Yes, RCCB (Residual Current Circuit Breaker) is necessary for a home as it provides protection against electric shocks and fire hazards caused by electrical faults. It constantly monitors the electrical circuit and instantly disconnects the power supply when it detects a fault, thereby preventing any potential harm to the occupants of the house. RCCB is particularly important in homes that have appliances that are susceptible to electrical leakage, such as washing machines and refrigerators. Installing an RCCB is a simple and cost-effective measure that can significantly improve the safety of your home.