NB1-63DC Application: DC LV modular circuit breaker Poles: 1, 2, 4 Short-circuit capacity: 6kA Nominal voltage: 250 / 500 / 1000V DC Nominal current: 1, 2, 3, 4, 6, 10, 13, 16, 20, 25, 32, 40, 50, 63A Accessories: XF9 – auxiliary contacts block XF9J – alarm contacts block S9 – shunt release V9 – undervoltage release Standard: IEC/EN 60947-2