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    • Residual current circuit breakers (RCCB)
    • CF240B
    EAN-Nr.
    3250611663379
    Packaging
    1 piece
    • Residual current circuit breakers (RCCB)

    RCCB 2P 40A 300mA AC Class CF240B

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    RCCB 2P 40A 300mA AC Class

    CF240B

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

    Complete your system

    Optional accessories

    • Mech­anic accessories for low-­voltage compon­ents 1 products available
    • Auxil­i­aries contact block 1 products available

    Complete your system

    • Mech­anic accessories for low-­voltage compon­ents
    • Auxil­i­aries contact block
    • LZ060

      Heat dissipation insert

      0.00 €  / *
    • CZ001

      Auxiliary contact for RCCB 2(1C+1O) 6A 240V AC

      0.00 €  / *

    Technical characteristics

    Archi­tec­ture
    • Type of pole
      1P+N
    Elec­tric current
    • Rated current
      40 A
    • Rated residual oper­ating current Idn
      300 mA
    • Breaking and opening capa­city Idm
      0,63 kA
    • Rated condi­tional short-­cir­cuit current Inc according to EN61008-1
      10 kA
    • Rated current -25°C
      40 A
    • Rated current at -20°C
      40 A
    • Rated current -15°C
      40 A
    • Rated current -10°C
      40 A
    • Rated current -5°C
      40 A
    • Rated current at 0°C
      40 A
    • Rated current 5°C
      40 A
    • Rated current 10°C
      40 A
    • Rated current 15°C
      40 A
    • Rated current at 20°C
      40 A
    • Rated current 25°C
      40 A
    • Rated current 30°C
      40 A
    • Rated current 35°C
      40 A
    • Rated current at 40°C
      40 A
    • Rated current at 45°C
      38 A
    • Rated current at 50°C
      37 A
    • Rated current 55°C
      34 A
    • Rated current 60°C
      30 A
    • Rated current 65°C
      26 A
    • Rated current 70°C
      21 A
    Install­a­tion, mounting
    • Nominal tight­ening torque top terminal
      2,80 - 2,80 Nm
    • Nominal tight­ening torque down terminal
      2,80 - 2,80 Nm
    • Type of top connec­tion for modular devices
      Screw terminal
    • Type of bottom connec­tion for modular devices
      bicon­nect
    • Nominal tight­ening torque
      2,80 - 2,80 Nm
    Voltage
    • Rated oper­a­tional voltage Ue
      230 - 230 V
    • Type voltage supply
      AC
    • Rated insu­la­tion voltage Ui
      500 V
    • Rated impulse with­stand voltage Uimp
      4000 V
    • Max. oper­ating voltage
      253 V
    Frequency
    • Frequency
      50 - 50 Hz
    Capa­city
    • Number of modules
      2
    Compat­ib­ility
    • Suit­able for DIN Rail
      Yes
    Safety
    • Ingress Protec­tion (IP) class
      IP20
    Connec­tion
    • Cross-sec­tion of input and output with screws, for massive conductors
      1 - 25 mm²
    • Cross-sec­tion of input and output with screws, for flex­ible conductors
      1 - 16 mm²
    Power
    • Total power loss under IN
      3,20 W
    Use condi­tions
    • Max. Alti­tude
      2000 m
    Endur­ance
    • Elec­tric endur­ance in number of cycles
      2000
    • Number of mech­an­ical oper­a­tions
      4000
    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

    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

    RCCB 4P 40A 30mA A Class
    PDF
    23,23 MB
    Hager REACH declaration CF240B
    PDF
    Hager RoHS report CF240B
    PDF

    Downloads

    • Image CF240B  | Hager

      Product Image CF240B

    • Product datasheet

      Image Hager Product data sheet CF240B  | Hager

      Hager Product data sheet CF240B

      RCCB 2P 40A 300mA AC Class

      PDF
    • Installation manual

      Image Installation manual en-GB 2023-01-16  | Hager

      Installation manual en-GB 2023-01-16

      PDF
      871,51 kB
    • Flyer

      Image RCD selection  | Hager

      RCD selection

      Flyer en-GB 2025-08-25

      PDF
      307,19 kB
    • Catalogue

      Image Technical Specifications SG  | Hager

      Technical Specifications SG

      Catalogue en-GB 2026-01-27

      PDF
      3,27 MB
    • Declaration of conformity

      Image EU Declaration of Conformity  | Hager

      EU Declaration of Conformity

      Declaration of conformity en-GB 2025-08-26

      PDF
      672,76 kB
    More documentation

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    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.

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