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circuit breaker Compact NB250N - TMD - 175 A - 3 poles 3dShow more characteristics
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Main range of productCompact rangeCompact product nameCompact NB250N device short nameCompact NB250N product or component typeCircuit breaker device applicationDistribution poles description3P protected poles description3t network typeAC network frequency50/60 Hz [In] rated current250 A at 50 °C [Ui] rated insulation voltage690 V AC 50/60 Hz conforming to IEC 60947-2 [Uimp] rated impulse withstand voltage6 kV conforming to IEC 60947-2 [Ue] rated operational voltage500 V AC 50/60 Hz conforming to IEC 60947-2 breaking capacity codeN breaking capacity15 kA at 480 V AC 50/60 Hz conforming to NEMA AB1 HIC30 kA at 240 V AC 50/60 Hz conforming to NEMA AB1 HIC15 kA Icu at 415 V AC 50/60 Hz conforming to IEC 60947-215 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-218 kA Icu at 380 V AC 50/60 Hz conforming to IEC 60947-230 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-27.5 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 [Ics] rated service breaking capacity15 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-29 kA at 380 V AC 50/60 Hz conforming to IEC 60947-23.75 kA at 500 V AC 50/60 Hz conforming to IEC 60947-27.5 kA at 415 V AC 50/60 Hz conforming to IEC 60947-27.5 kA at 440 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 rating175 A protection typeOverload protection (long time) pollution degree3 conforming to IEC 60529 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront mechanical durability8000 cycles electrical durabilityCategory A: 1000 cycles 440 V AC 50/60 Hz conforming to IEC 60947-2 connection pitch35 mm local signallingPositive contact indication height161 mm width105 mm depth86 mm Environment standardsIEC 60947-2 product certificationsLCIEKEMAASEFAASTA IP degree of protectionIP40 conforming to IEC 60529 IK degree of protectionIK07 conforming to IEC 60529 ambient air temperature for operation-25…70 °C ambient air temperature for storage-50…85 °C Contractual warranty Warranty18 months
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