Overcurrent circuit breaker, 6kA BKJ63Nd series 4P 6A B characteristic BKJ63Nd 4P B6 BKJ63ND 4P B6

Overcurrent circuit breaker BKJ63Nd 4P 6A with B characteristic is a reliable protection for electrical installations, designed for both home and professional use. This four-pole circuit breaker, with a rated current of 6A, provides effective protection against overloads and short circuits, minimizing the risk of equipment damage and fire.

Characteristics and Application

The BKJ63Nd circuit breaker with B characteristic is particularly recommended for protecting circuits with a load characteristic with short-term current surges, e.g. lighting circuits, general-purpose sockets or household appliances. The B characteristic means that the circuit breaker reacts quickly to a short-circuit current increase, but tolerates short-term overloads, which is important when starting devices with electric motors. The rated breaking capacity of 6kA guarantees safety even in the event of serious failures.

Construction and Installation

The BKJ63Nd circuit breaker is designed for mounting on a standard 35mm DIN rail. Its compact dimensions (17.8mm wide per pole) allow for efficient use of space in the distribution board. The ability to connect wires with a cross-section of up to 25mm² provides flexibility when selecting appropriate cables. The circuit breaker complies with IEC 60898-1 and IEC 60947-2 standards, which confirms its quality and safety. Designed to operate at temperatures from -5°C to +40°C, making it a universal solution for various environmental conditions.

Key Advantages

• High breaking capacity: 6kA ensures effective disconnection of the circuit in the event of a short circuit, protecting equipment and installation.
• B characteristic: Ideal for protecting circuits with devices generating short-term current surges (e.g. motors).
• DIN rail mounting: Quick and easy installation in standard distribution boards.
• Wide range of applications: Suitable for both home and industrial installations.
• Compliance with standards: Meets the requirements of IEC 60898-1 and IEC 60947-2 standards guaranteeing safety of use.
• Voltage universality: Suitable for operation in single-phase (240VAC) and three-phase (415VAC) circuits.
• Possibility of connecting wires with a large cross-section: Supports cables up to 25mm², providing installation flexibility.