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circuit breaker Compact NS400N - STR23SE - 250 A - 3 poles 3dShow more characteristics
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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 Contractual warranty Warranty18 months
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