The store will not work correctly in the case when cookies are disabled.
Location Malaysia
  • Contact us
Image Logo  | Hager
  • Better buildings. Better tomorrows.

  • Menu
    • Products
    • Solutions
    • Inspiration & knowledge
    • Support
    • About us
    Account
    • Home
    • Catalogue
    • Modular devices
    • Protec­tion and accessories
    • Mini­ature circuit breakers (MCB)
    • MT125A
    EAN-Nr.
    3250614507052
    Packaging
    12 Pieces
    • Mini­ature circuit breakers (MCB)

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

    Add to a list
    Add to a list

    Login to create a product list

    You need to be logged into your myHager account to create product lists

    Create an account Sign in

    MCB 1P 6kA B-25A 1M

    MT125A

    • Accessories
    • Technical characteristics
    • Environmental value
    • Documentations
    • More products
    Download the sheet

    Complete your system

    Optional accessories

    • Under­voltage and over­voltage release 1 products available

    Complete your system

    • Under­voltage and over­voltage release
    • MZ214

      Combined low and overvoltage release OVA/LVR 230VAC

      0.00 €  / *

    Technical characteristics

    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
    Safety
    • Ingress Protec­tion (IP) class
      IP20
    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

      Hager Product data sheet MT125A

      MCB 1P 6kA B-25A 1M

      PDF
    • Declaration of conformity

      Image EU Declaration of Conformity  | Hager

      EU Declaration of Conformity

      Declaration of conformity en-GB 2025-12-08

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

      UKCA Declaration of Conformity

      Declaration of conformity en-GB 2025-11-13

      PDF
      813,16 kB
    More documentation

    Discover our other products of this range

      5
    • 1
      MU206A - MCB 2P 6kA C-6A 2M
      MU206A
      MCB 2P 6kA C-6A 2M
    • 2
      MU216A - MCB 2P 6kA C-16A 2M
      MU216A
      MCB 2P 6kA C-16A 2M
    • 3
      MU210A - MCB 2P 6kA C-10A 2M
      MU210A
      MCB 2P 6kA C-10A 2M
    • 4
      MU220A - MCB 2P 6kA C-20A 2M
      MU220A
      MCB 2P 6kA C-20A 2M
    • 5
      MT350A - MCB 3P 6kA B-50A 3M
      MT350A
      MCB 3P 6kA B-50A 3M

    Product catalogue

    • Product catalogue
    • Energy distribution
    • Energy management
    • Wiring accessories
    • Connected homes

    Contact and Support

    • FAQ
    • How-to videos
    • Downloads
    • Find a distributor
    • Contact us
    • Newsletter

    Who we are

    We deliver safe and simple electrical solutions, from energy distribution 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.

    More about us

    Fol­low us

      • Privacy
      • Cookies
      • Report a vulnerability

    © Hager Group