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View and Download ABB Relion REF615 applications manual online. Feeder Protection and Control Relion 615 series. Relion REF615 Controller pdf manual download.. A residual-current device (RCD), or residual-current circuit breaker (RCCB), is a device that instantly breaks an electric circuit to prevent serious harm from an ongoing electric shock.. Earth Leakage Circuit Breaker (ELCB) Earth Leakage Circuit Breaker (ELCB) is a device used to directly detect currents leaking to earth from an installation and cut the power and mainly used in TT earthing systems..
As we known,Molded Case Circuit Breaker main function is protection device from overload current and short circuit.It also have a several attachment device for.