Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 3A characteristic B BKJ63Nd 3P B3 BKJ63ND 3P B3

Overcurrent circuit breakers BKJ63Nd – reliable installation protection

This three-phase overcurrent circuit breaker BKJ63Nd with a rated current of 3A and B characteristic is a key element of every safe electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and wires. It is an ideal solution for both home and commercial installations where high reliability and safety are required.

Design and application

The BKJ63Nd circuit breaker is designed for mounting on a standard 35mm DIN rail. Its compact dimensions (17.8mm per pole) allow for efficient use of space in the distribution board. Designed for AC and DC circuits, it offers versatility of application. The ability to connect wires with a cross-section of up to 25mm² provides flexibility in selecting appropriate cables. This circuit breaker is used to protect lighting circuits, socket circuits and other electrical devices with moderate power consumption. The B characteristic makes it ideal for circuits with high inrush current – it reacts more slowly to short current surges, therefore it tolerates starting motors well.

Key features and benefits

• High breaking capacity: 6kA at 240/415VAC guarantees quick and safe disconnection of the circuit in the event of a failure.
• B characteristic: Provides optimal protection against overloads and short circuits in applications with devices with moderate inrush current.
• Versatility: The ability to use in AC and DC circuits increases the range of applications.
• Easy installation: Standard mounting on a 35mm DIN rail facilitates and speeds up installation.
• Durable construction: Made of high-quality materials ensures long life and reliable operation – withstands up to 10,000 operating cycles.
• Compliance with standards: Meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its safety and quality.
• Adapted for wires with large cross-section: Support for cables up to 25mm² gives freedom in choosing wires tailored to the needs of the installation.

Thanks to these features, the BKJ63Nd circuit breaker is a solid and reliable element of every electrical installation, ensuring safety of use and protection against damage.