Description

Schneider A9N18369 | Miniature circuit-breaker, Acti9 C120N, 3P, 125 A, C curve, 10000 A (IEC 60898-1), 10 kA (IEC 60947-2)

Technical Specifications A9N18369

  • Reference Code: A9N18369

  • Product Type: Miniature Circuit Breaker (MCB)

  • Series: Acti9 C120N

  • Number of Poles: 3P (Triple Pole)

  • Rated Current (In): 125 Amperes

  • Tripping Curve: Type C – suitable for moderate inrush currents such as those from motors and inductive loads

  • Breaking Capacity (IEC 60898-1): 10,000 A

  • Breaking Capacity (IEC 60947-2): 10 kA

  • Rated Operational Voltage: 400 V AC (3-phase)

  • Frequency: 50/60 Hz

  • Installation Type: DIN rail mounted

  • Insulation Voltage: Up to 500 V

  • Degree of Protection: IP20 (when installed inside a panel enclosure)

  • Standards: IEC 60898-1 and IEC 60947-2 certified

Key Features:

  1. High Protection Level
    Provides both thermal and magnetic tripping mechanisms to protect against overloads and short circuits.

  2. C Curve Sensitivity
    The C curve allows short-duration overcurrents without tripping, making it suitable for inductive loads with inrush currents.

  3. Three-Phase Compatibility
    With its 3-pole design, it is perfect for balanced three-phase electrical systems.

  4. Reliable and Durable
    Built for high performance and long service life in demanding environments.

  5. Standards Compliance
    Fully compliant with international safety and performance standards, ensuring safe and legal installation.

  6. Ease of Installation
    Compact DIN rail mounting for fast and efficient panel assembly.

  7. Clear Identification
    Markings and terminal labeling ensure proper identification and safer wiring.

Applications:

  • Industrial Power Distribution
    Used in factories, processing plants, and machinery setups to protect three-phase power circuits.

  • Commercial Buildings
    Ensures safe distribution in office complexes, malls, hotels, and large infrastructure projects.

  • Electrical Panels
    Suitable for use as a main or sub-circuit breaker in distribution boards.

  • Motor Control Panels
    Ideal for circuits feeding motors and inductive equipment that draw higher startup currents.

  • HVAC Systems and Elevators
    Protects equipment with varying load profiles and operational demands.

Additional information

brands

Schneider Electric

Specifications

Main
Range of product C120
Range Acti9
Product name C120
Product or component type Miniature circuit-breaker
Device short name C120N
Device application Distribution
Poles description 3P
Number of protected poles 3
[In] rated current 125 A at 30 °C
Network type AC
Trip unit technology Thermal-magnetic
Curve code C
Breaking capacity 10000 A Icn at 230...400 V AC 50/60 Hz conforming to EN/IEC 60898-1 6 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at <= 375 V DC conforming to EN/IEC 60947-2
Suitability for isolation Yes conforming to IEC 60947-2
Complementary
Network frequency 50/60 Hz
[Ue] rated operational voltage <= 375 V DC 380...415 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz 230...400 V AC 50/60 Hz
Magnetic tripping limit 5...10 x In
[Ics] rated service breaking capacity 7500 A 75 % conforming to EN/IEC 60898-1 - 230...400 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 10 kA 100 % conforming to EN/IEC 60947-2 - <= 375 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 Yes
control type Toggle
local signalling ON/OFF indication
Mounting mode Clip-on
mounting support 35 mm symmetrical DIN rail
Comb busbar and distribution block compatibility YES
9 mm pitches 9
height 81 mm
Width 81 mm
Depth 73 mm
Net weight 0.615 kg
Colour White
Mechanical durability 20000 cycles
Electrical durability 5000 cycles conforming to IEC 60947-2
Locking options description Handle sealable with cable diameter 0.7mm in OFF or ON position
Connections - terminals Tunnel type terminals1…50 mm² rigid Tunnel type terminals1.5…35 mm² flexible
Wire stripping length 15 mm
Tightening torque 3.5 N.m
earth-leakage protection Separate block
Environment
Standards EN/IEC 60947-2 EN/IEC 60898-1
product certifications EAC
IP degree of protection IP20 conforming to IEC 60529
Pollution degree 3 conforming to IEC 60947-2
Overvoltage category IV
Tropicalisation 2 conforming to IEC 60068-1
Relative humidity 95 % at 55 °C
Operating altitude 2000 m
ambient air temperature for operation -25…70 °C
Ambient air temperature for storage -40…85 °C
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 7.500 cm
Package 1 Width 8.000 cm
Package 1 Length 8.000 cm
Package 1 Weight 583.000 g
Unit Type of Package 2 BB1
Number of Units in Package 2 4
Package 2 Height 8.500 cm
Package 2 Width 9.500 cm
Package 2 Length 33.000 cm
Package 2 Weight 2.403 kg
Unit Type of Package 3 S03
Number of Units in Package 3 24
Package 3 Height 30.000 cm
Package 3 Width 30.000 cm
Package 3 Length 40.000 cm
Package 3 Weight 14.830 kg
Contractual warranty
Warranty 18 months

Main Document

Main Document

Data Sheet : Download

Main Document

Data Sheet : Download

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