Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 25A characteristic B BKJ63Nd 3P B25 BKJ63ND 3P B25

Overcurrent circuit breakers BKJ63Nd series – reliable installation protection

The BKJ63Nd overcurrent circuit breaker is an electrical installation protection element, designed to protect against the effects of overloads and short circuits. The three-pole version with a rated current of 25A and B characteristic makes it an ideal solution for both home and commercial installations. The device is characterized by high efficiency and durability, ensuring safe use for a long time.

Functionality and application

The BKJ63Nd circuit breaker is designed for mounting on a DIN rail, which facilitates its installation and replacement. Its compact size allows for efficient use of space in the distribution box. The use of characteristic B means that the circuit breaker reacts quickly to current increase, but is resistant to short-term load surges, typical for starting motors or other devices with high power consumption. This minimizes the risk of unnecessary circuit tripping.

Circuit breakers from the BKJ63Nd series are used in:

• Protection of lighting circuits
• Securing socket outlets
• Protection of electrical circuits in residential and public buildings
• Electrical installations in light industry

Construction features and parameters

The BKJ63Nd circuit breaker is made of high-quality materials, which guarantees its reliability and long service life. It has an IP20 degree of protection, which provides protection against accidental contact. The cross-section of the connection wires is from 1 to 25 mm², which allows connecting wires of different thicknesses. The short-circuit strength is 6kA, which ensures effective protection of the installation in the event of a short circuit. Additionally, the circuit breaker is equipped with an optical trip indicator, which facilitates identification of the cause of the circuit disconnection. The device meets the requirements of IEC 60898-1 and IEC 60947-2 standards, which confirms its compliance with European safety standards. The operating temperature is in the range of -5°C to +40°C, which allows its use in various environmental conditions. The rated voltage is 230/400V AC.