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    • High Power & Switching
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    • Moulded case circuit breakers
    • HDA126U
    The Hager h3 x160 TM ADJ 4P4D N0-100% moulded case circuit breaker delivers robust protection for feeders and distribution. Rated 125 A, it offers 18 kA Icu at 400 V (25 kA at 230/240 V) and adjustable thermal settings (0.63-1×In) for accurate coordination. Four-pole with 0-100% protected neutral, Ui 690 V, Uimp 8 kV, IP4X. Screw terminals for 4-95 mm² conductors. Ideal for commercial and industrial panels.
    EAN
    3250613130701
    VPE
    1 piece
    • Moulded case circuit breakers

    Moulded Case Circuit Breaker 4P 160A 18kA TM adjustable 0.63-1xIn IP4X HDA126U

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    Moulded Case Circuit Breaker 4P 160A 18kA TM adjustable 0.63-1xIn IP4X

    HDA126U

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

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    product.page.accessories.associated-products

  • product.page.accessories.see-more (33)
    • Auxil­i­aries contact block 4 product.page.accessories.products-available
    • Shunt release 5 product.page.accessories.products-available
    • Under voltage coil 8 product.page.accessories.products-available
    • Connec­tion Func­tions 4 product.page.accessories.products-available
    • AOB MCCB type A-HI 2 product.page.accessories.products-available
    • Terminal cover 4 product.page.accessories.products-available

    product.page.accessories.title-modal

    • Auxil­i­aries contact block
    • Shunt release
    • Under voltage coil
    • Connec­tion Func­tions
    • AOB MCCB type A-HI
    • Terminal cover
    • Handle for power circuit breaker
    • Locking inter­locking func­tions
    • Phase separ­a­tion func­tions
    • DIN rail adapter
    • HXA026H

      Alarm contact low level 1NO+1NC 125V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA021H

      Auxiliary contact 1NO+1NC 250V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA024H

      Alarm contact 1NO+1NC 250V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA025H

      Auxiliary low level 1NO+1NC 125V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA003H

      Shunt trip 100-120V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA005H

      Shunt trip 380-450V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA002H

      Shunt trip 48V DC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA001H

      Shunt trip 24V DC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA004H

      Shunt trip 200-240V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA055H

      UVR delayed 380-450V AC (x160-P160-x250-P250)
      €0.00  / *
    • HXA011H

      Undervoltage release 24V DC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA051H

      UVR delayed 24V DC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA015H

      Undervoltage release 380-450V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA014H

      Undervoltage release 200-240V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA054H

      UVR delayed 220-240V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA053H

      UVR delayed 110-120V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HXA013H

      Undervoltage release 100-120V AC (x160-P160-x250-P250-x630-P630)
      €0.00  / *
    • HYA015H

      Spreader x160 4P collar
      €0.00  / *
    • HYA013H

      Extended connection x160 4P collar
      €0.00  / *
    • HYA006H

      Collar terminal x160 Al 4P
      €0.00  / *
    • HYA012H

      Spreader x160 4P lug
      €0.00  / *
    • HBA126H

      Electronic earth leakage add-on block 4P 125A Idn adjustable, time delay
      €0.00  / *
    • HBA128H

      Electronic earth leakage add-on block 4P 125A Sensitivity fix
      €0.00  / *
    • HYA028H

