Circuit breaker C120N-C100-3 C 100A 3-pole A9N18367

Overcurrent protection device – reliable protection for electrical installations

This three-pole overcurrent protection device from the Acti9 series by Schneider Electric is a key safety element in every electrical installation. Designed to protect against the effects of overloads and short circuits, it ensures safe operation and long-term reliability. A rated current of 100A makes it ideal for protecting circuits with higher power consumption, and the C characteristic guarantees an appropriate response to sudden current surges, typical of devices with motors or other inductive loads.

Construction and application

This circuit breaker, with a width of 4.5 modules, finds application in both home and industrial installations. Its compact dimensions (installation depth 44 mm) allow for easy mounting in electrical distribution boards. The rated insulation voltage Ui of 500V and high impulse voltage resistance (6kV) ensure safety even in difficult working conditions. The circuit breaker is designed to operate in AC networks with a voltage of 400V and a frequency of 50-60Hz. Energy limitation class 3 and surge category 4 confirm its high effectiveness in protecting against interference.

Key features and benefits

• High breaking capacity: The rated short-circuit breaking capacity (Icn) is as high as 10kA at 400V and 230V, and also 20kA (Icu) at 230V, which guarantees effective disconnection of the circuit in the event of a failure. This translates to minimizing equipment damage and increasing user safety.
• C characteristic: Allows for temporary overloads without unnecessary tripping, which is particularly important for devices with motors or other inductive loads – typical for workshops or households with a lot of appliances.
• Versatility: The possibility of adding accessories allows you to adapt the circuit breaker to the specific needs of the installation, e.g. by adding auxiliary contacts or status indicators.
• Solid construction: The IP20 degree of protection provides protection against accidental contact and against the ingress of solid objects larger than 12.5 mm.
• Wide connection range: Accepts solid conductors with a cross-section from 1.5 to 50 mm² and stranded conductors from 1 to 35 mm², which facilitates installation and connection to the existing installation.
• Operation in a wide temperature range: The circuit breaker retains its operating properties at ambient temperatures from -25°C to +70°C, making it suitable for both indoor and outdoor applications (with appropriate housing).