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Circuit breaker, ComPact NSX1200 TM-DC, 2 poles, 1200A, 50kA/600VDC, without bare cable connector


  • What does the end of commercialization mean ?

    End of commercialization is the last date APC will accept an offer for this reference. However, after Sales Services (repair, spare parts, etc.) will continue until its end of life.

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Product nameComPact NSX DC
Range of productComPact NSX630...1200 DC
Device short nameNSX1200 DC
Product or component typeCircuit breaker
Device applicationDistribution
Number of poles2P
Protected poles description2t
[In] rated current1200 A at 40 °C
[Ue] rated operational voltage600 V DC
Network typeDC
Suitability for isolationYes conforming to EN/IEC 60947-2
Utilisation categoryCategory A
[Icu] rated ultimate short-circuit breaking capacity50 kA Icu at 300 V DC 1P conforming to IEC 60947-2
50 kA Icu at 600 V DC 2P conforming to IEC 60947-2
Performance levelN 50 kA 600 V DC
Trip unit nameTM-DC
Trip unit technologyThermal-magnetic
control typeToggle
Circuit breaker mounting modeFixed
[Ui] rated insulation voltage600 V DC conforming to IEC 60947-2
[Uimp] rated impulse withstand voltage8 kV conforming to IEC 60947-2
[Ics] rated service short-circuit breaking capacity12.5 kA at 600 V DC conforming to IEC 60947-2
Mechanical durability5000 cycles
Electrical durability1000 cycles at 600 V In
2000 cycles at 600 V In/2
Mounting supportBackplate
upside connectionFront
Downside connectionFront
Connection pitch45 mm
Protection typeL : for overload protection (thermal)
I : for short-circuit protection (magnetic)
Trip unit rating1200 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection)Adjustable
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Long-time protection delay adjustment type trFixed
Short-time protection pick-up adjustment type IsdAdjustable
[Isd] Short-time protection pick-up adjustment range2.5...5 x In
Short-time protection delay adjustment type tsdFixed
Earth-leakage protectionWithout
Number of slots for electrical auxiliaries6 slot(s)
Width (W)185 mm
Height (H)350 mm
Depth (D)110 mm
Net weight9.4 kg
StandardsEN/IEC 60947
Product certificationsCCC
Overvoltage categoryClass II
Electrical shock protection classClass II
Pollution degree3 conforming to IEC 60664-1
IP degree of protectionIP40 conforming to IEC 60529
IK degree of protectionIK07 conforming to IEC 62262
Ambient air temperature for operation-25…70 °C
Ambient air temperature for storage-50…85 °C
Relative humidity0…95 %
Operating altitude0...2000 m without derating
2000 m...5000 m with derating
Packing Units
Unit Type of Package 1Db
Number of Units in Package 11

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Green PremiumTM label is Schneider Electric’s commitment to delivering products with best-in-class environmental performance. Green Premium promises compliance with the latest regulations, transparency on environmental impacts, as well as circular and low-CO2 products.
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