Overcurrent switch, 6kA BKJ63Nd series 2P 1A B characteristic BKJ63Nd 2P B1 BKJ63ND 2P B1

Overcurrent circuit breaker BKJ63Nd 2P 1A is a reliable safety element protecting electrical installations against the effects of overloads and short circuits. It belongs to the BKJ63Nd series, designed by LS Electric, and is characterized by high efficiency and durability. It is a two-pole (2P) circuit breaker with a rated current of 1A and a B characteristic, which means it is particularly well suited for protecting circuits with devices with high inrush current – such as motors or transformers.

Protection and safety

The BKJ63Nd circuit breaker provides comprehensive protection of the electrical installation. Its main task is to quickly disconnect the circuit in the event of a dangerous increase in current, minimizing the risk of damage to equipment and fire. The B characteristic means that the circuit breaker reacts to overload currents in the range of 3 to 5 times the rated current, making it an ideal solution for circuits with loads generating short-term peak power consumption. The rated short-circuit breaking capacity is 6kA at 240/415V AC, which guarantees effective protection even in the event of serious disturbances.

Installation and application

The circuit breaker is designed for mounting on a 35mm DIN rail, which facilitates its installation and replacement. Compact dimensions (especially important in limited space in switchboards) and a solid construction ensure ease of use and long-term reliability. Circuit breakers from the BKJ63Nd series are widely used in residential, commercial and industrial construction – wherever reliable protection of electrical installations is required. The possibility of using additional accessories (AX, AL, SHT, OVT, UVT) allows you to adapt the functionality of the circuit breaker to the specific needs of a given installation.

Construction features and compliance with standards

The BKJ63Nd circuit breaker meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its safety and compliance with applicable standards. It has a protection degree of IP20, which means protection against contact with fingers and against the ingress of solid objects larger than 12.5 mm. Made of high-quality materials, it ensures long-term and trouble-free operation in a wide range of ambient temperatures (from -5°C to +40°C). The use of screw or lug terminals facilitates the connection of wires with a cross-section of up to 25mm².