Why does RCCB trip when lightening strikes?

A Residual Current Circuit Breaker (RCCB), aka Residual Current Device (RCD) aka GFI/GFCI/GCFI (Ground Fault Interrupter) is built to trip when it senses even a small current on the ground line (or, as it’s often called outside North America, the “earth” line). read more

Well generally circuit breakers dont trip when lightening strikes. Lightening arrestors are there to protect the the equipments and transmission lines from lightening. Just in case if it fails the circuit breaker can trips due to excess voltage. read more

Re: Lightning Causes ELCB Tripping 11/10/2014 4:38 pm First of all, thanks for prompt reply =) the ELCB that I used previously is wynex supplied by developer.. read more