circuit breaker Compact NS400N - STR23SE - 250 A - 3 poles 3dShow more characteristics
Main range of productCompact NS100...630 product or component typeCircuit breaker device short nameCompact NS400N circuit breaker nameCompact NS400N device applicationDistribution poles description3P protected poles description3t network typeACDC network frequency50/60 Hz [In] rated current400 A at 40 °C320 A at 65 °C [Ui] rated insulation voltage750 V AC 50/60 Hz conforming to IEC 60947-2 [Uimp] rated impulse withstand voltage8 kV conforming to IEC 60947-2 [Ue] rated operational voltage690 V AC 50/60 Hz conforming to IEC 60947-2750 V DC conforming to IEC 60947-2 breaking capacity codeN breaking capacity85 kA at 240 V AC 50/60 Hz conforming to NEMA AB1 HIC22 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-285 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-230 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-242 kA at 480 V AC 50/60 Hz conforming to NEMA AB1 HIC42 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-250 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 [Ics] rated service breaking capacity85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-222 kA at 525 V AC 50/60 Hz conforming to IEC 60947-230 kA at 500 V AC 50/60 Hz conforming to IEC 60947-242 kA at 440 V AC 50/60 Hz conforming to IEC 60947-250 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 suitability for isolationYes conforming to IEC 60947-2 utilisation categoryCategory A trip unit nameSTR23SE trip unit technologyElectronic trip unit rating250 A protection typeOverload protection (long time)Instantaneous short-circuit protectionShort time short-circuit protection pollution degree3 conforming to IEC 60947 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront circuit breaker CT rating250 A mechanical durability15000 cycles electrical durability12000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-26000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2 connection pitch45 mm local signallingPositive contact indication long time pick-up adjustment type IrAdjustable 48 settings long time pick-up adjustment range0.4...1 x In long time delay adjustment typeFixed [tr] long-time delay adjustment range90…180 s 1.5 x Ir3.2…5 s 7.2 x Ir5…7.5 s 6 x Ir short-time pick-up adjustment type IsdAdjustable 8 settings [Isd] short-time pick-up adjustment range2...10 x Ir short-time delay adjustment typeFixed [tsd] short-time delay adjustment range0.04…0.06 s instantaneous pick-up adjustment type IiFixed instantaneous pick-up adjustment range11 x In display typeLED height255 mm width140 mm depth110 mm Environment standardsIEC 60947-2 product certificationsASTAASEFALCIEKEMA IP degree of protectionIP40 conforming to IEC 60529 IK degree of protectionIK07 conforming to EN 50102 ambient air temperature for operation-25…70 °C ambient air temperature for storage-50…85 °C Packing Units Package 1 Weight5.204 kg Package 1 Height1.820 dm Package 1 width1.800 dm Package 1 Length3.200 dm Contractual warranty Warranty18 months
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