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Help CenterDC Circuit Breaker FK6-63DC 63A Rated Current Low Voltage Protection Device
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As a leading manufacturer specializing in electrical protection solutions, Jinhua Dika Electrical Equipment Co., Ltd. is proud to introduce our FK6-63DC DC Circuit Breaker. Designed for the demanding requirements of DC power systems, this device provides reliable and precise overcurrent protection up to 63A. With our extensive experience and commitment to quality, evidenced by our ISO9001-certified manufacturing processes, we deliver components that ensure the safety and longevity of your photovoltaic installations, battery storage systems, and DC distribution panels.
The FK6-63DC breaker is engineered to meet the unique challenges of DC circuit interruption, where arc extinction is more complex than in AC systems. Its robust construction and optimized internal mechanism guarantee a swift and safe disconnection under fault conditions, protecting valuable equipment from damage and preventing potential fire hazards. We understand that system reliability is paramount for our global clientele across North America, Southeast Asia, Europe, and beyond, which is why we subject every unit to rigorous testing before it leaves our facility.
Key Product Features & Technical Advantages:
- High DC Voltage Rating: Specifically designed for DC applications with a rated voltage of 1000V DC, making it ideal for solar PV strings and DC busbars.
- Precise Magnetic Trip: Features a highly responsive magnetic trip mechanism for instantaneous short-circuit protection, minimizing the let-through energy.
- Thermal Protection: Incorporates a bimetal strip for reliable overload protection, which trips the breaker based on the thermal effect of overcurrent.
- Compact & Modular Design: Its compact form factor allows for high-density installation on standard DIN rails, saving valuable panel space.
- Easy Installation & Wiring: Equipped with captive screw terminals that provide secure connections and simplify the wiring process.
- Clear Status Indication: Features a clearly visible ON/OFF toggle and trip indicator for quick visual status confirmation.
Detailed Technical Specifications:
| Parameter | Specification |
| Model | FK6-63DC |
| Rated Current (In) | 63A |
| Rated Operational Voltage (Ue) | DC 1000V |
| Number of Poles | 1P, 2P, 3P, 4P (configurable) |
| Breaking Capacity (Icn) | 10kA at DC 1000V |
| Tripping Characteristics | C Curve (Common for general DC applications) |
| Electrical Life | ≥ 10,000 cycles |
| Mechanical Life | ≥ 20,000 cycles |
| Terminal Connection | Screw Terminal |
| Mounting | DIN Rail (35mm) |
| Operating Temperature | -25°C to +70°C |
| Standards | IEC/EN 60898-1, GB 10963.1 |
Benefits for Your Project:
- Enhanced System Safety: Provides dedicated protection for DC circuits, significantly reducing the risk of electrical fires and equipment failure.
- Improved System Uptime: Fast and reliable tripping minimizes downtime by isolating faults before they cause cascading damage.
- Cost-Effective Maintenance: The durable design and long electrical life reduce the frequency and cost of replacements.
- Design Flexibility: Available in multiple pole configurations to suit various DC system topologies and isolation requirements.
- Global Compliance: Manufactured to meet international standards, facilitating easier approval for projects worldwide.
Trust in a product backed by a manufacturer with a proven track record. Jinhua Dika Electrical Equipment Co., Ltd. supports an annual export value of US$1-1.5 Million, serving diverse markets from North America and Western Europe to Southeast Asia and Africa. Our products are shipped globally from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo. The FK6-63DC DC Circuit Breaker embodies our dedication to robust engineering and consistent quality, offering you a dependable protection solution that safeguards your investment. Choose reliability and performance for your critical DC applications.
Frequently Asked Questions (FAQ)
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Q: Can this DC circuit breaker be used for both positive and negative DC poles?
A: Yes, the FK6-63DC is designed to interrupt current flow on either the positive or negative line in a DC system. For full system isolation, you would typically use a 2P breaker to disconnect both poles simultaneously. -
Q: What is the main difference between an AC and a DC circuit breaker like the FK6-63DC?
A: The key difference lies in arc extinction. DC arcs are continuous and harder to extinguish than AC arcs, which naturally cross zero. Our FK6-63DC uses a specific contact and chamber design with magnetic blow-out features to stretch and cool the DC arc effectively for safe interruption. -
Q: Is this breaker suitable for photovoltaic (PV) systems?
A: Absolutely. With its 1000V DC rating and 63A current capacity, it is well-suited for protecting PV string combiners and inverters in solar installations. -
Q: What does the "C Curve" tripping characteristic mean?
A: A C Curve indicates the breaker's trip time under overload. It provides instantaneous magnetic trip between 5 to 10 times the rated current, making it a common choice for general DC applications with moderate inrush currents. -
Q: How do I select the correct pole configuration (1P, 2P, etc.)?
A: The choice depends on your system design. Use a 1P breaker for single-pole protection. Use 2P for isolating both poles of a circuit (common in battery systems). 3P and 4P are used in multi-wire DC systems or for isolating multiple circuits together. -
Q: Are these breakers shipped with any certifications?
A: Our manufacturing process is ISO9001 certified, ensuring consistent quality control. The product is designed to meet IEC/EN 60898-1 standards. Specific regional certifications can be discussed based on your market requirements. -
Q: What is the lead time for an order of these DC breakers?
A: Lead times vary based on order quantity and specific configuration. We maintain stock for common models and can provide accurate timelines upon receipt of your inquiry. -
Q: Can you provide customized labeling or branding on the breaker?
A: Customization options such as private labeling are available for large volume orders. Please contact our sales team to discuss your specific needs.
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