Overcurrent circuit breaker, 6kA series BKN 3P 50A B characteristic BKN 3P B50A

Overcurrent circuit breakers BKN series – reliable installation protection

This three-pole BKN 50A overcurrent circuit breaker, with B characteristic, is a key protective element in every electrical installation. It provides effective protection against overloads and short circuits, minimizing the risk of damage and fires. It is a solid solution for both installers and end-users looking for reliability and safety.

Characteristics and application

BKN circuit breakers with B characteristic are designed to protect circuits where inrush currents occur when devices are switched on. The B characteristic means that the circuit breaker reacts faster to current increases than models with C or D characteristics, which is particularly important for circuits powering devices with electric motors or transformers. The rated current of 50A makes this circuit breaker ideal for protecting circuits with higher power consumption. The 3-pole design allows for protection of all phases in a three-phase installation.

Advantages and design features

• High breaking capacity: 6kA – guarantees effective disconnection of the circuit in the event of a short circuit, protecting both devices and the electrical installation.
• B characteristic: Provides a quick response to inrush currents, which is important for protecting devices sensitive to overvoltage.
• Three-pole design (3P): Enables comprehensive protection in three-phase installations.
• Compliance with IEC/EN 60898-1 standard: Confirms compliance with European safety and quality standards.
• Wide operating temperature range: -5°C to +40°C – enables installation in various environmental conditions.
• Protection degree IP20: Provides protection against touching with fingers and solid objects with a diameter greater than 12.5 mm.
• Solid construction: Made of high-quality materials ensures durability and reliable operation for a long time.
• Wire cross-section: Possibility of connecting wires with a cross-section from 1mm² to 25mm², which provides flexibility when choosing appropriate cables.

The BKN circuit breaker is characterized by a rated current of 50A, a breaking capacity of 6kA and has a B tripping characteristic. It is a three-pole (3P) circuit breaker, compliant with IEC/EN 60898-1 standard, adapted to work at temperatures from -5°C to +40°C and has a protection degree of IP20.

The BKN circuit breaker is not only a protective element, but also an investment in safety and peace of mind. Its solid construction and compliance with standards guarantee reliable operation for many years of use. Installation is simple and intuitive, which will be appreciated by both professional installers and people performing electrical work themselves.