Circuit breaker 25kA, In=20A, characteristic D. 3+N pole. AZ-3N-D20 174528

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole circuit breaker with a neutral pole (3+N) is a key element in protecting electrical installations. It provides effective protection against overloads and short circuits, and its D characteristic makes it particularly suitable for circuits with high inrush current, such as devices with motors or transformers. The rated current of 20A and the short-circuit breaking capacity of 25kA guarantee stable and safe system operation.

This circuit breaker is used in both domestic and industrial installations where high reliability and resistance to interference are required. The compact dimensions (width of 2 modules) make it easy to install in switchboards with limited space. In addition, the ability to mount accessories expands the functionality of the circuit breaker, adapting it to the specific needs of the installation.

Features and benefits for professionals and users

• High short-circuit breaking capacity (25kA): ensures the safety of the installation even in the event of serious failures. This is crucial for installers who must meet strict safety standards.
• D characteristic: ideal for circuits with devices with high inrush current – protects against unnecessary tripping of the circuit breaker when starting motors, transformers or power supplies.
• 3+N construction: enables full protection of a three-phase circuit with a neutral pole, which is particularly important in modern electrical installations.
• Compliance with IEC 60947-2 standards: guarantees quality and safety confirmed by certificates.
• Compact dimensions (2 modules): facilitate installation in tight switchboards – saving space is a valuable advantage for installers.
• Expandability: thanks to auxiliary accessories, the functionality of the circuit breaker can be adapted to specific application needs.
• IP20 protection degree: provides protection against accidental contact – increases the level of safety.
• Rated voltage 400V and rated impulse withstand voltage Uimp 4kV: ensures reliable operation in typical operating conditions of electrical installations.

This circuit breaker is a solid solution for anyone who values safety and reliability in an electrical system. Its robust construction and compliance with applicable standards make it an ideal choice for both professional installers and demanding end users.