A Residual Current Circuit Breaker (RCCB) is designed to protect against electrical shocks by detecting and interrupting imbalanced currents caused by faults in the electrical system. The most common causes of an RCCB tripping are faulty appliances, damaged wiring, or moisture in the circuit. Other causes can include earth leakage due to improper grounding, overloading of the electrical system, or short circuits. It is important to identify and address the cause of the RCCB tripping to prevent potential electrical hazards and ensure the safe operation of the electrical system.