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range of product: NSX400...630 device short name: Compact NSX400N circuit breaker name: Compact NSX400N poles description: 3P network type: AC network frequency: 50/60 Hz [In] rated current: 400 A ( 40 °C ) [Ui] rated insulation voltage: 800 V AC 50/60 Hz conforming to IEC 60947-2 [Uimp] rated impulse withstand voltage: 8 kV conforming to IEC 60947-2 [Ue] rated operational voltage: 690 V AC 50/60 Hz conforming to IEC 60947-2 breaking capacity code: N breaking capacity: Icu 30 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2,Icu 42 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2,Icu 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2,Icu 85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2,85 kA at 240 V AC 50/60 Hz conforming to UL 508,85 kA at 240 V AC 50/60 Hz conforming to NEMA AB1,Icu 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2,Icu 22 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2,50 kA at 480 V AC 50/60 Hz conforming to UL 508,42 kA at 480 V AC 50/60 Hz conforming to NEMA AB1,20 kA at 600 V AC 50/60 Hz conforming to NEMA AB1,20 kA at 600 V AC 50/60 Hz conforming to UL 508 [Ics] rated service breaking capacity: Ics 10 kA 660/690 V AC 50/60 Hz conforming to IEC 60947-2,Ics 11 kA 525 V AC 50/60 Hz conforming to IEC 60947-2,Ics 30 kA 500 V AC 50/60 Hz conforming to IEC 60947-2,Ics 50 kA 380/415 V AC 50/60 Hz conforming to IEC 60947-2,Ics 42 kA 440 V AC 50/60 Hz conforming to IEC 60947-2,Ics 85 kA 220/240 V AC 50/60 Hz conforming to IEC 60947-2 suitability for isolation: yes conforming to EN 60947-2,yes conforming to IEC 60947-2 utilisation category: category A pollution degree: 3 conforming to IEC 60947-1