      Terminal cover for collar terminal x160 4P
      €0.00  / *
    • HYA026H

      Terminal cover x160 4P short
      €0.00  / *
    • HYA024H

      Terminal cover x160 4P spreader
      €0.00  / *
    • HYA022H

      Terminal cover x160 4P long
      €0.00  / *
    • HXA031H

      Extended rotary handle x160
      €0.00  / *
    • HXA030H

      Direct rotary handle x160
      €0.00  / *
    • HXA039H

      Padlock (x160-P160-x250-P250-x630)
      €0.00  / *
    • HYA019H

      Interphase barrier x160 3/4P
      €0.00  / *
    • HYA036H

      Rail DIN raiser (x160-x250)
      €0.00  / *
    • HYA033H

      DIN Rail adaptator x160 3P/4P
      €0.00  / *

    Technical characteristics

    Elec­tric current
    • Rated current IN
      125 A
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 400 V AC IEC 60947-2
      18 kA
    • Rated ulti­mate short-­cir­cuit breaking capa­city Icu under 240 V AC IEC 60947-2
      25 kA
    • Rated service breaking capa­city Ics under 230 V AC according to IEC 60947-2
      25 kA
    • Rated service breaking capa­city Ics under 400 V AC according to IEC 60947-2
      18 kA
    Archi­tec­ture
    • Number of poles
      4
    Frequency
    • Frequency
      50 - 60 Hz
    Voltage
    • Rated impulse with­stand voltage Uimp
      8000 V
    • Rated insu­la­tion voltage Ui
      690 V
    • Rated oper­a­tional voltage Ue
      220 - 415 V
    Func­tions
    • Trip unit
      TM A/F
    Power
    • Power dissip­a­tion at IN
      33 W
    Endur­ance
    • Elec­tric endur­ance in number of cycles
      10000
    • Number of mech­an­ical oper­a­tions
      20000
    Safety
    • Ingress Protec­tion (IP) class
      IP4X
    Connec­tion
    • Cross-sec­tion flex­ible conductor
      4 - 70 mm²
    • Cross-sec­tion rigid conductor
      4 - 95 mm²
    Install­a­tion, mounting
    • Mount­ing-/­Con­nec­tion Posi­tion
      Front
    Connectivity
    • Type of connec­tion
      Screw terminal
    Settings
    • Thermal protec­tion knob setting xIN
      0.63, 0.8, 1
    Dimen­sions
    • Height
      130 mm
    • Width
      100 mm
    • Depth
      68 mm

    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

    RoHS conform Yes
    REACh-SVHC free Yes

    catalog.pageproduct.sustainability_block.downloads_h3

    PEP - MCCB h3+ P250 TM 4x250A 40kA (English)
    PDF
    1,78 MB
    REACH declaration HDA126U
    PDF
    RoHS report HDA126U
    PDF

    Downloads

    • Image HDA126U | Hager UK

      Product Image HDA126U

    • GeneratedProductDatasheet

      Image Hager Product data sheet HDA126U | Hager UK

      Hager Product data sheet HDA126U

      Moulded Case Circuit Breaker h3 x160 TM ADJ 4P4D N0-100% 125A 18kA CTC

      PDF

    • ProductInstallationManual

      Image Installation manual International 2021-06-07 | Hager UK

      Installation manual International 2021-06-07

      PDF
      8,51 MB

    • ProductECDeclaration

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

      Declaration of conformity en-US 2026-07-14

      PDF
      346,59 kB
      Image UKCA Declaration of Conformity | Hager UK

      UKCA Declaration of Conformity

      Declaration of conformity en-GB 2025-03-20

      PDF
      435,49 kB
    More documentation

    Discover our other products of this range

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      HMW630NR - MCCB h3+ P630 ENERGY 4P 630A Icu 50kA Fixed Toggle IP4X
      HMW630NR
      Moulded Case Circuit Breaker h3+ P630 Energy 3P3D 630A 50kA FTC
    • 2
      HMW400NR - Moulded Case Circuit Breaker h3+ Energy 3P 250A 50kA fixed
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      Moulded Case Circuit Breaker h3+ P630 Energy 3P3D 400A 50kA FTC
    • 3
      HMW250NR - MCCB h3+ P250 Energy 3P3D 250A 50kA Icu Fixed Toggle
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    • 4
      HMT251NR - Moulded Case Circuit Breaker h3+ P630 Energy 4P4D 250A 50kA Icu
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    • 5
      HMT250NR - MCCB 3P 160A Icu 50kA TM adjustable h3+ P250
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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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