Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 6A characteristic D BKJ63Nd 3P D6 BKJ63ND 3P D6

Overcurrent circuit breakers of the BKJ63Nd series – reliable installation protection

The BKJ63Nd overcurrent circuit breaker is a protective element designed to protect electrical circuits against overloads and short circuits. The 3P model with a rated current of 6A and D characteristic provides effective protection in electrical installations in both residential and commercial buildings. The three-pole design makes this circuit breaker ideal for protecting three-phase circuits.

Characteristics and application

BKJ63Nd circuit breakers are characterized by high reliability and durability. The D characteristic means a delayed response to current increase, which is particularly important in the case of loads with high inrush current, such as electric motors or transformers. This minimizes the risk of the circuit breaker tripping unnecessarily during normal operation of the devices. Mounting is done on a standard 35mm DIN rail, which simplifies and speeds up installation. This circuit breaker meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which guarantees its safety and compliance with applicable regulations.

Construction and benefits for the installer

The BKJ63Nd circuit breaker has been designed with ease of installation and maintenance in mind. Compact dimensions (17.8mm wide per pole) allow for efficient use of space in the switchgear cabinet. The ability to connect wires with a cross-section of up to 25mm² provides flexibility in choosing the appropriate cables. Equipped with screw terminals, it ensures a secure and durable electrical connection. It is also worth mentioning the high electrical endurance – the circuit breaker withstands 10,000 operating cycles, which translates to a long service life and infrequent replacement. The use of high-quality materials guarantees resistance to environmental conditions and ensures stable operation for a long time.