Circuit breaker 25kA, In=25A, B characteristic. 3+N pole. AZ-3N-B25 174520

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole circuit breaker with a neutral pole (3+N) is a key element of every safe and efficient electrical installation. Designed to protect against the effects of overloads and short circuits, it provides reliable operation in homes, commercial buildings, and demanding industrial environments. A rated current of 25A combined with characteristic B makes it an ideal solution for protecting circuits with devices with high inrush current, such as motors or transformers.

Design and parameters for professionals

The Eaton AZ-3N-B25 circuit breaker is characterized by a high short-circuit breaking capacity of 25kA at 230V and 400V, which guarantees effective protection even in the event of serious failures. Mounting on a DIN rail (6 modules wide) facilitates integration with existing switchboards. Energy limitation class 3 and surge category III confirm its resistance to interference and ability to operate in difficult conditions. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV. Protection degree IP20 provides basic protection against contact and ingress of solid objects.

Universal application and additional functions

This circuit breaker not only protects the installation but also offers flexibility thanks to the possibility of expanding it with additional accessories. Simultaneous disconnection of the N pole increases safety during maintenance and repairs. Thanks to railway approvals, it can also be used in specific applications related to railway infrastructure. The use of characteristic B means that the circuit breaker reacts quickly to overloads, but tolerates short-term current surges during device start-up – which is particularly important for motors and transformers.

• High breaking capacity: 25kA ensures effective protection against the effects of short circuits.
• Characteristic B: ideal for circuits with devices with high inrush current.
• 3+N poles: protection for both phase and neutral conductors.
• Expandability: compatible with Eaton auxiliary accessories.
• DIN rail mounting: easy and quick installation in standard switchboards.
• Railway approvals: possibility of use in specific railway applications.
• Compliance with standards: ensures safety and reliable operation in accordance with applicable regulations.