Schneider A9F74340 Acti9 iC60N MCB 3P 40 A C Curve 10kA

The Schneider Electric A9F74340 is a 3-pole 40 A miniature circuit breaker (MCB) from the Acti 9 iC60N series, with a C tripping curve and thermomagnetic protection unit. Rated for AC and DC networks, it offers a breaking capacity of 10 kA at 380-415 V AC per IEC/EN 60947-2.

Technical specifications:

• Commercial reference: A9F74340
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iC60
• Product type: Miniature circuit breaker (MCB), iC60N
• Number of poles: 3P, 3 protected poles
• Rated current [In]: 40 A
• Tripping curve: C
• Protection unit: Thermomagnetic
• Network type: AC and DC, 50/60 Hz
• Breaking capacity: 6000 A Icn at 400 V AC (EN/IEC 60898-1); 10 kA Icu at 380-415 V AC; 20 kA Icu at 220-240 V AC (EN/IEC 60947-2)
• Limitation class: 3 (EN/IEC 60898-1)
• Rated insulation voltage [Ui]: 500 V AC
• Mounting: DIN rail
• Connection terminals: 1-35 mm² rigid / 1-25 mm² flexible; tightening torque 3.5 N.m
• Dimensions (WxHxD): 54 x 85 x 78.5 mm
• Weight: 0.375 kg
• IP rating: IP20 (IEC/EN 60529)
• Operating temperature: -35 to 70°C
• Standards: EN/IEC 60898-1, EN/IEC 60947-2

Features and benefits:

• Thermomagnetic protection unit guards against both overload and short-circuit faults on AC and DC networks
• C tripping curve with overcurrent threshold at 8 x In (+/-20%) for circuits with moderate inrush currents
• Limitation class 3 minimises let-through energy during fault events
• Trip indicator and contact position indicator allow fast local fault diagnosis
• Comb busbar distribution block compatible (upper or lower) for straightforward panel assembly

Applications:

• Final distribution boards in commercial and industrial buildings
• Three-phase load protection in low-voltage switchboards and distribution panels
• Motor branch circuit protection in industrial control panels
• DC distribution systems requiring certified overcurrent protection

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

Also known as: Schneider A9F74340, Schneider Electric A9F74340, Acti9 iC60N 3P 40A MCB, Schneider 40A three-pole C-curve circuit breaker.