See? Good and evil. An RCD (or GFCI in the States) is a kind of circuit breaker that trips when the amount of current in the hot and neutral mains power lines aren’t equal and opposite ...
Nowadays, complete protection, including Miniature Circuit Breakers (MCBs), Residual-current devices (RCD), Art Fault Detection Devices (AFDD), and Surge Protection Device (SPD), is providing ...