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    • HNG021U
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    3250613248079
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    • Moulded case circuit breakers

    Moulded Case Circuit Breaker h250 4P 30kA 20A TM HNG021U

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    Moulded Case Circuit Breaker h250 4P 30kA 20A TM

    HNG021U

    • Technical properties
    • Documentations
    • More products
    Download the data sheet

    Technical properties

    Elec­tric current
    • Rated current IN
      20 A
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 400 V AC IEC 60947-2
      30 kA
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 240 V AC IEC 60947-2
      35 kA
    Archi­tec­ture
    • Number of poles
      4
    Frequency
    • Frequency
      50 - 60 Hz
    Voltage
    • Rated impulse with­stand voltage Uimp
      8,000 V
    • Rated insu­la­tion voltage Ui
      800 V
    Func­tions
    • Trip unit
      TM A/A
    Main elec­trical attrib­utes
    • Magnetic protec­tion trip time
      0 - 0 ms
    Power
    • Power dissip­a­tion at IN
      18.50 W
    Endur­ance
    • Elec­tric endur­ance in number of cycles
      1,000
    • Number of mech­an­ical oper­a­tions
      4,000
    Safety
    • Ingress Protec­tion (IP) class
      IP4X
    Connec­tion
    • Cross-sec­tion flex­ible conductor
      35 - 150 mm²
    • Cross-sec­tion rigid conductor
      35 - 185 mm²
    • Connect­or/plug type
      Terminal
    Install­a­tion, mounting
    • Nominal tight­ening torque
      12 - 12 Nm
    • Mount­ing-/­Con­nec­tion Posi­tion
      Front
    Settings
    • Thermal protec­tion knob setting xIN
      0.63, 0.8, 1
    • Adjust­ment range short-term delayed short-­cir­cuit release
      0 - 0 A

    Downloads

    • Product datasheet

      Image Hager Product data sheet HNG021U | Hager

      Hager Product data sheet HNG021U

      Moulded Case Circuit Breaker h250 4P 30kA 20A TM

      PDF

    • Installation manual

      Image Installation manual International 2021-06-07 | Hager

      Installation manual International 2021-06-07

      PDF
      9,52 MB

    • Declaration of conformity

      Image Declaration of conformity en-US 2026-07-14 | Hager

      Declaration of conformity en-US 2026-07-14

      PDF
      269,24 kB
      Image MCCB h250 | Hager

      MCCB h250

      PDF
      360,91 kB
    More documentation

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    We deliver safe and simple electrical solutions, from energy distribution and cable management, to lighting control and building automation systems for commercial and residential buildings. We want to make life on our planet safer, cleaner and more enjoyable. While being easy to work with, we remain by your side throughout the entire project, cooperating, collaborating and co-creating with you.

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