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    • Mini­ature circuit breakers (MCB and MCB Multi­polar)
    • MT125A
    EAN
    3250614507052
    Packaging
    12
    • Mini­ature circuit breakers (MCB and MCB Multi­polar)

    MCB 1P 6kA B-25A 1M MT125A

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    MCB 1P 6kA B-25A 1M

    MT125A

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

    Technical properties

    Elec­tric current
    • Rated current
      25 A
    • Rated short-­cir­cuit breaking capa­city Icn under 230 V AC according to IEC 60898-1
      6 kA
    • Rated current -15°C
      31 A
    • Rated current -10°C
      30.40 A
    • Rated current -5°C
      29.80 A
    • Rated current at 0°C
      29.10 A
    • Rated current 5°C
      28.50 A
    • Rated current 10°C
      27.80 A
    • Rated current 15°C
      27.10 A
    • Rated current at 20°C
      26.40 A
    • Rated current 25°C
      25.70 A
    • Rated current 30°C
      25 A
    • Rated current 35°C
      24.20 A
    • Rated current at 40°C
      23.50 A
    • Rated current at 45°C
      22.70 A
    • Rated current at 50°C
      21.80 A
    • Rated current 55°C
      21 A
    • Rated current 60°C
      20 A
    • Rated current 65°C
      19.30 A
    • Rated current 70°C
      18.40 A
    Archi­tec­ture
    • Type of pole
      1P
    Capa­city
    • Number of modules
      1
    Main elec­trical attrib­utes
    • Rated short-­cir­cuit breaking capa­city Icn AC according to IEC 60898-1
      6 kA
    Install­a­tion, mounting
    • Nominal tight­ening torque top terminal
      2.80 - 2.80 Nm
    • Nominal tight­ening torque down terminal
      2.80 - 2.80 Nm
    • Nominal tight­ening torque
      2.80 - 2.80 Nm
    • Type of bottom connec­tion for modular devices
      bicon­nect
    • Type of top connec­tion for modular devices
      Screw terminal
    • 360° mounting posi­tion possible
      Yes
    Voltage
    • Rated oper­a­tional voltage Ue
      230 - 400 V
    • Rated insu­la­tion voltage Ui
      500 V
    • Rated impulse with­stand voltage Uimp
      4000 V
    Frequency
    • Frequency
      50 - 60 Hz
    Connec­tion
    • Cross-sec­tion of input and output with screws, for massive conductors
      1 - 35 mm²
    • Cross-sec­tion of input and output with screws, for flex­ible conductors
      1 - 25 mm²
    • Cross-sec­tion of input with screws, for flex­ible conductors
      1 - 25 mm²
    • Cross-sec­tion of input with screws, for massive conductors
      1 - 35 mm²
    • Cross-sec­tion flex­ible conductor
      1 - 25 mm²
    • Cross-sec­tion rigid conductor
      1 - 35 mm²
    Use condi­tions
    • Degree of pollu­tion according to IEC 60664 / IEC 60947-2
      2
    • Class of energy limit­a­tion I²t
      3
    • Air humidity protec­tion
      For all climates
    • Oper­ating temper­ature
      -25 - 70 °C
    Power
    • Total power loss under IN
      3 W
    Connectivity
    • Type of connec­tion
      Screw terminal
    • Top connec­tion align­ment for modular devices
      Aligned terminal
    • Down connec­tion align­ment for modular devices
      Aligned terminal
    Dimen­sions
    • Height
      83 mm
    • Width
      17.50 mm
    • Depth
      70 mm

    Environmental value

    We are committed to bettering our environmental performance by reducing our footprint while acting as a sustainability enabler for our customers. Learn More

    RoHS conform Yes

    Certifications and documents

    MCB 1P 6kA B-16A, 1 module
    PDF
    67,85 MB
    REACH declaration MT125A
    PDF
    RoHS report MT125A
    PDF

    Downloads

    • Product datasheet

      Image Hager Product data sheet MT125A  | Hager Africa

      Hager Product data sheet MT125A

      MCB 1P 6kA B-25A 1M

      PDF
    • Declaration of conformity

      Image EU Declaration of Conformity  | Hager Africa

      EU Declaration of Conformity

      Declaration of conformity en-GB 2025-12-08

      PDF
      808,67 kB
      Image UKCA Declaration of Conformity  | Hager Africa

      UKCA Declaration of Conformity

      Declaration of conformity en-GB 2025-11-13

      PDF
      813,16 kB
    More documentation

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    Hager Africa & Near East - Who are we

    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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