Overcurrent circuit breaker, 6kA BKJ63Nd series 1P 4A characteristic C BKJ63Nd 1P C4 BKJ63ND 1P C4

Overcurrent circuit breakers BKJ63Nd series – reliable installation protection

The LS Electric BKJ63Nd series circuit breaker is a key element of every safe electrical installation. Designed to protect circuits against overloads and short circuits, it provides not only safety of use but also long-term reliability. Model BKJ63Nd 1P C4, with a rated current of 4A and C characteristic, is ideal for protecting circuits with a mixed character – both those with resistive loads (e.g., heaters) and inductive loads (e.g., motors).

This single-pole circuit breaker is characterized by high efficiency and easy mounting on a DIN rail. Its compact size allows for optimal use of space in the distribution board. The breaker's design provides visual contact status control, making it easier to quickly identify any problems.

Characteristics and application

BKJ63Nd circuit breakers with C characteristic are particularly recommended for applications where short-term inrush currents occur, such as starting electric motors or devices with heating elements. The C characteristic allows for momentary exceeding of the rated current without unnecessary tripping of the circuit, which minimizes the risk of downtime of devices. The rated short-circuit breaking capacity at 6kA guarantees effective protection in the event of a serious failure.

• Overload protection: Protects wires and devices from damage caused by excessive current draw.
• Short-circuit protection: Instantly interrupts the circuit in the event of a short circuit, minimizing the risk of fire and equipment damage.
• Wide range of applications: Ideal for home installations, commercial buildings and industrial facilities.
• DIN rail mounting: Enables quick and easy mounting in the distribution board.
• Visual status indication: Allows easy identification of the breaker status (on/off).
• Operating temperature: Trouble-free operation in the temperature range from -5°C to +40°C.

The BKJ63Nd 1P C4 circuit breaker meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its high quality and safety of use. It provides reliable protection of the electrical installation for a long time, giving confidence in the safe operation of the system. The cross-section of conductors connected to the circuit breaker can range from 1 mm² to 25 mm².