IC60N Circuit Breaker 3P 16A Curve D

The Schneider Electric Acti9 iC60N A9F75316 circuit breaker is a modular automatic breaker with 3 protected poles, 16 A and D tripping curve, designed to protect three-phase electrical circuits against overloads and short circuits. It offers a rated breaking capacity of 6 kA according to IEC/EN 60898-1 and an ultimate breaking capacity of 10 kA at 380-415 V AC according to IEC/EN 60947-2, making it suitable for properly sized residential, tertiary and industrial electrical panels.

Its D curve is especially suited to circuits that may present high inrush currents during connection, such as motors, transformers, machinery and other inductive loads. It also incorporates Schneider Electric VisiTrip and VisiSafe technologies to make tripping identification and visual contact status checking easier.

Three-phase 16 A circuit breaker

The A9F75316 has 3 poles and 3 protected poles, allowing the three phases of a three-phase circuit to be protected and disconnected simultaneously.

Its rated current is 16 A and it uses thermomagnetic tripping technology that combines two protection functions:

• Thermal protection: acts against sustained overloads that can cause excessive heating of conductors and equipment.
• Magnetic protection: provides a fast response to high currents produced by a short circuit.

D curve for high starting currents

The Schneider Electric Acti9 iC60N A9F75316 incorporates a D tripping curve. Schneider Electric specifies for this curve a magnetic threshold of approximately 12 times the rated current, with a tolerance of ±20 %.

This feature makes it possible to withstand certain current peaks during startup without causing unwanted magnetic tripping, provided the circuit has been correctly designed.

The D curve may be especially suitable for:

• Electric motors.
• Transformers.
• Industrial machinery.
• Pumps.
• Air conditioning and HVAC equipment.
• Inductive loads.
• Equipment with high inrush currents.
• Auxiliary circuits with strong starting peaks.

Using a D curve requires checking that the available short-circuit current is sufficient to ensure the protection operates under the conditions required by the installation.

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

In accordance with IEC/EN 60898-1, the A9F75316 has a rated breaking capacity Icn of 6,000 A.

This characteristic determines the circuit breaker’s ability to safely interrupt a short-circuit current within the conditions defined by the standard.

Before installation, it must always be checked that the breaking capacity is equal to or greater than the expected short-circuit current at the point where the breaker will be installed.

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

When evaluated according to IEC/EN 60947-2, Schneider Electric specifies different breaking capacities depending on the operating voltage.

• 220-240 V AC: Icu of 20 kA.
• 380-415 V AC: Icu of 10 kA.
• 440 V AC: Icu of 6 kA.

In a typical 400 V three-phase network, the A9F75316 therefore offers an ultimate breaking capacity Icu of 10 kA according to IEC/EN 60947-2.

Limitation class 3

The circuit breaker has energy limitation class 3 in accordance with IEC/EN 60898-1.

This limitation helps reduce the energy passing through the circuit during a short circuit, lowering the thermal and electrodynamic stresses that can affect cables, busbars and downstream equipment.

VisiTrip technology

The VisiTrip system makes it easy to visually identify a device that has tripped due to an electrical fault.

This function is especially useful in panels with many circuits, as it helps the installer or maintenance technician quickly locate the affected line and reduce intervention time.

VisiSafe technology

VisiSafe technology provides a visual indication that allows you to check that the contacts are physically open.

This function provides an additional reference during maintenance operations and complements the suitability for industrial isolation according to IEC/EN 60947-2 declared by Schneider Electric.

Fast Closing for rapid contact closing

The Acti9 iC60 range incorporates Fast Closing technology. The mechanism closes the contacts independently of the speed at which the user operates the lever.

This solution reduces the influence of manual operation on electrical closing and helps limit contact wear over the device’s service life.

500 V insulation voltage

The main dielectric characteristics of the iC60N range include:

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

DIN rail mounting

The Schneider Electric A9F75316 is designed for clip-on installation on a 35 mm DIN rail.

It has a total width of 54 mm, equivalent to 3 standard 18 mm modules, making it easy to integrate into modular electrical panels alongside residual current devices, surge protection devices and other Acti9 devices.

Compatible with distribution combs

The iC60 range design allows the use of distribution comb systems compatible with both the top and bottom of the device.

