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Help CenterFK6-63DC DC Miniature Circuit Breaker 1P 2P 3P 4P for 500V DC Systems
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As a dedicated manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing reliable and high-performance electrical protection solutions. Our FK6-63DC DC Miniature Circuit Breaker is engineered to meet the rigorous demands of modern 500V DC systems, offering superior safety and operational stability. With a focus on precision manufacturing and stringent quality control, we deliver products that ensure the longevity and reliability of your critical electrical infrastructure. This circuit breaker is a testament to our commitment to innovation and customer satisfaction in the global market.
The FK6-63DC series is designed for efficient protection against overload and short-circuit faults in direct current applications. Its compact design allows for optimal space utilization in control panels and distribution boards.
- Advanced Protection Mechanism: Features a quick-make, quick-break contact system that ensures rapid interruption of fault currents, minimizing damage to connected equipment.
- Versatile Pole Configurations: Available in 1P, 2P, 3P, and 4P versions, providing flexibility for various circuit protection requirements in DC systems.
- Robust Construction: Manufactured from high-grade, flame-retardant materials with excellent insulating properties, ensuring durability and safety in diverse environments.
- User-Friendly Design: Equipped with a clear ON/OFF indication and a convenient toggle switch for easy manual operation and status monitoring.
- Wide Application Range: Suitable for photovoltaic (PV) systems, battery banks, DC power supplies, electric vehicle charging stations, and telecommunications infrastructure.
- Enhanced Thermal Performance: The bimetal tripping mechanism provides reliable overload protection with stable performance across the specified temperature range.
Below is a summary of key technical specifications for the FK6-63DC series:
| Parameter | Specification |
|---|---|
| Rated Operational Voltage (Ue) | 500V DC |
| Rated Current (In) | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Pole Configurations | 1P, 2P, 3P, 4P |
| Rated Insulation Voltage (Ui) | 800V |
| Impulse Withstand Voltage (Uimp) | 6kV |
| Electrical Life | >10,000 cycles |
| Mechanical Life | >20,000 cycles |
| Mounting | Standard 35mm DIN Rail |
| Terminal Connection | Screw Clamp, suitable for cables up to 25mm² |
The primary advantage of the FK6-63DC lies in its dedicated design for DC systems, which often have different arc quenching requirements compared to AC. This results in enhanced safety and reliability for your equipment. Clients benefit from reduced downtime, lower maintenance costs, and improved system integrity. Its compliance with international electrical standards ensures compatibility and trust in global projects.
Backed by Jinhua Dika's robust manufacturing capabilities and a portfolio of quality management certifications, the FK6-63DC DC Miniature Circuit Breaker represents a reliable choice for professionals worldwide. Our annual export value and presence in diverse markets, from North America to Southeast Asia, underscore our proven track record in delivering consistent quality. We encourage you to choose this circuit breaker for your next project to experience the perfect blend of safety, durability, and performance. Contact us today to discuss your specific requirements or to request a sample.
Frequently Asked Questions (FAQ)
-
Q: What is the main difference between an AC and a DC miniature circuit breaker?
A: DC circuit breakers, like the FK6-63DC, are specifically designed to interrupt direct current. The main challenge with DC is that the arc does not naturally extinguish at a zero crossing like in AC. Therefore, DC breakers have special arc chutes and magnetic blow-out techniques to safely and effectively quench the DC arc. -
Q: Can the FK6-63DC be used in solar PV systems?
A: Yes, it is highly suitable for photovoltaic applications. It is designed to handle the 500V DC voltage commonly found in PV arrays and provides reliable protection for solar combiner boxes and inverters against overloads and short circuits. -
Q: How do I select the correct rated current (In) for my application?
A: The rated current should be selected based on the continuous load current of the circuit you are protecting. It is generally recommended to choose a breaker with a rating slightly higher than the normal operating current to avoid nuisance tripping, but it must be lower than the cable's current-carrying capacity. -
Q: Is this breaker suitable for both indoor and outdoor installations?
A: The standard FK6-63DC is designed for indoor use within its specified operating temperature range (-25°C to +70°C). For outdoor installations, it should be housed in a suitable enclosure rated for outdoor conditions to protect it from direct sunlight, rain, and excessive dust. -
Q: What is the breaking capacity of this MCB?
A: The FK6-63DC offers a high breaking capacity suitable for most commercial and industrial DC applications. The exact value for different current ratings is available upon request, as it is tested according to relevant standards. -
Q: Are auxiliary contacts or shunt trips available for this model?
A: Auxiliary contacts and other accessories like shunt trip devices may be available as optional add-ons. Please contact our sales team with your specific configuration needs for confirmation and availability. -
Q: What standards does this product comply with?
A: The FK6-63DC is designed and tested in accordance with international standards such as IEC/EN 60898-1 and IEC/EN 60947-2 for circuit-breakers, ensuring global acceptance and safety. -
Q: What is the lead time for an order?
A: Lead times vary based on order quantity, specific configuration (current rating, poles), and stock availability. Generally, standard items can be shipped promptly from our major ports like Shanghai or Ningbo. We provide accurate lead time estimates upon order confirmation.
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