Main rangeCompact product nameCompact NSX product or component typeCircuit breaker device short nameCompact NS250N device applicationDistribution poles description1P protected poles description1t network typeAC network frequency50/60 Hz [In] rated current220 A ( 65 °C )250 A ( 40 °C ) [Ui] rated insulation voltage750 V AC 50/60 Hz IEC 60947-2 [Uimp] rated impulse withstand voltage8 kV conforming to IEC 60947-2 [Ue] rated operational voltage277 V AC 50/60 Hz conforming to IEC 60947-2 breaking capacity codeN (25 kA) AC breaking capacity25 kA Icu at 220 V AC 50/60 Hz conforming to IEC 60947-225 kA Icu at 277 V AC 50/60 Hz conforming to IEC 60947-2 [Ics] rated service breaking capacityIcs 25 kA 220 V AC 50/60 Hz conforming to IEC 60947-2Ics 25 kA 277 V AC 50/60 Hz conforming to IEC 60947-2 suitability for isolationYes conforming to IEC 60947-2 utilisation categoryCategory A trip unit nameTM-D trip unit technologyThermal-magnetic trip unit protection functionsLI trip unit rating160 A ( 40 °C ) protection typeOverload protection (thermal) LShort-circuit protection (magnetic) I pollution degree3 conforming to IEC 60947 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront mechanical durability10000 cycles electrical durability10000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-25000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2 connection pitch35 mm local signallingPositive contact indication long time pick-up adjustment type IrFixed long time pick-up adjustment range0.8...1 x In instantaneous pick-up adjustment type IiFixed instantaneous pick-up adjustment range1250 A height161 mm width35 mm depth86 mm Environment standardsEN/IEC 60947UL 508 product certificationsCCCMarineEAC 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 Offer Sustainability Sustainable offer statusGreen Premium product RoHS (date code: YYWW) REACh Product environmental profileAvailable Product end of life instructionsAvailable Contractual warranty Warranty period18 months 18 months
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