Schneider A9F84340 Miniature Circuit Breaker (MCB), Acti9 iC60H 3P C40A 10kA

The Schneider Electric A9F84340 is a 3-pole miniature circuit breaker (MCB) from the Acti 9 iC60H range, rated at 40 A with a C tripping characteristic. Designed for electrical power distribution, it delivers a breaking capacity of 10 kA at 400 V AC (IEC/EN 60898-1) and up to 42 kA Icu at 12-133 V AC (IEC/EN 60947-2), making it suitable for demanding industrial and commercial installations.

Technical specifications:

• Commercial reference: A9F84340
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iC60
• Number of poles: 3P
• Number of protected poles: 3
• Rated current: 40 A
• Tripping characteristic: C
• Network type: AC / DC
• Protection unit technology: Thermomagnetic
• Breaking capacity: 10 kA Icn at 400 V AC 50/60 Hz (EN/IEC 60898-1); 42 kA Icu at 12-133 V AC; 30 kA Icu at 220-240 V AC; 15 kA Icu at 380-415 V AC; 10 kA Icu at 440 V AC; 15 kA Icu at <= 180 V DC (EN/IEC 60947-2)
• Limitation class: 3 (EN/IEC 60898-1)
• Rated insulation voltage: 500 V AC 50/60 Hz (EN/IEC 60947-2)
• Rated impulse withstand voltage: 6 kV (EN/IEC 60947-2)
• Overcurrent protection limit: 8 x In +/- 20%
• Use category: Category A (EN/IEC 60947-2)
• Mounting: DIN rail
• Width: 54 mm
• Height: 85 mm
• Depth: 78.5 mm
• Weight: 0.375 kg
• IP protection rating: IP20 (IEC/EN 60529)
• Operating temperature: -35 to 70 °C
• Storage temperature: -40 to 85 °C
• Relative humidity: 95% at 55 °C
• Pollution degree: 3 (EN/IEC 60947-2)
• Overvoltage category: IV
• Connection: single terminal block (top or bottom), 1-35 mm² rigid / 1-25 mm² flexible; strip length 14 mm; tightening torque 3.5 N.m
• Mechanical endurance: 20,000 cycles
• Electrical endurance: 10,000 cycles
• Standards: IEC 60947-2, IEC 60898-1, EN 60947-2, EN 60898-1

Features and benefits:

• Suitable for isolation per EN/IEC 60898-1 and EN/IEC 60947-2
• Compatible with comb busbar distribution blocks (top or bottom connection)
• Contact position indicator and trip indicator for quick visual diagnostics
• Operates on both AC and DC networks, providing installation flexibility
• Limitation class 3 for effective energy limitation and downstream protection
• Tropicalization grade 2 (IEC 60068-1) for use in humid environments

Applications:

• Final distribution boards in commercial and industrial buildings
• Protection of outgoing circuits in low-voltage switchgear and control panels
• DC network protection in photovoltaic and battery storage installations
• Motor circuit protection in industrial automation panels

Compliant with IEC 60947-2, IEC 60898-1, EN 60947-2, and EN 60898-1. Part of the Schneider Electric Acti 9 iC60 range.

Also known as: Schneider A9F84340, Schneider Electric A9F84340, iC60H 3P C40A MCB, Acti9 40A 3-pole circuit breaker.