This device is essentially a attached to it. So basically it will only break the circuit when there is a leakage current flowing to earth. The tripping time is such as to minimise the risk to human life.
RCCBs usually have a fault making and . This means that they can handle a fault of 1 kA on their own if it is a fault to earth.
Type B residual current device disconnects the power if the earth leakage current is detected as dangerous. If the earth leakage current is equal to or less than 10mA, then the Type B residual current devices would not trip because this current amount is not dangerous. The electric car will continue to get charging without any interruption. The Type B residual current devices will immediately trip the circuit and disconnect the power supply for higher currents. Like this, Type B residual current devices will protect the circuits from danger.
1.Protection against the effects of sinusoidal alternating earth fault currents
2.Protection against indirect contacts and additional protection against direct contacts
3.Protection against fire hazard caused by insulation faults
4.Controlling and Switching
5.Used in residential building, non-residential building, energy sources, industry and infrastructure






