1. Protection against electric shock: ELCBs/RCCBs can detect imbalances in the current between the live and neutral conductors, which may occur due to an earth fault or a current leakage. When such an imbalance is detected, the ELCB/RCCB trips, disconnecting the power supply and preventing potentially fatal electric shocks.
2. Protection against electrical fires: Electrical faults, such as short circuits or overloads, can cause overheating and fires. ELCBs/RCCBs help prevent fires by detecting these faults and disconnecting the power supply before the faulty component can overheat and catch fire.
3. Protection of electrical equipment: ELCBs/RCCBs can help protect sensitive electrical equipment from damage caused by electrical faults. By disconnecting the power supply when a fault is detected, ELCBs/RCCBs prevent further damage to the equipment and reduce the chances of expensive repairs or replacements.
4. Compliance with safety regulations: In many countries, the use of ELCBs/RCCBs is mandated by electrical safety regulations and standards, such as the International Electro-technical Commission (IEC) standard IEC 60364. Installing ELCBs/RCCBs in electrical circuits helps ensure compliance with these regulations and reduces the risk of accidents or legal penalties.
5. Improved safety in wet or damp environments: ELCBs/RCCBs are particularly important in environments where there is a higher risk of electrical faults or accidents, such as bathrooms, kitchens, swimming pools, or outdoor electrical installations. In these environments, the use of ELCBs/RCCBs can significantly reduce the risk of electric shock and electrical fires.

In summary, ELCBs/RCCBs play a crucial role in improving electrical safety and protecting people, property, and equipment from potential hazards. Their use is essential for maintaining a safe and reliable electrical infrastructure.