Schneider A9F74304 Acti9 iC60N MCB 3P 4 A C Curve 10kA

The Schneider Electric A9F74304 is a 3-pole 4 A miniature circuit breaker (MCB) from the Acti 9 iC60N series, fitted with a C tripping curve and thermomagnetic protection. It operates on both AC and DC networks with a breaking capacity of 50 kA Icu at 380-415 V AC per IEC/EN 60947-2, making it a high-performance choice for demanding distribution applications.

Technical specifications:

• Commercial reference: A9F74304
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iC60
• Product type: Miniature circuit breaker (MCB)
• Number of poles: 3P
• Rated current [In]: 4 A
• Tripping curve: C
• Network type: AC / DC
• Protection unit technology: Thermomagnetic
• Breaking capacity: 6,000 A Icn at 400 V AC (IEC/EN 60898-1); 50 kA Icu at 380-415 V AC (IEC/EN 60947-2)
• Service breaking capacity [Ics]: 50 kA (100%) at 380-415 V AC per IEC/EN 60947-2
• Limitation class: 3 per IEC/EN 60898-1
• Overvoltage category: IV
• IP protection rating: IP20 per IEC/EN 60529
• Pollution degree: 3
• Operating temperature: -35 to 70°C
• Mounting: DIN rail, fixed
• Comb busbar compatible: Yes (upper or lower)
• Dimensions (W x H x D): 54 x 85 x 78.5 mm
• Weight: 0.375 kg
• Connection: Single terminal block, 1-25 mm² rigid / 1-16 mm² flexible
• Mechanical durability: 20,000 cycles
• Electrical durability: 10,000 cycles

Features and benefits:

• Thermomagnetic protection suitable for both AC and DC distribution systems
• Breaking capacity of 50 kA Icu at 380-415 V AC for robust short-circuit protection in high-demand installations
• Limitation class 3 minimises peak let-through current, protecting downstream equipment
• Contact position indicator and trip indicator enable fast visual status checks
• Compatible with comb busbar distribution blocks for flexible, space-efficient panel wiring

Applications:

• Final distribution boards in residential and commercial buildings
• Industrial switchgear assemblies and control panels
• DC and mixed AC/DC power distribution systems
• Cable and circuit protection where high breaking capacity is required

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

Also known as: Schneider A9F74304, Schneider Electric A9F74304, iC60N 3-pole MCB 4A, Acti9 miniature circuit breaker C curve.