Hager NBN325 3-Pole Miniature Circuit Breaker 25A 10kA

The Hager NBN325 is a high-quality 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in both residential and commercial environments. This device is specifically designed to detect and interrupt overcurrents, effectively safeguarding your electrical infrastructure against the risks of overloads and short circuits. With a rated current of 25A and a breaking capacity of 10kA, it offers reliable performance for demanding power distribution systems operating at 400V AC.

Advantages

This circuit breaker stands out due to its precision engineering and high manufacturing standards, which ensure consistent operation and long-term durability. By utilizing advanced thermal-magnetic tripping technology, the device provides rapid response times during fault conditions, thereby minimizing potential damage to connected equipment and wiring. Its compact 3-pole design allows for efficient space utilization within distribution boards, while the robust construction guarantees safety and reliability in various electrical configurations.

Suitable for

• Protection of three-phase electrical circuits in residential buildings
• Safeguarding commercial power distribution panels
• Industrial applications requiring 25A current protection
• Preventing damage from short circuits in 400V AC systems

When it may not be suitable

This device is not intended for use in DC electrical systems or circuits exceeding the rated voltage of 400V AC. It is also not suitable for applications requiring a different current rating or a different number of poles, as this could lead to improper protection and potential safety hazards.

Key specifications

• Number of poles: 3
• Rated current: 25A
• Breaking capacity: 10kA
• Rated operational voltage: 400V AC

How to use

The Hager NBN325 should be installed by a qualified electrician within a standard distribution board or consumer unit. The device is designed for DIN-rail mounting, allowing for quick and secure installation. Ensure that the supply voltage matches the specifications of the breaker before connection. Once installed, the toggle switch allows for manual operation to disconnect or reconnect the circuit as needed during maintenance or troubleshooting.

What to consider before purchase

• Verify that the 25A current rating is appropriate for your specific load requirements
• Ensure the 3-pole configuration matches your three-phase electrical system
• Confirm that the 10kA breaking capacity meets the short-circuit current levels of your installation
• Check available space in your distribution board for a 3-module wide device

Usage recommendations

Regular inspection of the circuit breaker by a professional is recommended to ensure that all connections remain tight and that the device functions correctly under load. Do not attempt to modify or repair the internal mechanism of the breaker.