Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 63A characteristic C BKJ63Nd 3P C63 BKJ63ND 3P C63

Overcurrent circuit breaker – reliable protection for your installation

This three-pole overcurrent circuit breaker from the BKJ63Nd series, with a rated current of 63A and C characteristic, is a key element of every safe and reliable electrical installation. Designed to protect circuits against overloads and short circuits, it ensures safe operation and long-term device performance. It is an ideal solution for both professional installers and end-users looking for proven protection.

Design and application

The BKJ63Nd circuit breaker is mounted on a standard 35mm DIN rail. Its compact dimensions (17.8mm per pole) allow for efficient use of space in the distribution board. It is designed for use in AC and DC circuits, offering a wide range of applications in residential, commercial and industrial buildings. Thanks to its high resistance to mechanical and electrical damage, it guarantees long-lasting and trouble-free operation.

Key features and benefits

• C characteristic: provides optimal protection against overloads and short circuits, allowing for safe starting of devices with higher inrush current (e.g. motors). It allows it to react more slowly to short current surges, therefore it tolerates starting devices with a motor well.
• Rated current 63A: enables protection of circuits with higher power consumption, which is particularly important when powering devices with high energy demand.
• Breaking capacity 6kA: guarantees effective disconnection of the circuit in the event of a short circuit, minimizing the risk of damage to equipment and fire. Protects the circuit against overload and short circuit — like most circuit breakers in this class.
• Wide range of rated voltages: the circuit breaker works with installations with a voltage of 240/415VAC (1P) and 415VAC (2-4P), which increases its versatility.
• Durable construction: made of high-quality materials ensures resistance to weather conditions and long-term operation.
• Compliance with standards: meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its safety and reliability.
• Mounting: easy mounting on a 35mm DIN rail saves time during installation.

Technical parameters in brief

The BKJ63Nd circuit breaker is characterized by high quality workmanship and advanced technical parameters: the rated current is 63A, it has a C characteristic and a breaking capacity of 6kA. The rated voltage is 240/415VAC and the number of poles is 3P. Complies with IEC 60898-1 / IEC 60947-2 standards.

BKJ63Nd circuit breakers are available in various versions (1P, 1P+N, 2P, 3P, 3P+N, 4P) allowing them to be adapted to the individual needs of each installation. However, remember that this particular model is a three-pole version (3P).