How to ensure the reliability of RCCB?

The reliability of the RCCB is ensured by the test circuit included in the residual current device. 

The current will start to flow through the test circuit once the test button is pushed. This will create an imbalance on the neutral wire present in the device that will make the RCCB trip, and you must disconnect the supply.

Therefore, you must check the reliability of the RCCB.

What are the different ratings of RCCB?

Classification can be carried out according to the residual current sensitivity, and different residual current sensitivity tripping levels have certain uses: 10mA, 30mA, 100mA, 300mA, 500mA, 1000mA

The recommended tripping level for maximum shock protection is 30mA.

A tripping level of 100 mA will still give a degree of shock protection if it’s not possible to use a 30mA device.

While a 300mA should never be used for shock protection, its purpose is to provide fire and equipment protection.

What are the advantages of RCCB?

1. Protect the false or any leakage current.

2. Automatically disconnect the circuit when the sensitivity limit is exceeded.

3. Provides the possibility of dual termination for both cable as well as bus bar connections.

4. Protection against any fluctuation in the voltage as it has a filtering device that will help guard against the transient voltage levels.