Overcurrent circuit breaker, 6kA BKJ63Nd series 2P 63A characteristic C BKJ63Nd 2P C63 BKJ63ND 2P C63

Overcurrent circuit breakers of the BKJ63Nd series – reliable installation protection

BKJ63Nd installation circuit breakers are components designed to protect electrical circuits against the effects of overloads and short circuits. They are widely used in both domestic and industrial installations, ensuring safety and protection of connected devices. The BKJ63Nd 2P 63A model with characteristic C is a two-pole circuit breaker with a rated current of 63A, designed to operate in AC and DC networks.

Characteristics and application

BKJ63Nd circuit breakers are characterized by high reliability and durability, confirmed by numerous certificates and compliance with IEC 60898-1 and IEC 60947-2 standards. Characteristic C means that the circuit breaker reacts to overload and short-circuit currents in the range of 5 to 10 times the rated current (63A), making it an ideal solution for protecting circuits with receivers with high inrush current – e.g. electric motors, transformers or heating devices. This minimizes the risk of the circuit breaker tripping unnecessarily during normal operation of these devices.

The circuit breaker design allows mounting on a standard 35mm DIN rail, which facilitates its installation and replacement. It is equipped with screw terminals or lugs, which ensures a secure connection of wires with a cross-section of up to 25mm². The two-pole design (2P) means that the circuit breaker protects two phase conductors, which is particularly important in three-phase installations or in circuits requiring additional protection.

Advantages and user parameters

• High breaking capacity: 6kA at 240/415VAC provides effective protection against the effects of short circuits.
• Characteristic C: Optimal for protecting circuits with receivers with high inrush current.
• DIN rail mounting: Facilitates quick and easy installation.
• Mechanical durability: The circuit breaker withstands 20,000 operating cycles, guaranteeing long-term use.
• Electrical durability: Provides 10,000 switching cycles on load.
• Wide operating temperature range: From -5°C to +40°C allows use in various environmental conditions.
• Compliance with standards: Meets the requirements of IEC 60898-1 and IEC 60947-2 standards, confirming its safety and quality.
• Possibility of using additional accessories: SHT, OVT / UVT increase the functionality of the device.

BKJ63Nd circuit breakers are a solid element of every electrical installation, ensuring the safety of people and property and minimizing the risk of failures caused by overloads or short circuits.