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. 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. 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. Our distribution boards guide explains what they are, their uses and types, and how to connect distribution boards. This buyer's guide is designed to give you an overview of distribution boards. We will briefly explain what they are and how they are used, as well as which types of distribution. Distribution boards, often referred to as electrical panels or breaker boxes, serve as the nerve center of any electrical system. This guide covers split load vs dual RCD vs RCBO board configurations, circuit arrangement and allocation, BS 7671 labelling requirements, type testing under BS EN 61439, SPD installation, wiring best practice, and the common. A distribution board is a fixed electrical panel that divides power into circuits with protection; a distribution box is more compact or portable, used for junctions or temporary setups.