Which of the following statements is NOT true for an earth leakage circuit breaker (ELCB)?
1
ELCB operates very quickly when extremely high leakage current flows.
2
The protection provided by ELCB against electric shock is higher than a fuse or MCB.
3
ELCB is also called residual current circuit breaker (RCCB). It is used for the protection of earth leakage. This is arranged to. So
4
ELCB can be placed near the main board to protect the whole installation.