NB310L Application: residual current circuit breaker with overcurrent protection Poles: 2, 3+N Short-circuit capacity: 6kA Nominal voltage: 230 / 400V AC Nominal current: 1, 2, 3, 4, 6, 10, 13, 16, 20, 25, 32, 40A Characteristics: B, C Type: AC, A Residual current: 30mA Standard: IEC/EN 61009-1