High-Capacity DC Breaker for Photovoltaic and Communication Systems

The JCB3-63DC represents a specialized DC breaker designed for modern high-voltage direct current applications. This miniature circuit breaker is engineered to provide reliable circuit protection in 1000V DC environments, particularly in photovoltaic systems and telecommunications infrastructure. Its construction follows international safety standards and incorporates advanced interruption technology to handle the unique challenges of DC current interruption, where arc extinction requires specialized design compared to AC systems.

This DC breaker offers comprehensive protection against both short-circuit conditions and overload situations with a breaking capacity of up to 6kA. The device is available in multiple pole configurations including 1-pole, 2-pole, 3-pole, and 4-pole versions, providing flexibility for various circuit requirements. With a wide current rating range extending up to 63A, this protective device can accommodate diverse load conditions while maintaining consistent performance characteristics across its operational range.

A distinctive safety feature of this DC breaker is its integrated contact position indicator, which provides visual confirmation of the circuit status. This allows for quick verification of whether the contacts are open or closed, enhancing operational safety during maintenance procedures. The exclusive design incorporates special arc-chamber technology that ensures rapid arc extinction even under high DC voltage conditions, significantly reducing the risk of damage to connected equipment.

The product complies with IEC 60898-1 standards, ensuring international recognition and acceptance for industrial use. This compliance certifies that the breaker has undergone rigorous testing for performance, durability, and safety. The construction materials are selected for their excellent electrical insulation properties and resistance to environmental factors, ensuring long-term reliability even in demanding operating conditions.

This high-performance DC breaker provides essential protection for critical DC power systems. Its combination of high voltage rating, substantial breaking capacity, and safety features makes it an ideal solution for solar power installations and communication networks where DC circuit protection is paramount. The device offers engineers and system designers a reliable component for ensuring system safety and operational continuity.