Schneider A9F74140 Acti9 iC60N MCB 1P 40 A C Curve 10kA

The Schneider Electric A9F74140 is a 1-pole, 40 A miniature circuit breaker (MCB) from the Acti 9 iC60N series, designed for electrical distribution on AC and DC networks. Its thermomagnetic C tripping curve and ultimate breaking capacity (Icu) of 10 kA at 220-240 V AC per IEC 60947-2 make it a reliable solution for general-purpose circuit protection in residential and commercial installations.

Technical specifications:

• Commercial reference: A9F74140
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iC60
• Number of poles: 1P; rated current: 40 A; tripping curve: C
• Network type: AC / DC; protection technology: thermomagnetic
• Breaking capacity (Icn): 6,000 A at 230 V AC 50/60 Hz (EN/IEC 60898-1)
• Breaking capacity (Icu): 10 kA at 220-240 V AC 50/60 Hz; 10 kA at 72 V DC (EN/IEC 60947-2)
• Service breaking capacity (Ics): 7.5 kA at 220-240 V AC 50/60 Hz (EN/IEC 60947-2)
• Limitation class: 3 (EN/IEC 60898-1); use category: A (EN/IEC 60947-2)
• Rated insulation voltage (Ui): 500 V AC 50/60 Hz; impulse withstand voltage (Uimp): 6 kV
• Mounting: DIN rail, fixed; dimensions (WxHxD): 18 x 85 x 78.5 mm
• Weight: 0.215 kg; color: white; IP rating: IP20 (IEC/EN 60529)
• Operating temperature: -35...70°C; storage temperature: -40...85°C
• Connection: 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
• Overvoltage category: IV; pollution degree: 3; tropicalization: 2 (IEC 60068-1)

Features and benefits:

• C curve thermomagnetic protection suited to loads with moderate inrush currents
• Dual AC and DC network compatibility in a single device
• Limitation class 3 minimizes let-through energy, protecting downstream equipment
• Integrated trip indicator enables fast local fault identification
• Upper or lower comb busbar block compatibility for flexible panel wiring

Applications:

• Final distribution boards in residential and commercial buildings
• Industrial control panels and switchgear assemblies
• DC distribution systems up to 72 V
• Circuits requiring overvoltage category IV 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 A9F74140, Schneider Electric A9F74140, iC60N 40A C curve MCB, Acti9 1-pole 40 amp circuit breaker.