IC60N 4P 6A Curve C Circuit Breaker

The Schneider Electric Acti9 iC60N A9F79406 miniature circuit breaker is a four-pole automatic circuit breaker with 6 A rating and C curve, designed to protect electrical circuits against overloads and short circuits. It features 4 poles with all 4 poles protected, a thermal-magnetic trip unit, and can be used in AC and DC networks within the conditions specified by Schneider Electric.

Reference A9F79406 offers a rated breaking capacity Icn of 6 kA at 400 V AC according to IEC/EN 60898-1 and an ultimate breaking capacity Icu of 10 kA at 380-415 V AC according to IEC/EN 60947-2. It also incorporates VisiTrip and VisiSafe technologies, designed to make trip identification easier and improve contact status verification during maintenance operations.

Four-pole 6 A miniature circuit breaker

The Schneider Electric A9F79406 has a 4P configuration, with thermal and magnetic protection on all four poles. Its 6 A rated current makes it suitable for properly sized circuits requiring low-current four-pole protection.

• Number of poles: 4P.
• Protected poles: 4.
• Rated current: 6 A.
• Trip curve: C.
• Trip technology: thermal-magnetic.
• Network type: AC and DC.
• Frequency: 50/60 Hz.
• Rated voltage: 400 V AC.

Protection against overloads and short circuits

The Acti9 iC60N combines two protection systems. The thermal trip unit acts against sustained overloads that could cause excessive heating of the conductors, while the magnetic trip unit disconnects the circuit quickly when a high short-circuit current occurs.

This integrated protection allows the A9F79406 to be used as a protection device for lines and loads in residential, commercial, and industrial distribution boards.

C curve with magnetic threshold of 8 x In

The A9F79406 uses a C trip curve. Schneider Electric specifies for this device a magnetic operating threshold of 8 times the rated current with a tolerance of ±20%.

The C curve is widely used in distribution circuits with loads that may present moderate inrush currents, provided that the circuit sizing and load characteristics are compatible.

6 kA breaking capacity according to IEC/EN 60898-1

According to IEC/EN 60898-1, Schneider Electric specifies for the A9F79406 a rated breaking capacity Icn of 6,000 A at 400 V AC.

This value must be distinguished from the values declared according to IEC/EN 60947-2, since both standards use different criteria and designations to express the circuit breaker breaking capacity.

10 kA at 380-415 V according to IEC/EN 60947-2

According to IEC/EN 60947-2, the ultimate breaking capacity Icu varies depending on the operating voltage:

• 12-60 V AC: 36 kA.
• 100-133 V AC: 36 kA.
• 220-240 V AC: 20 kA.
• 380-415 V AC: 10 kA.
• 440 V AC: 6 kA.
• Up to 250 V DC: 10 kA.

Therefore, at a typical 400 V AC voltage the circuit breaker offers 6 kA according to IEC/EN 60898-1 and 10 kA according to IEC/EN 60947-2. It is recommended to always state the standard associated with the breaking capacity value to avoid incorrect comparisons.

Service breaking capacity Ics

The service breaking capacity Ics indicated for the Acti9 iC60N reaches the following values according to IEC/EN 60947-2:

• 220-240 V AC: 15 kA.
• 380-415 V AC: 7.5 kA.
• 440 V AC: 4.5 kA.
• 180-250 V DC: 10 kA.

According to IEC/EN 60898-1, the service breaking capacity reaches 6 kA at 400 V AC.

VisiTrip for quick trip identification

The VisiTrip system includes a front mechanical indicator that helps quickly locate the circuit breaker that has tripped due to an electrical fault.

This function is especially useful in panels with numerous protective devices, as it simplifies diagnostic work and reduces the time needed to locate the affected circuit.

VisiSafe and suitability for isolation

The VisiSafe technology uses a green indication associated with the contact position to make it easier to verify that the breaker is open.

The Schneider Electric A9F79406 is also suitable for isolation according to IEC/EN 60898-1 and IEC/EN 60947-2, within the conditions specified by the manufacturer.

Insulation and surge withstand

The circuit breaker offers insulation characteristics suitable for professional electrical panels:

• Rated insulation voltage Ui: 500 V AC.
• Impulse withstand voltage Uimp: 6 kV.
• Overvoltage category: IV.
• Pollution degree: 3.
• Utilization category: A according to IEC/EN 60947-2.
• Energy limiting class: 3.

