Overcurrent circuit breaker, 6kA BKJ63Nd series 3P 3A characteristic D BKJ63Nd 3P D3 BKJ63ND 3P D3

Overcurrent circuit breaker BKJ63Nd 3P 3A with characteristic D is a protective element for electrical installations against overloads and short circuits. It belongs to the BKJ63Nd series from LS Electric, known for its reliability and high-quality components. This circuit breaker, designed for mounting on a 35mm DIN rail, provides effective protection for electrical circuits in residential and commercial buildings.

Protection and application

This three-pole (3P) circuit breaker with a rated current of 3A is characterized by a D tripping curve. This means that it is particularly well suited for protecting circuits with receivers generating high inrush currents during start-up – such as motors, transformers or heating devices. The D characteristic allows for temporary overloads without unnecessary tripping of the circuit breaker, which minimizes the risk of disruption to the operation of devices. This ensures stable operation of the installation and protects it from damage caused by sudden load surges.

Construction and parameters

The BKJ63Nd circuit breaker is made of high-quality materials, which guarantees its durability and reliability. It has a short-circuit breaking capacity of up to 6kA at 240/415V AC, making it suitable for most standard electrical installations. The width of a single pole is 17.8mm, which allows for efficient use of space in the distribution board. Compliance with IEC 60898-1 and IEC 60947-2 standards confirms its safety and compliance with applicable regulations. The circuit breaker has lug terminals allowing for easy and secure connection of wires with a cross-section of up to 25mm².

Why choose BKJ63Nd?

• High short-circuit breaking capacity (6kA): Provides effective protection in the event of serious failures.
• Characteristic D: Ideal for protecting circuits with receivers with high inrush currents.
• Durable construction: Guarantee of long-term and reliable operation.
• Compliance with standards: Confirmation of product safety and quality.
• Easy installation: Quick and easy installation on a standard 35mm DIN rail.
• Universal application: Suitable for both residential and commercial installations.