Overcurrent circuit breaker, 6kA BKN series 3P 25A B characteristic BKN 3P B25A

Three-pole overcurrent circuit breaker – reliable installation protection

This three-pole overcurrent circuit breaker from the BKN series, with a rated current of 25A and B characteristic, is a key element ensuring safety in every electrical installation. It is designed to protect circuits against the effects of overloads and short circuits, making it indispensable in both residential and commercial buildings. Its compact design (3 modules) facilitates mounting in standard distribution boards.

Characteristics and application

The BKN circuit breaker with B characteristic is characterized by a fast response to overloads, making it an ideal solution for protecting lighting circuits, socket outlets and control devices. This characteristic means that the circuit breaker reacts quickly to a current increase above the rated value, minimizing the risk of damage to wires and connected devices. The rated short-circuit breaking capacity of 6kA guarantees effective protection even in the event of serious disturbances in the network.

This circuit breaker is compatible with TH35 (DIN) mounting rails, which greatly facilitates its installation and replacement. Cage clamps allow connection of wires with a cross-section from 1mm² to 16mm², ensuring a solid and safe connection. Designed to operate at temperatures from -5°C to 40°C, it meets safety standards and has a CE certificate.

Construction and parameters

The BKN 3P B25A circuit breaker is made of high-quality materials, guaranteeing its durability and reliability. Its construction allows for multiple use – after tripping, it can be re-engaged without the need for replacement. A width of 3 modules allows for efficient use of space in the distribution board. The rated voltage of 400V AC and frequency of 50/60 Hz make it universal and can be used in various electrical systems. The rated short-circuit breaking capacity Icn is 6kA at 400V according to EN 60898 and 10kA at 400V according to EN 60947-2.