Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 13A characteristic B BKJ63Nd 3P B13 BKJ63ND 3P B13

Overcurrent circuit breaker BKJ63Nd is a safety element protecting the electrical installation against the effects of overloads and short circuits. Designed for mounting on a 35mm DIN rail, it is a reliable solution for both installers and end users. This three-pole (3P) circuit breaker with a rated current of 13A and B characteristic provides effective protection of electrical circuits in residential and commercial buildings.

Characteristics and application

BKJ63Nd series circuit breakers are characterized by high reliability and durability, confirmed by compliance certificates with IEC 60898-1 and IEC 60947-2 standards. The B characteristic means that the circuit breaker reacts quickly to an increase in short-circuit current, but is more resistant to short-term current surges than circuit breakers with C or D characteristics. This makes it ideal for protecting lighting circuits, socket outlets and other electrical devices with moderate starting current. Use in lighting circuits and sockets ensures safe use and minimizes the risk of damage to the installation.

Construction and mounting

The circuit breaker is based on solid materials, which guarantees long life and stable operation even in difficult operating conditions. Mounting is done by snapping onto a standard 35mm DIN rail – this process is quick and intuitive, which translates into time savings during installation. The circuit breaker has screw terminals or lugs (depending on the model), allowing connection of wires with a cross-section of up to 25mm². The compact dimensions (17.8mm wide per pole) allow for efficient use of space in the switchgear cabinet.

• With a rated current of 13A, the circuit breaker is an optimal choice for most standard circuits in residential buildings.
• The B characteristic ensures a quick response to short circuits, while exhibiting resistance to short-term overloads.
• The rated breaking capacity of 6kA at 240/415VAC guarantees safe disconnection of the circuit in the event of a short circuit – this is important to ensure the safety of the installation.
• Mounting on a 35mm DIN rail is a standard and convenient way to install in electrical switchgear, saving time and making work easier.
• Electrical life of 10,000 cycles indicates high durability of the device and minimizes the need for frequent replacement.
• A wide range of operating temperatures from -5°C to +40°C enables the use of the circuit breaker in various environmental conditions.
• Protection class IP20 provides protection against finger contact and solid objects larger than 12.5 mm, increasing safety of use.