Circuit breaker C120N-C125-1 125A 1-pole A9N18359

Solid electrical installation protection – Schneider Electric C120N circuit breaker

This single-pole circuit breaker from Schneider Electric's Acti9 C120N series is a reliable solution for protecting electrical circuits. Designed to work with AC installations, it provides effective protection against overloads and short circuits, minimizing the risk of damage and fire. The C characteristic makes it ideal for circuits with devices generating inrush currents, such as motors or transformers – it reacts more slowly to short current surges, therefore tolerating the starting of such devices well.

This circuit breaker is characterized by a rated current of 125A and a short-circuit breaking capacity of up to 10kA at 230V and 3kA at 400V (according to EN 60898 and IEC 60947-2 standards). Mounting is done on a standard DIN rail, which facilitates integration with existing distribution boards. Compact dimensions (1.5 module width) allow for efficient use of space in the distribution cabinet.

Application and benefits for the installer:

• Versatility: Suitable for use in residential, commercial and industrial buildings.
• Easy installation: Quick and easy mounting on a DIN rail saves time during installation.
• Compliance with standards: Meets the requirements of EN 60898-1 and EN 60947-2 standards, guaranteeing safety and reliability.
• High quality workmanship: Ensures long-lasting and trouble-free operation.
• Expandability: Compatible with additional accessories from the Acti9 series, allowing customization to specific installation needs.

User and design parameters:

The circuit breaker has been designed with durability and reliability in mind. The housing made of high-quality materials provides protection against external factors (IP20 protection class). The cross-section of solid core wires accepted by the circuit breaker is from 1.5 to 50 mm², and stranded wires from 1 to 35 mm², which provides great flexibility when selecting wires. The ambient temperature in operating conditions is from -25°C to 70°C, which allows it to be used in various environmental conditions. The rated impulse withstand voltage Uimp is as high as 6kV, which further increases safety. In addition, thanks to the C characteristic, the circuit breaker minimizes the risk of unnecessary tripping during short-term overloads, which is particularly important for devices with high starting current.