Overcurrent circuit breaker, 6kA BKJ63Nd series 1P 13A B characteristic BKJ63Nd 1P B13 BKJ63ND 1P B13

Overcurrent circuit breaker BKJ63Nd 1P 13A with B characteristic is a safety element protecting the electrical installation against overloads and short circuits. It is a device designed for mounting on a 35mm DIN rail, providing effective protection in circuits with a rated current of up to 13A.

Characteristics and application

The BKJ63Nd circuit breaker from the BKJ63N series is characterized by high reliability and durability. The construction based on IEC 60898-1 and IEC 60947-2 standards guarantees safety and compliance with applicable standards. The B characteristic means that the circuit breaker reacts quickly to current increase, which is particularly important in circuits with inductive or capacitive loads, where short-term current surges occur during start-up. This minimizes the risk of unnecessary tripping of the device during normal operation, while ensuring effective protection in the event of a failure.

Construction and mounting

The circuit breaker has compact dimensions (17.8mm wide for one pole) which allows for efficient use of space in the distribution box. The possibility of connecting wires with a cross-section of up to 25mm² using screw terminals or lugs provides flexibility during installation. Mounting is done by snapping onto a standard 35mm DIN rail - this process is quick and intuitive for both professionals and less experienced users. The circuit breaker is designed to operate at temperatures from -5°C to +40°C.

Parameters and benefits

The device offers a rated current of 13A and a short-circuit breaking capacity of up to 6kA at 240/415VAC. This ensures effective protection of the electrical installation against the effects of overloads and short circuits, minimizing the risk of damage to equipment and fires. The BKJ63Nd circuit breaker also has high mechanical endurance (20,000 cycles) and electrical endurance (10,000 cycles), which guarantees long-term and trouble-free operation. The IP20 degree of protection protects against contact with fingers and against the ingress of solid objects larger than 12.5 mm.