A consumer unit and a fuse box both distribute power around your house via a number of electrical circuits.
When there’s a power surge, your consumer unit will instantly shut off the electricity on that circuit via a circuit breaker, we call this ‘tripping’. A tripped circuit breaker is easily identifiable, with the switch being in the OFF position.
Once the cause is identified and resolved, the circuit breaker can be switched back on and the power will be restored.
A fuse box uses a fuse instead if a circuit breaker. When there’s an electrical overload the fuse wire melts, that in turn makes the circuit trip. A consumer board makes fault finding easier because unlike a fuse box, you won’t need to replace the fuse before the power will go on.
Consumer boards are considered a safer, one of the reasons a fuse box is no longer compliant with current electrical regulations.
But should you replace your fuse box with a consumer unit straight away?