... RCCB) with Test Button for Regular Inspection 400V,4Pole low voltage Residual Current Circuit Breaker (RCCB) with Test Button for Regular Inspection ... A residual current circuit breaker is an device that disconnects a circuit ... 61008IEC 61008Rated Current (In) A16, 25, 40, 6316, 25, 40, 63Sensitivity mA30, 100, 300, 50030, 100, 300, 500Rated Voltage (Un) ...