A9N18365, Schneider Electric Acti 9 C120N MCB, 3P, 80A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity

Acti9 C120N MCBs

Acti9 C120N curve B, C, D circuit breakers are multi-standard circuit breakers which combine circuit protection against short-circuit currents and circuit protection against overload currents

The presence of the green strip ensures that the contacts are open physically and allows work to be carried out safely on the downstream circuit

• Fault tripping and indication by adding auxiliaries


• Suitability for isolation in the industrial sector to IEC/EN 60947-2


• Insulated terminals IP20


• Location for 4 clip-on terminal markers

Schneider Electric Acti 9 80 Mini Circuit Breaker, 3P Curve Type C

Experience unmatched efficiency, safety, and ease-of-use with Schneider Electric’s advanced Acti 9 range of MCB’s. The Acti 9 MCBs will simplify your power distribution operations to provide you with the perfect solution for each application.

The Acti 9 80 MCB, 3P Curve Type C combines guaranteed protection against short-circuit currents, and consistent circuit protection against overload currents.

This Type C MCB is ideal for use in commercial and industrial installations as it will trip instantly at a rate of five to ten times its rated current, making it suitable for high inductive loads where switching surges are high.

This adaptable, low-voltage segmental system provides excellent performance in the harshest environments, diminishes design and installation time and ensures zero downtime. Supported by their rigorous testing process, Schneider Electric has delivered this exceptionally high quality MCB range to fulfil your circuit breaker requirements.

Benefits and Features

The VisiSafe feature offers reliable and safe intervention, as the presence of the green strip ensures that the contacts are open physically and allows work to be carried out securely on the downstream circuit. The Class 2 Front face maintains zero risk of electrical shock, while the fast closing mechanism reduces weathering and offers greater longevity. The VisiTrip feature allows rapid identification of blown circuits.

• Fault tripping and indication by adding auxiliaries
• Suitability for isolation in the industrial sector to IEC/EN 60947-2
• Insulated terminals IP20
• Location for 4 clip-on terminal markers
• 3 Poles, 3 Protected Poles
• Network Frequency: 50/60 Hz
• Comb busbar and distribution block compatibility
• Breaking Capacity: 10 kA, 20 kA
• Level 3 pollution resistance
• 100% coordination between MCB and actuator
• High quality fit and finish
• Fast, easy installation
• 100% recyclable and recoverable materials
• RoHS compliant and REACH standard compliant

What does a miniature circuit breaker do?

An MCB is a switch that automatically interrupts electrical circuits to protect wires from short circuits and overloads. They are resettable usually by a switch or button and are more reliable and sensitive than fuses.

When the electrical current within a wire exceeds its maximum capacity this heats up the bimetallic strip within the miniature circuit breaker. This causes the switch to trip, stopping the flow of the current within the circuit and preventing catastrophic damage.

What are the differences in the Tripping Curves B, C, and D?

Curve B: Tripping: 3 to 5 times the rated current.
Applications: protection of generators, persons, very long cables
Curve C: Tripping: 5 to 10 times the rated current
Applications: protection of circuits and general applications
Curve D: Tripping: 10 to 14 times the rated current
Applications: protection of high surge circuits, welders, transformers and motors

Schneider Electric Miniature Circuit Breaker - A9N18365.

• Forms part of the Acti 9 range of products


• Predominantly known as C120N


• 3 Poles, 3 protected poles


• AC network with thermal-magnetic trip unit technology


• D curve mode


• The utilisation category of the A9N18365 miniature circuit breaker is Category A conforming to EN/IEC 60947-2.


• 50/60 Hz network frequency


• Magnetic tripping limit – 5 to 10 x In +/- 20 %

Acti 9 Brochure

A9N18365 Datasheet

Green Premium Ecolabel

Catalogue Acti9

Green Premium - Product Environmental Profile

Product Environmental Profile