Schneider A9N18459 | Miniature circuit breaker (MCB), Acti9 C120H, 2P, 125A, C curve, 15000A (IEC/EN 60898-1), 15kA (IEC/EN 60947-2)

 Schneider A9N18459 | Miniature circuit breaker (MCB), Acti9 C120H, 2P, 125A, C curve, 15000A (IEC/EN 60898-1), 15kA (IEC/EN 60947-2)

Technical Specifications A9N18459

• Reference: A9N18459

• Product Type: Miniature Circuit Breaker (MCB)

• Series: Acti9 C120H

• Number of Poles: 2P (Double Pole)

• Rated Current: 125 Amperes

• Tripping Curve: C Curve – ideal for circuits with moderate inrush currents

• Breaking Capacity (IEC/EN 60898-1): 15,000 A

• Breaking Capacity (IEC/EN 60947-2): 15 kA

• Rated Operational Voltage: 230/400 V AC

• Frequency: 50/60 Hz

• Insulation Voltage: Up to 500 V

• Mounting Type: DIN rail

• Degree of Protection: IP20 (in enclosed installations)

• Standards Compliance: IEC/EN 60898-1 and IEC/EN 60947-2

Key Features:

1. High Breaking Capacity (15 kA)
   Provides enhanced short-circuit protection for installations with high prospective fault currents.

2. Double Pole Protection
   Simultaneous disconnection of both live and neutral conductors, ensuring full circuit isolation and greater safety.

3. C Curve Tripping
   Ideal for loads with moderate starting surges such as lighting, small motors, and mixed equipment.

4. Thermal and Magnetic Protection
   Combines both overload and short-circuit protection for dependable circuit safeguarding.

5. Compact and Robust Design
   Engineered for space-saving installation while offering strong mechanical durability.

6. Fast Installation
   Compatible with standard DIN rails for quick and secure mounting in distribution boards.

7. Safety Markings and Indicators
   Clear status indicators and terminal labeling ensure correct installation and simplify maintenance.

Applications:

• Industrial Facilities
  Suitable for protecting motor circuits, equipment feeders, and distribution panels in manufacturing environments.

• Commercial Buildings
  Ensures safe power distribution in offices, shopping centers, and service facilities.

• Distribution Boards
  Can be used as a main or branch protection device in multi-phase systems.

• Large Residential Installations
  Ideal for high-load residential circuits such as centralized HVAC systems or electric heating panels.

• Power Control Panels
  Applied in control systems where higher fault current ratings and isolation are required.