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    • NQN240
    The Hager MCB 2P 20kA B-40A 2M miniature circuit breaker protects circuits against overloads and short circuits. Rated 40A, B-curve, 2 poles, it delivers high breaking capacity: Icu 40kA at 230V, 20kA at 400V (Ics 15kA), Icn 10kA IEC 60898-1. For 415V AC, 50/60Hz. Compact 2 modules (35 mm), IP20, 6kV impulse, -25…70°C. Screw/biconnect terminals for 1-35 mm². Ideal for residential and commercial panels.
    EAN
    3250614645655
    VPE
    1 piece

    Miniature circuit breaker 3P 2A 6/10kA Curve C 400V AC 3 Modules NQN240

    Phase out product: please contact your electrical wholesaler for availability

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    Miniature circuit breaker 3P 2A 6/10kA Curve C 400V AC 3 Modules

    NQN240

    • Accessories
    • Technical characteristics
    • catalog.pageproduct.title_sustainability.h2
    • Documentations

    product.page.accessories.title

    product.page.accessories.associated-products

    • Modular phase busbar 1 product.page.accessories.products-available
    • Terminal cover 1 product.page.accessories.products-available
    • AOB type AC 4 product.page.accessories.products-available
    • AOB type A-HI 1 product.page.accessories.products-available
    • Protective cap/strip for phase busbar 1 product.page.accessories.products-available

    product.page.accessories.title-modal

    • Modular phase busbar
    • Terminal cover
    • AOB type AC
    • AOB type A-HI
    • Protective cap/strip for phase busbar
    • KDN263B

      Insulated busbar 2P 63A fork 10mm² 57M

      €0.00  / *
    • MZN120

      Terminal shield / screw shield for MCB

      €0.00  / *
    • BF241

      Earth leakage add-on block 2P 40A 300mA AC Class

      €0.00  / *
    • BD241

      Earth leakage add-on block 2P 40A 30mA AC Class

      €0.00  / *
    • BF264

      Earth leakage add-on block 2P 63A 300mA AC Class

      €0.00  / *
    • BE264

      Earth leakage add-on block 2P 63A 100mA AC Class

      €0.00  / *
    • BF263

      Earth leakage add-on block 2P 63A 300mA A high immunity Class

      €0.00  / *
    • KZN023

      Endcap for busbars KDN 2 poles and 3 poles

      €0.00  / *

    Technical characteristics

    Elec­tric current
    • Rated current IN
      40 A
    • Rated service breaking capa­city Ics under 230 V AC according to IEC 60947-2
      15 kA
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu AC IEC 60947-2
      20 kA
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 400 V AC IEC 60947-2
      20 kA
    • Rated current at -15°C
      57.27 A
    • Rated current at -10°C
      55.35 A
    • Rated current at -5°C
      53.43 A
    • Rated current at 0°C
      51.51 A
    • Rated current at 5°C
      49.59 A
    • Rated current at 10°C
      47.68 A
    • Rated current at 15°C
      45.76 A
    • Rated current at 20°C
      43.84 A
    • Rated current at 25°C
      41.92 A
    • Rated current at 30°C
      40 A
    • Rated current at 35°C
      38.75 A
    • Rated current at 40°C
      37.5 A
    • Rated current at 45°C
      36.24 A
    • Rated current at 50°C
      34.99 A
    • Rated current at 55°C
      33.74 A
    • Rated current at 60°C
      32.49 A
    • Rated current at 65°C
      31.23 A
    • Rated current at 70°C
      29.98 A
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 230 V AC IEC 60947-2
      40 kA
    Archi­tec­ture
    • Type of pole
      2P
    • Curve
      B
    Capa­city
    • Number of modules
      2
    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 - 415 V
    • Type voltage supply
      AC
    • Rated insu­la­tion voltage Ui
      500 V
    • Rated impulse with­stand voltage Uimp
      6000 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
    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
    • Power dissip­a­tion at IN
      6.70 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
      35 mm
    • Depth
      70 mm
    Endur­ance
    • Elec­tric endur­ance in number of cycles
      4000

    catalog.pageproduct.title_sustainability.h2

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

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    REACH declaration NQN240
    PDF
    RoHS report NQN240
    PDF

    Downloads

    • Image NQN240  | Hager UK

      Product Image NQN240

    • ProductECDeclaration

      Image Declaration of conformity en-US 2026-07-15  | Hager UK

      Declaration of conformity en-US 2026-07-15

      PDF
      274,42 kB
      Image UKCA Declaration of Conformity  | Hager UK

      UKCA Declaration of Conformity

      Declaration of conformity en-GB 2024-10-02

      PDF
      653,93 kB
    More documentation

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