... 3-in-1. MCB, circuit breaker.DRNL-32 earth leakage circuit breakers are mainly applied to the AC 50Hz/60Hz ... rated 240V and 32A or below, They have the electric leakage (electric shock), overload, short circuit and so on protection functions ... distribution system.Protech the circuitry against overload, short circuit and leakage and always better the best.