Residual Current Circuit Breaker MFIN (FIN type) provides the function of isolation, switching and earth leakage protection of election of electrical circuits. And also provide the indirect protection of the operator?s body against the dangerous effects of electric current and provide the protection of the fire caused by the electrical circuit fault. The product opens a circuit automatically in the event of an earth fault between phase and earth and/or neutral and earth. The product is suitable for domestic, commercial and industrial application.