Main rangeCompact range of productNSX100...250 product or component typeBasic frame device short nameCompact NSX250B device applicationDistribution circuit breaker nameCompact NSX250B poles description3P network typeAC network frequency50/60 Hz [In] rated current250 A ( 40 °C ) [Ui] rated insulation voltage800 V AC 50/60 Hz conforming to IEC 60947-2 [Uimp] rated impulse withstand voltage8 kV conforming to IEC 60947-2 [Ue] rated operational voltageAC 50/60 Hz conforming to IEC 60947-2 breaking capacity codeB breaking capacity25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-215 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-220 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-240 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 suitability for isolationYes conforming to EN 60947-2Yes conforming to IEC 60947-2 utilisation categoryCategory A pollution degree3 conforming to IEC 60947-1 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront protection typeWithout protection mechanical durability20000 cycles conforming to IEC 60947-2 electrical durability10000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-210000 cycles 690 V AC 50/60 Hz In/2 conforming to IEC 60947-220000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-25000 cycles 690 V AC 50/60 Hz In conforming to IEC 60947-2 connection pitch35 mm Environment standardsUL 508EN 60947-2IEC 60947-2 product certificationsCSAUL IP degree of protectionIP40 conforming to IEC 60529 IK degree of protectionIK07 conforming to IEC 62262 ambient air temperature for operation-35...70 °C ambient air temperature for storage-55...85 °C Offer Sustainability Sustainable offer statusGreen Premium product RoHS (date code: YYWW)Compliant - since 0819 - Schneider Electric declaration of conformity
Schneider Electric declaration of conformity
REACh Product environmental profileAvailable Product end of life instructionsAvailable Contractual warranty Warranty period18 months
Documents and DownloadsLanguage
CatalogueSizeAdd to My DocumentsUser guideSizeAdd to My DocumentsCADSizeAdd to My DocumentsCAD file (on TraceParts) for LV431390: circuit breaker basic frame, Compact NSX250B, 25 kA at 415 VAC, 250 A, 3 poles, without trip unit (Version 2.0)Instruction sheetSizeAdd to My Documents
Technical FAQsNo results found.Unfortunately, related FAQs are unavailable due to temporary technical issues. Please try again later.