DC overcurrent circuit breaker 1-pole FAZ-C25/1-DC 279130

DC Circuit Breaker – Reliable Installation Protection

This single-pole DC circuit breaker from Eaton, model FAZ-C25/1-DC (cat. no. 279130), is a key protective element in direct current (DC) installations. The device is designed to protect against the effects of overloads and short circuits, ensuring safety for both users and the installation. Its compact size and TH35 rail mounting make it an ideal solution for both new and modernized systems.

Characteristics and application

The FAZ-C25/1-DC circuit breaker is characterized by a C tripping characteristic, which means it reacts with a slight delay to short-term current surges. This makes it perfect for circuits with devices with high inrush current, such as motors or transformers. Immunity to reverse polarity increases its versatility and safety. The rated short-circuit breaking capacity of 10kA (at 250V and 400V DC) guarantees effective protection in the event of a failure. The device finds wide application in photovoltaic installations, DC power systems and anywhere where reliable protection of DC circuits is required.

Key features and benefits

• Overload and short-circuit protection: Protects the circuit from damage caused by excessive load or short circuit – just like any standard circuit breaker.
• C characteristic: Allows for safe starting of devices with motors or other loads generating high inrush current.
• Polarity immunity: Allows installation without having to pay attention to correct polarity connection, which simplifies installation and minimizes the risk of errors.
• Compact dimensions: 1 module width allows for efficient use of space in the switchgear cabinet.
• Rated short-circuit breaking capacity of 10kA: Provides effective protection even in the event of serious failures.
• Wide range of wire cross-sections: Supports wires with a cross-section from 1 to 25 mm², both solid and stranded, giving flexibility when choosing wires for the installation.
• Possibility of busbar connection from above and below: Facilitates installation and connection of wires in various installation configurations.
• Contact position indicator: Allows for quick visual control of the breaker status (on/off).
• Operating temperature from -25°C to +75°C: Ensures reliable operation over a wide range of ambient temperatures.

This circuit breaker is a solid solution for professionals and individuals performing DC electrical installations themselves, guaranteeing safety and long-term reliability.