An assembly containing switching or protective devices (e.g. fuses, circuit-breakers, residual current operated devices) associated with one or more outgoing circuits fed from one or more incoming circuits, together with terminals for the neutral and protective circuit conductors. It may also include signalling and other control devices. Means of isolation may be included in the board or may be provided separately.
There is a wide range of distribution boards on the market, which are suitable for domestic, commercial and industrial use. Modular components may be fitted, including bells, buzzers, transformers, timers, programmers and photo-cells.