This makes it easier to distribute power between several breakers and allows for neater, faster panel wiring when compatible Schneider Electric accessories are used.

Terminals for conductors up to 25 mm²

For ratings up to 25 A, Schneider Electric specifies the following connection capacities for the iC60N range:

• Rigid conductors: 1 to 25 mm².
• Flexible conductors or with ferrule: 1 to 16 mm².
• Stripping length: approximately 14 mm.
• Tightening torque: 2 Nm.

Connections must be made respecting the specified cross-sections and tightening torques to ensure reliable electrical contact.

Mechanical and electrical durability

The Schneider Electric Acti9 iC60N range is designed to provide a long service life:

• Mechanical durability: up to 20,000 cycles.
• Electrical durability: up to 10,000 cycles.

These features make it suitable for use in panels subject to normal operation, testing and maintenance switching.

IP20 protection

The circuit breaker has an IP20 protection rating as an individual device.

When correctly installed in a suitable modular enclosure, Schneider Electric indicates that the assembly can achieve a protection rating of IP40, depending on the panel characteristics.

Wide operating temperature range

The Acti9 iC60N is designed to operate in demanding environmental conditions:

• Operating temperature: -35 to 70 °C.
• Storage temperature: -40 to 85 °C.
• Tropical treatment: suitable for relative humidity up to 95 % at 55 °C under specified conditions.

Schneider Electric A9F75316 dimensions

• Height: 85 mm.
• Width: 54 mm.
• Depth: 78.5 mm.
• Number of modules: 3 modules of 18 mm.
• Approximate weight: 0.375 kg.
• Color: white.

Compatible with auxiliaries and Vigi residual current protection

The Acti9 iC60 family supports different accessories that expand the circuit breaker’s functions.

• Auxiliary contacts.
• Signaling contacts.
• Auxiliary trip releases.
• Remote monitoring solutions.
• Control accessories.
• Compatible Vigi residual current blocks.

This modularity makes it possible to create protection and control assemblies adapted to the needs of each installation.

Technical characteristics of the Schneider Electric A9F75316

• Brand: Schneider Electric.
• Reference: A9F75316.
• Range: Acti9.
• Model: iC60N.
• Type: modular thermomagnetic circuit breaker.
• Number of poles: 3P.
• Protected poles: 3.
• Rated current: 16 A.
• Tripping curve: D.
• Tripping technology: thermomagnetic.
• D curve magnetic threshold: 12 x In ±20 %.
• Breaking capacity Icn 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.
• Limitation class: 3.
• Insulation voltage Ui: 500 V AC.
• Impulse withstand voltage Uimp: 6 kV.
• Utilization category: A.
• Overvoltage category: IV.
• Pollution degree: 3.
• VisiTrip: yes.
• VisiSafe: yes.
• Fast Closing: yes.
• Suitable for industrial isolation: yes.
• Mounting: 35 mm DIN rail.
• Comb compatibility: top and bottom.
• Rigid conductors: 1-25 mm².
• Flexible conductors: 1-16 mm².
• Tightening torque: 2 Nm.
• Protection rating: IP20.
• Protection in modular enclosure: up to IP40.
• Mechanical durability: 20,000 cycles.
• Electrical durability: 10,000 cycles.
• Operating temperature: -35 to 70 °C.
• Storage temperature: -40 to 85 °C.
• Height: 85 mm.
• Width: 54 mm.
• Depth: 78.5 mm.
• Approximate weight: 0.375 kg.
• EAN: 3606480080845.
• Main standards: IEC/EN 60898-1 and IEC/EN 60947-2.

Protection for three-phase circuits with strong inrush currents

The Schneider Electric Acti9 iC60N A9F75316 combines three protected poles, a rated current of 16 A and a D curve to provide protection against overloads and short circuits in circuits where high starting currents may occur.

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, VisiSafe, limitation class 3 and compatibility with Acti9 accessories, allows it to be integrated into three-phase electrical panels with complete protection and signaling performance.

Important: the use of a D curve circuit breaker must be verified by installation calculations. It is necessary to check conductor cross-section and capacity, available short-circuit current, circuit impedance, load characteristics and coordination with the other protection devices.