Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 50A characteristic C BKJ63Nd 3P C50 BKJ63ND 3P C50

Overcurrent circuit breaker BKJ63Nd is a three-pole protection device designed to protect electrical installations against overloads and short circuits. It is characterized by high reliability and durability, making it an ideal solution for both installers and end-users. Model BKJ63Nd 3P C50, with a rated current of 50A and C characteristic, provides effective protection of electrical circuits in residential and commercial buildings.

Characteristics and application

Circuit breakers from the BKJ63Nd series are designed for mounting on a 35mm DIN rail. Their compact dimensions (17.8mm wide per pole) allow for efficient use of space in distribution boards. The C characteristic means that the circuit breaker reacts with a certain delay to an increase in current, allowing it to handle devices with motors or other elements generating high inrush currents – e.g. pumps, air conditioners or power tools – without problems. This ensures stable operation of the installation and minimizes the risk of unnecessary tripping of the circuit.

Advantages and benefits

• High breaking capacity: 6kA at 240/415VAC guarantees effective disconnection of the circuit in the event of a short circuit, protecting devices and the installation from damage.
• Mechanical and electrical durability: The circuit breaker withstands 20,000 mechanical cycles and 10,000 electrical cycles, which translates to a long service life and reliable operation.
• Wide range of applications: The ability to choose different rated currents (from 1A to 63A) allows you to match the circuit breaker to the specific needs of the installation.
• Easy installation: Mounting on a standard 35mm DIN rail is quick and intuitive, making it easier for installers.
• Safety: Compliance with IEC 60898-1 and IEC 60947-2 standards ensures a high level of safety.
• Possibility of connecting wires with a cross-section of up to 25mm²: Provides flexibility in choosing wires for a specific application.

BKJ63Nd circuit breakers are solid and reliable devices that meet the requirements of modern electrical installations. Their versatility makes them ideal for both new installations and the modernization of existing systems.