Overcurrent circuit breaker, 6kA BKN series 1P 50A characteristic D BKN 1P D50A

Overcurrent circuit breakers of the BKN series – reliable protection of installations

The BKN series installation circuit breaker is an element that will find application in both domestic and industrial installations. It provides effective protection of electrical circuits against overload and short circuit, which translates into safety of use and longer life of connected devices. Characteristic D makes this circuit breaker particularly recommended for protecting circuits with receivers with high inrush current, such as motors or transformers.

This single-pole circuit breaker with a rated current of 50A, with characteristic D, is designed for mounting on a 35mm DIN rail. Its compact dimensions (17.8mm per pole) allow for efficient use of space in the switchgear cabinet. This circuit breaker is characterized by high reliability and long service life, confirmed by numerous tests and CE certificates.

Construction features and application

The BKN 1P D50A circuit breaker has lug terminals allowing the connection of wires with a cross-section of up to 25mm². This facilitates installation and ensures a secure electrical connection. The use of characteristic D means that the circuit breaker tolerates short-term overloads that occur during the start-up of devices with induction motors or other receivers requiring high starting current. This minimizes the risk of unnecessary tripping of the circuit.

This circuit breaker is characterized by a rated current of 50A, making it ideal for protecting circuits with medium load. Its characteristic D provides resistance to short-term overloads typical of devices with motors. Lug terminals allow the connection of wires with a cross-section of up to 25mm², ensuring a solid connection. Mounting is done standardly on a 35mm DIN rail, which facilitates installation in electrical switchboards. The high breaking capacity of 6kA guarantees safe disconnection of the circuit in the event of a short circuit, and the compact dimensions (17.8mm wide) allow for saving space in the distribution cabinet.

BKN circuit breakers are compatible with a wide range of additional accessories, such as auxiliary switches, which allows for expanding the functionality of the electrical installation and adapting it to the individual needs of the user. A wide range of rated voltage (230/400VAC) means that this circuit breaker can be used in both single-phase and three-phase installations.