Overcurrent circuit breaker 25kA, In=25A, characteristic B. 2-pole. AZ-2-B25 174494

Overcurrent circuit breaker – reliable protection for electrical installations

This two-pole overcurrent circuit breaker from Eaton's AZ series, with a rated current of 25A and B characteristic, is a key element ensuring safety in every electrical installation. The short-circuit breaking capacity of 25kA guarantees effective protection against the effects of overloads and short circuits, minimizing the risk of damage and fires. This circuit breaker is used in both domestic and industrial installations where high reliability and rapid response in emergency situations are required.

Features and application

The AZ-2-B25 circuit breaker has been designed with ease of installation and use in mind. Its compact dimensions (3 modules wide) allow for efficient use of space in the distribution board. The B characteristic means that the circuit breaker reacts quickly to short circuits, but tolerates short-term overloads, which is particularly important when connecting devices with electric motors or other loads with high inrush current. The rated impulse withstand voltage of 4kV provides additional safety in the event of overvoltage.

• Overload protection: Protects the circuit from damage caused by excessive load.
• Short-circuit protection: Quickly disconnects the circuit in the event of a short circuit, preventing fires and equipment damage.
• B characteristic: Ideal for protecting circuits with loads with high inrush current (e.g. motors).
• High short-circuit breaking capacity (25kA): Provides effective protection even in difficult conditions.
• Compact dimensions (3 modules): Allows for space-saving use in the distribution board.
• IP20 protection rating: Protection against contact with fingers and solid objects larger than 12.5 mm.

Construction and parameters

The circuit breaker is made of high-quality materials, which guarantees its durability and reliability. It meets the requirements of IEC 60947-2 standards, confirming its safety and compliance with applicable regulations. Energy limitation class 3 indicates its ability to limit short-circuit energy, which further increases the safety of the installation. The rated insulation voltage Ui is 440V and the rated voltage is 400V. Thanks to the possibility of mounting additional equipment, the functionality of the circuit breaker can be adapted to the specific needs of the installation. This circuit breaker is designed to operate in environments with a pollution degree of 2 – i.e. in an environment with moderate dust. The embedding depth is 75mm.