Specification :

A distribution board ( or panelboard) is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit, in a common enclosure. Normally, a main switch, and in recent boards, one or more Residual-current devices ( RCD) or Residual Current Breakers with Overcurrent protection ( RCBO) , will also be incorporated.