Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 63A characteristic B BKJ63Nd 3P B63 BKJ63ND 3P B63

Overcurrent circuit breaker BKJ63Nd 3P 63A is an element used to protect electrical installations from the effects of overloads and short circuits. It is a three-pole circuit breaker with a rated current of 63A and a B characteristic, which means it provides a quick response to current increase, protecting sensitive electronic devices. It replaces the BKN series, offering improved technical parameters, including separate terminals for wires and busbars – a solution appreciated by installers for its convenient mounting.

Protection and application

Circuit breakers from the BKJ63Nd series are widely used in both residential and industrial construction. They protect electrical circuits from damage caused by overload or short circuit, ensuring the safety of the installation. They are indispensable in places where reliable protection against the effects of sudden current surges is required. The B characteristic makes them particularly recommended for circuits powering devices with high starting power consumption, such as electric motors.

Construction and characteristic features

The BKJ63Nd circuit breaker has been designed for easy mounting on a standard 35mm DIN rail. Its compact dimensions allow installation even in limited spaces. Made of high-quality materials, it ensures long-lasting and reliable operation. Compliance with IEC 60898-1 and IEC 60947-2 standards guarantees safety and high product quality. This circuit breaker has a short-circuit breaking capacity of up to 6kA at 240/415VAC, making it an effective protective element in various types of electrical installations. Additionally, its construction allows the connection of wires with a cross-section of up to 25mm².

This circuit breaker is characterized by a rated current of 63A, which allows protection of circuits with higher power demand. Its B characteristic provides a quick response to current increase, protecting electronic devices and circuits with electric motors. The short-circuit breaking capacity at 6kA guarantees effective protection in the event of a short circuit. Mounting is done using a standard 35mm DIN rail, which facilitates and speeds up installation. Compliance with IEC 60898-1 and IEC 60947-2 standards confirms the safety and high quality of the product. Separate terminals facilitate the connection of wires and busbars, and a wide range of operating temperatures from -5°C to +40°C allows the use of the circuit breaker in various environmental conditions (correction factors should be taken into account).