Schneider A9F74404 Acti9 iC60N MCB 4P 4 A C Curve 10kA

The Schneider Electric A9F74404 is a 4-pole miniature circuit breaker (MCB) from the Acti 9 iC60N range, rated at 4 A with a C tripping curve. It provides thermomagnetic overcurrent protection for AC and DC distribution circuits, with a breaking capacity of 6000 A (Icn) at 400 V AC per EN/IEC 60898-1 and up to 50 kA (Icu) at 220-415 V AC per EN/IEC 60947-2.

Technical specifications:

• Commercial reference: A9F74404
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Acti 9 iC60
• Product type: Miniature circuit breaker (MCB)
• Number of poles: 4P
• Number of protected poles: 4
• Rated current (In): 4 A
• Tripping curve: C
• Protection technology: Thermomagnetic
• Network type: AC / DC
• Breaking capacity (Icn): 6000 A at 400 V AC 50/60 Hz (EN/IEC 60898-1)
• Breaking capacity (Icu): 50 kA at 220-415 V AC 50/60 Hz (EN/IEC 60947-2)
• Breaking capacity (Icu): 10 kA at 250 V DC (EN/IEC 60947-2)
• Service breaking capacity (Ics): 50 kA 100% at 380-415 V AC (EN/IEC 60947-2)
• Limitation class: 3 (EN/IEC 60898-1)
• Rated insulation voltage (Ui): 500 V AC 50/60 Hz (EN/IEC 60947-2)
• Rated impulse withstand voltage (Uimp): 6 kV (EN/IEC 60947-2)
• Overcurrent protection limit: 8 x In +/- 20%
• Network frequency: 50/60 Hz
• Mounting: DIN rail
• Width: 72 mm
• Height: 85 mm
• Depth: 78.5 mm
• Weight: 0.5 kg
• IP 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), 1-25 mm² rigid / 1-16 mm² flexible
• Tightening torque: 2 N.m
• Mechanical durability: 20000 cycles
• Electrical durability: 10000 cycles
• Busbar comb compatibility: Top or bottom
• Standards: EN/IEC 60947-2, EN/IEC 60898-1
• Quality mark: NF
• Warranty: 18 months

Features and benefits:

• High breaking capacity of up to 50 kA (Icu) makes it suitable for demanding industrial and commercial distribution applications.
• Suitable for both AC and DC networks, offering flexibility across a wide range of installations.
• C tripping curve provides reliable protection for circuits with moderate inrush currents such as lighting and distribution loads.
• Trip indicator provides local signalling for quick fault identification without additional instruments.
• Compatible with comb busbars (top or bottom) for efficient panel assembly and wiring.
• Suitable for isolation per EN/IEC 60898-1 and EN/IEC 60947-2, enabling safe maintenance disconnection.

Applications:

• Final distribution boards in commercial and industrial buildings requiring 4-pole overcurrent protection.
• Protection of three-phase circuits with neutral in industrial panels and switchboards.
• Electrical energy distribution systems where high breaking capacity and AC/DC compatibility are required.
• Control panels and enclosures requiring DIN rail mounted protection devices with compact footprint.

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

Also known as: Schneider A9F74404, Schneider Electric A9F74404, Acti9 iC60N 4P 4A C curve MCB, Schneider 4-pole miniature circuit breaker 4A.