RCDs and RCBOs are protective devices found in modern consumer units. Both are designed to reduce risk in the event of certain electrical faults, but they are arranged differently and can affect how much of a property loses power when a fault occurs.

The practical difference

An RCD can protect a group of circuits, while an RCBO provides protection for an individual circuit. In practical terms, an RCBO arrangement can help limit the impact of a fault to one circuit instead of switching off a larger section of the installation.

Choosing the right protection

The most appropriate setup depends on the property and its circuits. If you are considering a consumer unit upgrade, AC Electrical can assess the installation and provide a free quote for work in Chelmsford and Essex. Learn about consumer unit upgrades.