Taking a number of switchboards (main, and sub-boards) from circuit breakers, to modern RCBO’s (Residual current operated Circuit Breaker with Overcurrent protection) can occasionally be a bit of a challenge, but rewarding when complete. Now the final sub-circuits have over-current protection, and touch protection. Protecting both the installation and human life, should someone inadvertantly come into contact with a live condutcor or faulty piece of equipment on any of the circuits fed by the board.