Circuit Protection is the intentional installation of a ‘weak link’ into an electrical circuit. For example, the use of a fuse or circuit breaker, often referred to as a circuit protection device or CPD. The ‘weak link’ will be broken in the event of a fault.
A CPD automatically prevents dangerous or excessive amounts of current or a short circuit in an electrical conductor.
The faults usually arise from ‘Overcurrent’s‘ (short circuits and overloads) or ‘Earth Leakage‘.
CPD devices are important because they ensure that under a fault condition, a high fault current does not flow. This protects the installed devices, but more importantly ensures someone is not injured or potentially killed as a result to the fault.
Examples of CPD’s we provide include fuses, RCD’s, RCBO’s, MCB’s and consumer units.