Overcurrent switch, 6kA BKJ63Nd series 2P 3A B characteristic BKJ63Nd 2P B3 BKJ63ND 2P B3

Overcurrent circuit breaker BKJ63Nd 2P 3A with B characteristic is a reliable safety element for electrical installations. Designed to protect against the effects of overloads and short circuits, it is a key component in ensuring user safety. This two-pole circuit breaker, with a rated current of 3A, is used in both domestic and industrial installations.

Characteristics and application

The BKJ63Nd circuit breaker is characterized by a B characteristic, which means it is ideal for protecting circuits with devices with high inrush current – such as electric motors or transformers. This prevents short-term current surges during device start-up from causing unnecessary circuit tripping. The circuit breaker design based on IEC 60898-1 and IEC 60947-2 standards guarantees its high quality and reliability. Mounting on a standard 35mm DIN rail simplifies installation and integration with existing electrical infrastructure.

Construction and parameters

The BKJ63Nd circuit breaker is designed for durability and functionality. It has high resistance to environmental conditions, and its compact dimensions (17.8mm wide per pole) allow for efficient use of space in the switchgear cabinet. The rated short-circuit breaking capacity is 6kA at 240/415VAC, ensuring effective protection of the installation in the event of a serious failure. Made of high-quality materials, it ensures long-lasting and trouble-free operation – confirmed by a cycle of 10,000 electrical operations and 20,000 mechanical operations. The possibility of connecting wires with a cross-section of up to 25mm² using lug connectors provides flexibility during installation.

Key product features

• Overload and short circuit protection: the basic function of the circuit breaker, protecting the electrical installation from damage.

• B characteristic: ideal for circuits with devices with high inrush current, minimizing the risk of false tripping.

• Rated short-circuit breaking capacity 6kA: high value ensuring effective protection in the event of a serious failure.

• Mounting on 35mm DIN rail: standard mounting simplifying integration with existing infrastructure.

• Durable construction: ensures long-lasting and trouble-free operation of the device.

• Compliance with IEC 60898-1 and IEC 60947-2 standards: confirmation of high quality and safety of the product.