Residual Current Circuit Breaker Rccb. It is a leakage current sensing device which can automatically measure and disconnect the circuit whenever a fault occurs in the associated circuit or the current exceeds the rated sensitivity. Eas rccb residual current circuit breakers 4p residual current circuit breakers ac rating in 30 ma 63 a ez9r03463 voltage rating ue 400 v 50 hz width in 9 mm modules 8 certified compliant sans 767 iec 61008 1 additional feature endurance o c electrical 2000 cycles mechanical 5000 cycles conditional rated short circuit current inc idc.
As we know there are several types of miniature circuit breakers like mccb which works on different operational principle and has different safety purposes. It senses earth leakages and residual currents and ensures protection against electric shock. A residual current device rcd residual current circuit breaker rccb or ground fault circuit interrupter gfci is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock.
Residual circuit current breaker rccb it is a device that has a mechanical switch attached with a residual tripping feature attached to it.
This is to minimize the risk of human life. Rccb does not have overload and short circuit protection features built in. Rccb residual current circuit breaker falls under the category of wide range of circuit breakers. Residual current circuit breaker rccb is a mechanical switching device intended to make carry and break currents under normal service conditions and to cause the opening of the contacts when the leakage current attains a given value under predefined conditions.
