Overcurrent circuit breaker, 6kA BKJ63Nd series 2P 10A characteristic B BKJ63Nd 2P B10 BKJ63ND 2P B10

Overcurrent circuit breaker BKJ63Nd 2P B10 is a reliable safety element for electrical installations, designed for both home and commercial use. The device effectively protects circuits against overload and short circuit, ensuring safe operation and minimizing the risk of failure. Made of high-quality materials, it guarantees long life and stable operation in various conditions.

Characteristics and application

This two-pole (2P) circuit breaker with a rated current of 10A and B characteristic is ideal for protecting lighting circuits, socket circuits and other devices with moderate inrush current. Characteristic B means that the circuit breaker reacts quickly to an increase in short-circuit current, but is more tolerant of short-term current surges when starting devices – which is particularly important when connecting receivers with motors or transformers. Mounting is done on a standard 35mm DIN rail, which facilitates installation and replacement.

Advantages and benefits

• Protection against overload and short circuit: Provides effective protection of the electrical installation against damage caused by excessive load or short circuit.
• B characteristic: Thanks to it, the circuit breaker copes well with short-term current surges during device start-up, minimizing the risk of unnecessary circuit tripping.
• High reliability: Made of durable materials, it guarantees long life and stable operation in various environmental conditions.
• Easy installation: Standard mounting on a 35mm DIN rail makes installation and replacement easier and faster.
• Wide range of applications: Suitable for protecting lighting circuits, socket circuits and other devices with moderate inrush current in residential and commercial buildings.
• Compliance with standards: Meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its safety and quality.
• Adapted to work in difficult conditions: Withstands temperatures from -5°C to +40°C.

Technical parameters and construction

The BKJ63Nd circuit breaker is characterized by high impact resistance (Uimp 4kV) and insulation with a voltage of 500V (Ui). It has high mechanical strength (20,000 cycles) and electrical strength (10,000 cycles), which translates into long-term trouble-free operation. The housing is made of high-quality plastic, providing protection against external factors (IP20 protection class). The use of lug terminals allows the connection of wires with a cross-section of up to 25mm². The compact dimensions (17.8mm per pole) allow for efficient use of space in the switchgear cabinet. The rated current of the circuit breaker is 10A at a voltage of 240/415VAC. The rated short-circuit breaking capacity is as high as 6kA at a voltage of 240/415VAC – which ensures effective protection even in the event of serious disturbances in the electrical network.