Overcurrent circuit breaker series 15kA 3-pole FAZ-C20/3 278874

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole circuit breaker from the FAZ series is a key element of every safe electrical installation. Designed to protect against the effects of overloads and short circuits, it ensures stable operation and long-term reliability in both residential, commercial, and industrial buildings. Characteristic C makes it ideal for circuits with devices generating inrush currents, such as motors or transformers.

The FAZ-C20/3 circuit breaker features a high breaking capacity of up to 15 kA at 400 V (according to IEC 60947-2), guaranteeing an effective response in the event of a fault. A rated current of 20 A allows for the protection of a wide range of circuits. The compact width of 3 modules simplifies installation in switchboards with limited space.

Features and application

This circuit breaker is used in AC installations with a rated voltage of 400 V and a frequency of 50-60 Hz. Its robust construction and high degree of protection (IP20) ensure safe operation even in harsh environmental conditions – from -25°C to +75°C. The ability to connect solid and stranded wires with a cross-section from 1 to 25 mm² provides flexibility during installation.

• High breaking capacity: 15 kA at 400 V (IEC 60947-2) provides effective short circuit protection.
• Characteristic C: Ideal for circuits with devices generating inrush currents, such as motors or transformers – allows for short-term overloads without unnecessary tripping.
• Compact dimensions: 3 module width simplifies installation in tight switchboards.
• Wide range of applications: Suitable for installations in residential, commercial and industrial buildings.
• Safety: Compliance with EN 60898 and IEC 60947-2 standards guarantees a high level of safety.
• Durability: Made of high-quality materials, ensuring long-term reliability.
• Versatility: Possibility of connecting solid and stranded wires with a cross-section from 1 to 25 mm².

Technical parameters and additional information

The FAZ-C20/3 circuit breaker has energy limitation class 3 and surge category III, which demonstrates its high resistance to interference. The rated impulse withstand voltage Uimp is as high as 4 kV, which further increases its safety in the event of overvoltages. A pollution degree of 2 indicates the possibility of using it in environments with a moderate level of contamination. The possibility of installing additional accessories expands the functionality of the circuit breaker, adapting it to individual installation needs.