breaker in the box generally goes on the left, and the wiring out of the distribution box generally goes on the right. Binding Requirements: The wires should be bound with plastic ties. A distribution box, also known as a distribution board, electrical panel, or breaker box, is an enclosure that houses electrical components responsible for distributing electricity throughout a building. Here, a double pole MCB is used as the Main MCB or Main switch. Generally, 63A MCB is used as the main switch in most of the domestic. 5 Elec-Mate's AI circuit designer generates a complete circuit schedule with suggested board layout, circuit allocation, and cable sizing for any domestic or commercial installation. What Is a Distribution Board? A distribution board (commonly called a consumer unit in domestic installations) is. A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit. Location determination: Determine the installation position of the circuit breaker according to the position of the circuit breaker installation hole on the box cover. Proper setups ensure balanced electrical loads, ground fault protection, and easy maintenance.