... of Poles1P, 1P+N, 2P, 3P, 3P+N, 4P Rated Current (A)1, 2, 3, 4, 6, 10, 16, 20,25 ... family power utilization with the perfect design and superior performance Residual current circuit breaker,rccb,rcbUKL1-2P 4PRated voltage:250/415V,50HzPole number ... :2P,4PRated tripping current:30mA 100mA 300mA 500mARated current:16A 25A 32A 40A 63AEnvironment capacity: Standard IEC ...