Importance of Residual Current Circuit Breakers for Your Home

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Residual current devices, also known as residual current circuit breakers (RCCB), are devices that can help in protecting low voltage circuits against leakage faults. If current leakage is detected without current returning through neutral, it will switch off. This makes it valuable safety addition because it can also detect current leakage due to accidently human touch. At the same time, it can also protect against insulation failure. These are functions which cannot be addressed with other types of circuit breakers. So RCCB’s are a must have to provide total safety to everyone in your home or office.

Need for RCCB

When it comes to domestic circuit breakers, both the MCB and RCCB are essential. They provide protection against different types of electrical faults. The following points explain their importance and the need for these two devices:

• MCB: These circuit breakers protect against high current fault caused due to low resistance fault or short current fault.
• RCCB: These circuit breakers can detect current leakage because of insulation failure or human touch.

Benefits of Using RCCB

So the main reasons why you should install a residual current device in your home are:

• It offers protection from earth faults and leakage current
• It offers protection from voltage fluctuation
• It will automatically disconnect the circuit if the rated sensitivity of the device gets exceeded

Main Features of Quality RCCB

Some of the main features of high quality RCCBs include:

• Wider rating, ranging from 0.5A to 63A
• Protects against both short circuit and overload for lighting and different types of loads
• Enables circuit identification for quicker maintenance
• Increases safety by indicating contact position through flag indication
• Special design for preventing incorrect cable termination

You can find different types of circuit breakers in the market, but make sure to choose the one that offers all the important features. It should clearly indicate the contact position with the help of Flag Indication, using red for ON and green for OFF. There should be large cable terminals which should be suitable for both aluminium and copper cables. Check for bi-stable clip, because it can help avoid the need for reworking the wiring if a device needs to be changed, thus offering convenience.

Ratings & Sensitivity

When choosing residual current breakers, it is important to consider the ratings and sensitivity. For residential installation, RCCB units up to 63A are considered to be suitable depending on your home’s load. You can find devices with ratings starting from as low as 0.5A, so you can find the right unit to address your specific needs.

When it comes to sensitivity, 30mA is considered as the ideal parameter because a human can bear that level of electric shock. But you can still find circuit breakers with sensitivity up to 10mA, which will make your circuit even safer. You should make the right choice based on the recommendations by your local electrician or the contractor working on your home.

So consider these benefits, features and considerations when choosing the most suitable RCCB unit for your home. These circuit breakers are a must-have for any home, providing more comprehensive safety. Make sure to choose a unit with all the key features and the right ratings and sensitivity.

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Created on Oct 30th 2017 00:13. Viewed 313 times.

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