Domestic Consumer Units and Circuit Protection Devices A Glossary

Home & Kitchen Ideas

When exposed to current exceeding this maximum, the electrical component may break down, melt or catch on fire. Signal breakers were introduced to ensure this does not happen by disconnecting the electricity supply when the electrical current that moves exceeds the maximum capacity that the circuit components can handle.Image result for mcb rccb

Have a look around your home at all the socket stores. The number of appliances are connected into each socket outlet? Chances are you’ve got more than the circuit is designed for. Our increasing use of electrical and electronic devices puts more pressure on our electric installations every day – sometimes to the point where the amount of electricity we use is greater than the amount that the circuit can safely give us without overheating or getting damaged. When this occurs, the circuit breaker in your switchboard will disconnect the circuit from the electrical supply.

Nearly all properties that contain an electricity supply will be fitted with a consumer device to distribute electricity to the circuits. One of the primary uses of a consumer unit is that it allows there to be different circuits mccb suppliers for use and individually protected with a signal breaker. For example there can be a separate supply of electricity for upstairs and downstairs or even outdoors too. The consumer unit is best described as the centre point for providing the wiring system for all those electrical sources found in your family such as plug electrical sockets, lighting etc.

Originally consumer units housed fuses and were called fuse panels. Miniature circuit breakers have now replaced fuses. In the event of an overburden a miniature circuit breaker can be reset by anyone, simply by moving the switch. A blend would have to be taken out and rewired by a professional which could be costly in some cases. A circuit breaker also can be used to disconnect the electricity supply allowing to securely change a light light or replace a put socket for example.

To ensure safe and more reliable circuit protection, a security device enables you to disconnect the electricity if you have an discrepancy in the electrical current. The device is called an RCD or residual current device. An RCD provides this extra amount of security as it trips away much quicker than the conventional circuit breaker. This device has got the functions of preserving lives as it disconnects so quickly it stops a human being from being electrically shocked. With the new enforcement of the seventeenth Edition Regulations there must be a residual current device installed within the consumer unit. Instead of utilizing an RCD you can also use an RCBO which is a mixture of both RCD and a small circuit breaker.

A typical example of a little device would be a car port unit which has an RCD and one circuit breaker. The RCD would be used as the primary newly arriving device and the signal breaker as the amazing device. A bigger unit could be anything up to a double stacked device, which would have two RCD’s and a main switch. This kind could provide circuit protection for up to 32 circuits. These kinds of larger units are more popular commercially or in the professional sector.