RGM5L-50 RCBO electronic circuit breaker, applied in the circuit of AC 50 Hz (or 60Hz), the rated isolating voltage is 230V of 2 pole,400V of 3 pole, and the rated current is below 50A. When a person get an electric shock or the current leakage of the electricity network is out of the limiting value, the RCBO can cut the malfunction power quickly in the short time, to keep safe of the persons and the electric equipment, furthermore it protects the overloading circuit and the short circuit, and also be used in the infrequently switching of the circuit under the normal conditions. The RCBO complies with the standard of GB 14048.2 idt IEC 60947-2, GB6829 idt IEC60755