... 2.Professional of MCB 3.Leakage action current:30,100,300mA. 4P NFIN RCCB Residual Current Device (RCD),are designed for protection of ... ,farming facilities,outdoor sockets,etc.Specification: Number of Poles2P, 4PRated Current (A)16, 20, 25, 32, 40, 50, 63, 80Rated ... no)(mA)≤0.5lΔnRated Voltage (V)AC 230/240Residual Current Off-time≤0.1SShort Circuit Capacity (Icu)3000AEndurance≥4000Protection ...