Overcurrent circuit breaker, 6kA, B characteristic, 3-pole, 20A MBN320E

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole Hager MBN320E overcurrent circuit breaker is a key element in protecting electrical installations, designed to protect against the effects of overloads and short circuits. A rated current of 20A combined with a short-circuit breaking capacity of 6kA (Icn) guarantees an effective response in the event of a failure, minimizing the risk of damage to equipment and preventing fires. Characteristic B makes it ideal for circuits with devices with short-term starting currents, e.g. with motors.

Design and application

The MBN320E circuit breaker is designed for mounting on a TH35 rail (standard mounting rail in switchboards). Its compact dimensions (width of 3 modules) allow for efficient use of space in distribution cabinets. The IP20 degree of protection provides basic protection against touch and contamination. Designed to operate at temperatures from -25°C to 70°C, making it suitable for use both indoors and in environments with variable temperature conditions. The possibility of connecting wires with a cross-section from 1 mm² to 35 mm² (solid) or 1 mm² to 25 mm² (stranded) provides flexibility when selecting power cables.

Key features and benefits

• High short-circuit breaking capacity: 6kA provides effective protection against the effects of serious short circuits.
• Characteristic B: Ideal for circuits with devices generating surge currents during start-up (e.g. motors, transformers). Allows you to avoid unnecessary tripping of the circuit breaker during normal operation of devices.
• Three-pole design: Provides complete protection for three-phase electrical circuits.
• Mounting on TH35 rail: Enables quick and easy mounting in standard switchboards.
• Width of 3 modules: Compact dimensions allow you to save space in the distribution cabinet.
• Compliance with standards: The product meets safety standards, ensuring reliable operation and safety of use.
• Possibility of additional equipment: The possibility of mounting additional accessories, such as auxiliary contacts or overcurrent releases, allows you to adapt the functionality of the circuit breaker to specific installation needs.
• Rated voltage 400V and rated impulse withstand voltage Uimp 4kV: Guarantee safe operation in typical electrical installations.

Thanks to these features, the Hager MBN320E circuit breaker is a reliable solution for professionals and end users looking for effective protection of their electrical installations.