Overcurrent circuit breaker, 6kA, B characteristic, 3-pole, 25A MBN325E

Electrical circuit protection with Hager MBN325E circuit breaker

This three-pole circuit breaker from Hager, model MBN325E, is a reliable device used to protect electrical installations against overloads and short circuits. A rated current of 25A combined with characteristic B makes it ideal for protecting lighting circuits, socket circuits and other similar receivers. The short-circuit breaking capacity at 6kA guarantees an effective response in the event of a failure, minimizing the risk of damage and fire.

This circuit breaker is widely used in both domestic and commercial installations. Its compact dimensions (70 mm mounting depth and 3 modules wide) allow for easy installation in electrical distribution boards. Designed to operate in AC systems at 400V and a frequency of 50-60Hz, it provides versatility and compatibility with various installations. The rated insulation voltage Ui is 500V, and the rated impulse withstand voltage Uimp is 4kV – these parameters confirm the high quality and safety of the device.

The MBN325E circuit breaker is characterized by a solid construction and high quality workmanship. It has a protection class of IP20, which provides protection against accidental contact, but does not protect against water ingress. The possibility of flush mounting makes it easy to aesthetically match the surroundings. Additional accessories allow you to expand the functionality of the circuit breaker, e.g. by adding auxiliary or signaling contacts. Thanks to the double mounting clips, replacing the device in the busbar is quick and convenient – it does not require unscrewing neighboring devices (in the 10kA version). Innovative vertical Hager comb busbars facilitate connection between devices in the distribution board, and a field with a protective flap allows for clear and aesthetic labeling of the circuit breaker. Protection against touch IP2x and protective covers eliminate the risk of incorrect wiring.

The circuit breaker meets the requirements of EN 60898 and IEC 60947-2 standards, which guarantees its safety and reliability. The energy limitation class is 3, and the surge category is III – these parameters determine the device's resistance to disturbances in the electrical network. The pollution degree is 2, which means that the circuit breaker is adapted to work in an environment with a moderate level of pollution. The ambient temperature in operating conditions is in the range of -25°C to 70°C, which allows it to be operated in various climatic conditions. The cross-section of the connected single-wire conductor is from 1 to 35 mm², and the multi-wire conductor from 1 to 25 mm² – this allows you to connect wires of different thicknesses.