In this day and age, many homes still have an old style fuse board which do not have MCB (Miniature Circuit Breakers) and the latest 10 way 17^th Edition Dual RCD (Residential Current Devices) so therefore need to be upgraded for the safety of your household.

MCB (Miniature Circuit Breakers) are fitted to the newer consumer units to replace the old type fuses with wires. So for instance if you are at home and suddenly the lights go out you would normally have to check every switch in the house to identify the problem. With the MCB all you need to do is check your fuse box and you will notice either a button or a lever that is the opposite way to the others and the label will tell you what area the fault is in. When the MCB usually trips it is because something has overloaded the circuit or that a short circuit has occurred somewhere in the household.