Residual Current Operated Circuit Breakers are amperometric protection devices which trip when the system leaks a significant current to earth. These Circuit Breakers continuously calculate the vector sum of the single-phase or three phase system line currents and while the sum is equal to zero, they allow electricity to be supplied. These Circuit Breakers are provided with overload protection that ensures safety of usage. Residual Current Operated Circuit Breakers come in different models to suit specific requirement.
