The Nissin NR-103 Leakage Current Circuit Breaker is a 3-pole residual current device designed to provide leakage protection for three-phase electrical systems. It is rated for 100 A with a 30 mA tripping sensitivity, ensuring rapid disconnection under earth fault conditions while minimizing nuisance trips for normal operation. Designed for line voltages of 380–440 V and with a 3 W power rating, this NR-103 is well suited for industrial or commercial panels that require reliable leakage protection for three-phase circuits.