Compatible with auxiliaries and Vigi residual current blocks

The Acti9 iC60N A9F79406 supports the addition of electrical auxiliaries, signaling devices and remote monitoring devices, and compatible Vigi residual current blocks, allowing the functions of the electrical panel to be expanded.

Residual current protection is not integrated into this miniature circuit breaker. When protection against residual currents is required, a compatible and correctly selected residual current device must be added.

Modular DIN rail mounting

The Schneider Electric A9F79406 is designed for fixed mounting on DIN rail. Its four-pole configuration occupies 8 modules of 9 mm, equivalent to a total width of 72 mm.

• Height: 85 mm.
• Width: 72 mm.
• Depth: 78.5 mm.
• Installation depth: 44.5 mm.
• Modular width: 8 modules of 9 mm.
• Weight: approximately 0.5 kg.
• Color: white.

Top or bottom connection

The tunnel-type terminals allow supply connection from the top or bottom of the device, making wiring organization inside the panel easier.

• Rigid conductor: 1 to 25 mm².
• Flexible conductor: 1 to 16 mm².
• Strip length: 14 mm.
• Tightening torque: 2 Nm.

High mechanical and electrical durability

The Acti9 iC60N range is designed to withstand a high number of operations throughout its service life.

• Mechanical durability: 20,000 cycles.
• Electrical durability: 10,000 cycles.
• Power loss: approximately 1.3 W according to the commercial technical sheet.

IP20 protection

The A9F79406 has an IP20 protection rating at its terminals and is designed to be installed inside a suitable enclosure or electrical panel.

• Protection rating: IP20.
• Operating temperature: -35 to 70 °C.
• Storage temperature: -40 to 85 °C.
• Relative humidity: up to 95% at 55 °C.
• Maximum operating altitude: 2,000 m.

IEC/EN 60898-1 and IEC/EN 60947-2 standards

The Schneider Electric Acti9 iC60N A9F79406 miniature circuit breaker is developed in accordance with IEC/EN 60898-1 and IEC/EN 60947-2, which establish the operating, safety, and breaking capacity requirements for low-voltage circuit breakers.

Schneider Electric A9F79406 technical specifications

• Brand: Schneider Electric.
• Range: Acti9.
• Series: Acti9 iC60.
• Model: iC60N.
• Reference: A9F79406.
• Type: thermal-magnetic circuit breaker.
• Application: electrical distribution.
• Number of poles: 4P.
• Number of protected poles: 4.
• Rated current: 6 A.
• Curve: C.
• Trip unit: thermal-magnetic.
• Magnetic threshold: 8 x In ±20%.
• Network type: AC/DC.
• Frequency: 50/60 Hz.
• Rated voltage: 400 V AC.
• Icn at 400 V AC according to IEC/EN 60898-1: 6 kA.
• Icu at 220-240 V AC according to IEC/EN 60947-2: 20 kA.
• Icu at 380-415 V AC according to IEC/EN 60947-2: 10 kA.
• Icu at 440 V AC according to IEC/EN 60947-2: 6 kA.
• Icu up to 250 V DC: 10 kA.
• Limiting class: 3.
• Insulation voltage Ui: 500 V.
• Impulse withstand voltage Uimp: 6 kV.
• Overvoltage category: IV.
• VisiTrip: yes.
• VisiSafe: yes.
• Contact position indicator: yes.
• Trip indicator: yes.
• Suitable for isolation: yes.
• Residual current protection: via compatible independent block.
• Mounting: DIN rail.
• Width: 72 mm.
• Height: 85 mm.
• Depth: 78.5 mm.
• Installation depth: 44.5 mm.
• Weight: approximately 0.5 kg.
• Rigid conductor: 1-25 mm².
• Flexible conductor: 1-16 mm².
• Strip length: 14 mm.
• Tightening torque: 2 Nm.
• Mechanical durability: 20,000 cycles.
• Electrical durability: 10,000 cycles.
• Protection rating: IP20.
• Operating temperature: -35 to 70 °C.
• Standards: IEC/EN 60898-1 and IEC/EN 60947-2.

The Schneider Electric Acti9 iC60N A9F79406 four-pole, 6 A, C-curve miniature circuit breaker offers a professional solution for protecting electrical circuits against overloads and short circuits. Its breaking capacity of 6 kA according to IEC/EN 60898-1 and 10 kA at 380-415 V according to IEC/EN 60947-2, together with VisiTrip and VisiSafe technologies, DIN rail mounting, and compatibility with auxiliaries and Vigi blocks, makes it easy to integrate into low-voltage distribution boards.