Overcurrent circuit breaker 25kA, In=50A, B characteristic. 2-pole. AZ-2-B50 174497

Eaton AZ series overcurrent circuit breaker is a reliable protection for electrical installations, designed for both domestic and industrial applications. Model AZ-2-B50, two-pole, with a rated current of 50A and B characteristic, provides effective protection against overloads and short circuits. The short-circuit breaking capacity of 25kA guarantees safety even in the event of high current flows.

This circuit breaker is particularly useful in circuits with devices with high starting current – the B characteristic allows it to react more slowly to short-term current surges, preventing unnecessary tripping during the starting of motors or other loads. A width of 3 modules makes it easy to install in standard distribution boards.

Features and application

The AZ-2-B50 circuit breaker is characterized by high quality workmanship and compliance with applicable safety standards. Its solid construction ensures long-lasting and trouble-free operation. Use in electrical installations of residential buildings, commercial premises and industrial facilities are just some of its possible applications. Thanks to railway approvals, it can also be used in specific applications related to railway infrastructure.

• High short-circuit breaking capacity (25kA): Ensures effective protection of the installation against the effects of short circuits.
• B characteristic: Ideal for circuits with devices with high starting current (e.g. motors).
• Two-pole design: Allows disconnection of two phases simultaneously, increasing safety.
• 3 module width: Compact dimensions make it easy to install in standard distribution boards.
• Compliance with standards: Guarantee of safety and reliability.
• Expandability: Compatibility with auxiliary accessories allows the circuit breaker to be adapted to individual needs.

Technical parameters and construction

The circuit breaker has been designed with easy installation and intuitive operation in mind. IP20 protection degree provides protection against accidental contact, and rated voltage of 400V and withstand impulse voltage 4kV guarantee safe operation in various environmental conditions. Energy limitation class 3 and surge category 3 indicate a high level of protection against the effects of overvoltage. The design is not explosion-proof, which means it is intended for use in non-hazardous environments. The rated short-circuit switching capacity Icu at 400V is 25kA, and at 230V also 25kA – which confirms its high effectiveness in protecting electrical installations from the effects of short circuits.