Main rangeCompact product nameCompact NSX product or component typeCircuit breaker device short nameCompact NSX400HB1 device applicationMotor poles description3P protected poles description3t network typeAC network frequency50/60 Hz [In] rated current320 A at 65 °C [Ui] rated insulation voltage800 V AC 50/60 Hz [Uimp] rated impulse withstand voltage8 kV [Ue] rated operational voltage690 V AC 50/60 Hz Breaking capacity codeHB1 75 kA 690 V AC breaking capacity85 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-280 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-275 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 [Ics] rated service breaking capacity85 kA at 500 V AC 50/60 Hz conforming to IEC 60947-280 kA at 525 V AC 50/60 Hz conforming to IEC 60947-275 kA at 660/690 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 trip unit nameMicrologic 2.3 M trip unit technologyElectronic trip unit protection functionsLSoI pollution degree3 conforming to IEC 60664-1 Complementary control typeToggle mounting modeFixed mounting supportBackplate upside connectionFront downside connectionFront mechanical durability15000 cycles electrical durability12000 cycles 440 V In/2 conforming to IEC 60947-23000 cycles 690 V In conforming to IEC 60947-26000 cycles 440 V In conforming to IEC 60947-26000 cycles 690 V In/2 conforming to IEC 60947-2 connection pitch45 mm local signallingLED 95 % IthLED ready motor tripping class20105 complementary motor protectionPhase unbalance protection typeL : for overload protection (long time)So : for short time short-circuit protection with fixed delayI : for instantaneous short-circuit protection trip unit rating320 A at 65 °C long time pick-up adjustment type IrAdjustable 9 settings long time pick-up adjustment range160...320 A long time delay adjustment typeFixed [tr] long-time delay adjustment range10 s at 7.2 x Ir for trip class 10120 s at 1.5 x Ir for trip class 520 s at 7.2 x Ir for trip class 20240 s at 1.5 x Ir for trip class 1026 s at 6 x Ir for trip class 20480 s at 1.5 x Ir for trip class 205 s at 7.2 x Ir for trip class 513.5 s at 6 x Ir for trip class 106.5 s at 6 x Ir for trip class 5 thermal memory20 minutes before and after tripping short-time pick-up adjustment type IsdAdjustable 9 settings [Isd] short-time pick-up adjustment range5...13 x Ir short-time delay adjustment typeFixed instantaneous pick-up adjustment type IiFixed instantaneous pick-up adjustment range4800 A height255 mm width140 mm depth110 mm net weight6.05 kg compatibility codeNSX400 Environment overvoltage categoryClass II electrical shock protection classClass II standardsEN/IEC 60947 product certificationsCCCEACMarine 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 REACh Regulation EU RoHS DirectivePro-active compliance (Product out of EU RoHS legal scope)
EU RoHS Declaration
Mercury freeYes RoHS exemption information China RoHS RegulationChina RoHS declaration
Product out of China RoHS scope. Substance declaration for your information
Environmental Disclosure Circularity Profile Contractual warranty Warranty18 months
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