Schneider A9N18357 Miniature Circuit Breaker (MCB), Acti9 C120N, 1P C80A 10 kA

Schneider Electric A9N18357 is a 1-pole miniature circuit breaker (MCB) from the Acti 9 C120N range, rated at 80 A with a C tripping characteristic. It provides thermomagnetic protection for AC distribution systems with a breaking capacity of 10 kA at 230-400 V AC, making it suitable for high-demand electrical distribution applications.

Technical specifications:

• Commercial reference: A9N18357
• Manufacturer: Schneider Electric
• Series / range: Acti 9 C120
• Product type: Miniature Circuit Breaker (MCB)
• Number of poles: 1P
• Number of protected poles: 1
• Rated current [In]: 80 A at 30°C
• Tripping curve: C
• Network type: AC
• Protection unit technology: Thermomagnetic
• Rated voltage [Ue]: 220-240 V AC / 380-415 V AC 50/60 Hz; 125 V DC / up to 144 V DC
• Breaking capacity [Icu]: 10 kA at 220-240 V AC; 3 kA at 380-415 V AC (IT network); 10 kA Icn at 230-400 V AC per EN/IEC 60898-1
• Rated insulation voltage [Ui]: 500 V AC 50/60 Hz
• Rated impulse withstand voltage [Uimp]: 6 kV
• Overcurrent protection range: 5-10 x In
• Mounting: 35 mm symmetrical DIN rail, clip-on
• Connection type: Tunnel terminals, 1-50 mm² solid / 1.5-35 mm² flexible
• Tightening torque: 3.5 N.m
• Strip length: 15 mm
• Dimensions (WxHxD): 27 x 81 x 73 mm
• Weight: 0.205 kg
• IP rating: IP20 per IEC 60529
• Operating temperature: -25 to 70°C
• Storage temperature: -40 to 85°C
• Operating altitude: up to 2000 m
• Standards: EN/IEC 60898-1, EN/IEC 60947-2
• Certification: EAC
• Warranty: 18 months

Features and benefits:

• Thermomagnetic protection for reliable overload and short-circuit tripping
• C curve characteristic suitable for loads with moderate inrush currents
• Compatible with comb busbar distribution blocks for efficient panel wiring
• Handle sealable with 0.7 mm cable diameter in ON or OFF position for tamper protection
• Suitable for isolation per IEC 60947-2, enabling safe maintenance procedures
• Mechanical endurance of 20,000 cycles; electrical endurance of 5,000 cycles

Applications:

• Final distribution boards in commercial and industrial electrical installations
• Protection of distribution circuits in industrial control panels
• AC and DC distribution systems requiring high breaking capacity
• Installations requiring circuit isolation capability per IEC 60947-2

Compliant with EN/IEC 60898-1 and EN/IEC 60947-2. Part of the Schneider Electric Acti 9 C120 range.

Also known as: Schneider A9N18357, Schneider Electric A9N18357, Acti9 C120N 1P 80A MCB, Schneider 80A miniature circuit breaker.