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What is the difference between ELCB and RCCB?
Okay, so what's the main difference between the two?
The main difference is in how they operate. ELCBs detect small earth leakage currents and disconnect the power supply, while RCCBs detect the residual current imbalance and disconnect the power supply. In other words, ELCBs are more sensitive to small earth leakage currents, while RCCBs are more sensitive to larger residual current imbalances.