Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 1A characteristic D BKJ63Nd 3P D1 BKJ63ND 3P D1

Overcurrent circuit breakers BKJ63Nd – reliable installation protection.

The BKJ63Nd overcurrent circuit breaker is a protective element designed to protect electrical circuits against overloads and short circuits. The BKJ63Nd 3P 1A model with D characteristic provides effective protection in electrical installations, both in residential and commercial buildings. The three-pole design allows for protection of the entire circuit, and the D characteristic ensures that the breaker handles impulse loads and inrush currents typical of devices with motors effectively.

Construction and application

BKJ63Nd circuit breakers are mounted on a 35mm DIN rail and are characterized by compact dimensions. The width of a single pole is 17.8mm, which allows for efficient use of space in the switchgear cabinet. The use of high-quality materials guarantees long-lasting and reliable operation of the device. This circuit breaker is used in electrical installations of residential, commercial and industrial buildings where protection against overloads and short circuits is required. It is particularly recommended for protecting circuits powering devices with high inrush currents, such as electric motors or transformers.

Characteristics and benefits

• D characteristic: Provides a delayed response to short-term current increases, which is crucial when protecting devices with motors or other impulse loads. This minimizes the risk of the circuit breaker tripping unnecessarily during normal device operation.
• Rated capacity: 6kA at 240/415VAC – high breaking capacity guarantees installation safety in the event of a short circuit.
• Three-pole design (3P): Protects all phase conductors simultaneously, providing comprehensive circuit protection.
• DIN rail mounting: Enables quick and easy mounting in the switchgear cabinet.
• Compliance with standards: BKJ63Nd circuit breakers meet the requirements of IEC 60898-1 and IEC 60947-2 standards, confirming their safety and reliability.
• Wide voltage range: Possibility of use in AC and DC circuits (up to 48VDC).
• Possibility of connecting conductors up to 25mm²: Allows the use of the circuit breaker with different conductor cross-sections.
• High electrical endurance: Ensures long-lasting and trouble-free operation of the device (10,000 operating cycles).

Thanks to the combination of advanced technology and a solid construction, BKJ63Nd circuit breakers are a reliable solution for professionals and users who value safety and comfort of use.