C120H 4P 63A…125A; Miniature Circuit Breaker

Acti 9 C120H Circuit Breaker, 4P, 80A, D Curve

Catalogue Number: A9N18523
C120H 4P 63A…125A; Miniature Circuit Breaker
RRP (Inc. GST)


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Range of product
Acti 9
Product name
Product or component type
miniature circuit-breaker
Device short name
Device application
Poles description
Number of protected poles
Neutral position
[In] rated current
80 A at 30 °C
Network type
Trip unit technology
Curve code
Breaking capacity code
Breaking capacity
  • 15000 A Icn at 230...400 V AC 50/60 Hz conforming to EN/IEC 60898-1
  • 10 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2
  • 15 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2
  • 30 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2
  • 15 kA Icu at <= 500 V DC conforming to EN/IEC 60947-2
    • Suitability for isolation
      yes conforming to IEC 60947-2
      Network frequency
      50/60 Hz
      [Ue] rated operational voltage
    • 380...415 V AC 50/60 Hz
    • <= 500 V DC
    • 220...240 V AC 50/60 Hz
    • 440 V AC 50/60 Hz
    • 230...400 V AC 50/60 Hz
      • Magnetic tripping limit
        10...14 x In
        [Ics] rated service breaking capacity
      • 7500 A 50 % conforming to EN/IEC 60898-1 - 230...400 V AC 50/60 Hz
      • 5 kA 50 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz
      • 15 kA 50 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz
      • 7.5 kA 50 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz
      • 15 kA 100 % conforming to EN/IEC 60947-2 - <= 500 V DC
        • Limitation class
          3 conforming to EN/IEC 60947-2
          [Ui] rated insulation voltage
          500 V AC 50/60 Hz conforming to EN/IEC 60947-2
          [Uimp] rated impulse withstand voltage
          6 kV conforming to EN/IEC 60947-2
          Contact position indicator
          Control type
          Local signalling
          ON/OFF indication
          Mounting mode
          Mounting support
          35 mm symmetrical DIN rail
          Comb busbar and distribution block compatibility
          Connection pitch
          9 mm pitches
          81 mm
          108 mm
          73 mm
          Net weight
          0.82 kg
          Mechanical durability
          20000 cycles
          Electrical durability
          5000 cycles conforming to IEC 60947-2
          Connections - terminals
        • tunnel type terminals1-50 mm² rigid
        • tunnel type terminals1.5-35 mm² flexible
          • Wire stripping length
            15 mm
            Tightening torque
            3.5-3.5 N.m
            Earth-leakage protection
            separate block
            Compatibility code
            Market segment
          • small commercial
          • residential
            • Standards
            • EN/IEC 60898-1
            • EN/IEC 60947-2
              • Product certifications
                IP degree of protection
                IP20 conforming to IEC 60529
                Pollution degree
                3 conforming to IEC 60947-2
                Overvoltage category
                2 conforming to IEC 60068-1
                Relative humidity
                95-95 % at 55-55 °C
                Operating altitude
                2000 m
                Ambient air temperature for operation
                -30-60 °C
                Ambient air temperature for storage
                -40-70 °C
                Sustainable offer status
                Green Premium product
                REACh Regulation
                Free of Substances of Very High Concern above the threshold
                REACh free of SVHC
                EU RoHS Directive
                Toxic heavy metal free
                Mercury free
                RoHS exemption information
                China RoHS Regulation
                 Pro-active China RoHS declaration (out of China RoHS legal scope)
                Environmental Disclosure
                The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
                18 months

                Frequently Asked Questions

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                Wanted to know if A9N18524 can be used as 3 pole breaker instead of 4 pole?

                Yes, customer can use the 3 pole and leave 4 pole open.

                What is the part number for a B curve 125A 3P breaker

                The part number is A9N18426

                If a 3 pole 63A ,D curve 10kA MCB is no longer available in the C120 frame - what can I use instead?

                Code = A9N18511  3 pole, 15kA, 63A, (27mm wide)   

                What is the part code for a 3 phase indicator pilot light?

                 The part code is A9E18327

                Are the A9N18359 and A9A26924 compatible?

                The ref A9N18359 is C120 MCB (Multi9 design in the white material).

                The ref A9A26924 is iOF auxiliary (Aciti9 design for iC60 MCB).

                I can confirm that the parts A9N18359 and A9A26924 are not compliant with each other


                What is the part code for a Fuse Carrier STI, 1 pole.?

                 The Multi9 part code is 15636
                The Acti9 part code is A9N15636

                What is the new code for the 18364?

                The new code is now A9N18364

                What is the alternative replacement for old merlin Gerin code 18073 ?

                Code =  A9E18073

                How many poles wide is the iC120 3 pole 80amp C/B - A9N18365?

                The A9N18365 is 3 pole wide but is 27mm per pole , thus meaning it will need a 4.5 pole wide enclosure 81mm
                For further information , visit link below:-
                User-added image

                What is the replacement for 18354, 4P pole , B curve, 100A, 10KA circuit breaker?

                We do not have a direct replacement for 18354. We have A9N18436 which is rated to 15KA.  A9N18436 is 4P pole , B curve, 100A, 15KA circuit breaker.
                For further information, please visit https://www.schneider-electric.com/en/product/A9N18436/c120h---circuit-breaker---4p---100a---b-curve/


                Is it okay to terminate aluminium cables to the Acti 9 MCB's?

                Aluminium is more corrosive than copper and it can cause high resistance to the current flow over the period of time, So it is highly recommend to use the 27060 aluminium connection terminal if you are using Aluminium cables. 

                What is the part number for the 80 amp 3 pole and neutral 30mA RCBO, 10kA?

                The RCBO is made up with the 4 pole iC120N circuit breaker, part number A9N18372 plus add the 4 pole Vigi unit A9N18578



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