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circuit breaker Compact NS250H - STR22SE - 250 A - 4 poles 4dShow more characteristics >
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Main range of productCompact NS100...630 product or component typeCircuit breaker device short nameCompact NS250H circuit breaker nameCompact NS250H device applicationDistribution poles description4P protected poles description3t3t + N/24t neutral positionLeft network typeACDC network frequency50/60 Hz [In] rated current220 A 65 °C250 A 40 °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 codeH breaking capacity50 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-210 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-235 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-265 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-270 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2100 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2100 kA at 240 V AC 50/60 Hz conforming to NEMA AB1 HIC18 kA at 600 V AC 50/60 Hz conforming to UL 50835 kA at 600 V AC 50/60 Hz conforming to NEMA AB1 HIC65 kA at 480 V AC 50/60 Hz conforming to NEMA AB1 HIC65 kA at 480 V AC 50/60 Hz conforming to UL 50885 kA at 240 V AC 50/60 Hz conforming to UL 508 [Ics] rated service breaking capacityIcs 10 kA 660/690 V AC 50/60 Hz conforming to IEC 60947-2Ics 100 kA 220/240 V AC 50/60 Hz conforming to IEC 60947-2Ics 35 kA 525 V AC 50/60 Hz conforming to IEC 60947-2Ics 50 kA 500 V AC 50/60 Hz conforming to IEC 60947-2Ics 65 kA 440 V AC 50/60 Hz conforming to IEC 60947-2Ics 70 kA 380/415 V AC 50/60 Hz conforming to IEC 60947-2 utilisation categoryCategory A trip unit nameSTR22SE trip unit technologyElectronic trip unit rating225 A ( 70 °C )250 A ( 20 °C )237.5 A ( 60 °C ) protection typeInstantaneous short-circuit protectionProtection of the fourth poleShort time short-circuit protectionOverload protection (long time) pollution degree3 conforming to IEC 60947 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront mechanical durability20000 cycles electrical durability10000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-220000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-2 connection pitch35 mm local signallingPositive contact indication neutral protection setting0.5 x IrNo protection1 x Ir 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 range>= 11 x In display typeLED height161 mm width140 mm depth86 mm Environment standardsIEC 60947-2 product certificationsLCIEASEFAASTAKEMA 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 Warranty period18 months
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