Leakage case circuit breaker (Earth Leakage Circuit Breaker - ELCB), Rated Current (in): 250 A., Number of Poles: 3 (3P)., Operating Voltage: AC 100-440V, Differential sensitivity: 30 mA (high-speed model for protecting people)., Breaking Capacity (Icu):, 400V AC: 25 kA., 200V/230V AC: 36 kA., Technology: Equipped with active filters and DPDC circuitry to prevent untimely trips due to harmonics or surges.