Overcurrent circuit breaker, 6kA BKJ63Nd series 2P 63A B characteristic BKJ63Nd 2P B63 BKJ63ND 2P B63

Overcurrent circuit breakers BKJ63Nd series – reliable installation protection

BKJ63Nd series installation circuit breakers are compact devices designed to protect electrical circuits against overloads and short circuits. The 2P model with a rated current of 63A and B characteristic is an optimal solution for both home and commercial installations. The use of characteristic B provides effective protection against moderate overcurrents, as well as a quick response in the event of a short circuit.

Construction and application

BKJ63Nd circuit breakers are mounted on a 35mm DIN rail, which facilitates and speeds up their installation. Their modular design allows for the creation of electrical switchboards with various configurations. These devices are widely used in protecting lighting circuits, socket circuits and electrical devices with moderate power consumption. A wide range of rated currents (1A to 63A) allows you to match the circuit breaker to specific installation needs.

• Overload and short circuit protection: the basic function of the circuit breaker, protecting wires and devices from damage.
• Mounting on 35mm DIN rail: standard mounting for easy installation and replacement.
• High electrical endurance: guarantees long-lasting and reliable operation of the device (10,000 cycles).
• Compliance with IEC 60898-1 and IEC 60947-2 standards: confirmation of safety and product quality.
• Suitable for working with wires with a cross-section of up to 25mm²: provides flexibility in wire selection.

Characteristics and parameters

The BKJ63Nd 2P B63 circuit breaker has a B characteristic, which means that its operation is delayed in relation to sudden current surges, typical for starting motors or transformers. This avoids unnecessary tripping of the device during normal operation, while ensuring effective protection in the event of a real hazard. The rated current of 63A and the short-circuit breaking capacity of 6kA (at 240/415VAC) guarantee adequate protection for most standard electrical circuits. The width of the circuit breaker is 17.8mm per pole, which allows for optimal use of space in the switchboard.