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Help CenterLow-voltage Circuit Breaker FK6-63 Miniature Type C Curve 230V 400V
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As a professional manufacturer with over a decade of experience, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our FK6-63 series Low-voltage Circuit Breaker. Engineered for reliability and safety, this miniature circuit breaker is designed to protect electrical circuits from overloads and short circuits in a wide range of applications. Our commitment to stringent quality control, evidenced by our ISO 9001 certification, ensures every unit delivers consistent performance and peace of mind for our global clientele across North America, Southeast Asia, Europe, and beyond.
This circuit breaker is a critical component for modern electrical safety. Its compact design does not compromise on functionality, offering robust protection for lighting circuits, socket outlets, and general appliance circuits in residential, commercial, and light industrial settings. The C-type tripping characteristic provides a balanced response, making it suitable for circuits with moderate inrush currents, such as those powering small motors, transformers, and household appliances.
Key Features and Technical Advantages:
- Precise and Reliable Protection: The FK6-63 utilizes a thermal-magnetic tripping mechanism. The bimetal strip responds to sustained overloads, while the instantaneous magnetic trip acts within milliseconds to clear dangerous short-circuit faults, effectively preventing wire damage and fire hazards.
- Optimized C Curve Characteristic: With a tripping current between 5 to 10 times the rated current (In), the C curve offers an ideal balance. It withstands the temporary startup surges of common inductive loads without nuisance tripping, yet provides fast disconnection under fault conditions.
- Robust Construction and Safety: Manufactured from high-grade, flame-retardant materials, the breaker housing ensures durability and safety. The clear ON/OFF indication and trip position visibility allow for quick status checks and safer maintenance operations.
- Easy Installation and Compatibility: Designed for standard DIN rail mounting (35mm), the FK6-63 allows for quick, tool-free installation and seamless integration into existing distribution boards, panels, and enclosures, saving valuable time during setup.
- Wide Application Scope: From protecting branch circuits in homes and offices to safeguarding equipment in shops and small workshops, its versatility makes it a go-to solution for electricians and panel builders worldwide.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Product Model | FK6-63 |
| Rated Operational Voltage (Ue) | 230V AC (1P), 400V AC (2P, 3P, 4P) |
| Rated Current (In) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Short-circuit Breaking Capacity (Icn) | 6 kA |
| Tripping Curve | C (5-10 x In) |
| Number of Poles | 1P, 1P+N, 2P, 3P, 3P+N, 4P |
| Electrical Life | ≥ 10,000 cycles |
| Mechanical Life | ≥ 20,000 cycles |
| Mounting | DIN Rail (35mm x 7.5mm) |
| Standards Compliance | IEC/EN 60898-1, GB 10963.1 |
Benefits for Your Business: Choosing Dika's FK6-63 MCB means investing in a component that enhances the safety and reliability of your electrical projects. Its consistent performance reduces the risk of costly downtime and equipment damage. The wide current rating selection allows for precise circuit matching, optimizing protection. Furthermore, its global standard compliance facilitates its use in international projects, supported by our efficient logistics from major Chinese ports like Shanghai, Tianjin, and Ningbo.
Backed by Jinhua Dika's manufacturing expertise and a portfolio of management system certifications including ISO 9001 and ISO 14000, the FK6-63 is more than just a component—it's a promise of quality. Our annual export value of US$1-1.5 million to diverse markets from North America to Africa is a testament to the trust we've built. We invite you to experience the Dika difference. Contact us today to discuss your requirements, request samples, or place an order for a reliable supply of high-performance circuit protection devices.
Frequently Asked Questions (FAQ)
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Q: What is the main difference between a C curve and other curves like B or D?
A: The tripping curve defines the breaker's response time to overloads. A C curve (5-10x In) is for general use with moderate inrush currents (e.g., lighting, sockets, small motors). B curve (3-5x In) is for purely resistive loads with low surge. D curve (10-20x In) is for circuits with very high inrush currents, like large transformers or welding equipment. -
Q: Can this FK6-63 breaker be used as a main switch or isolator?
A: While it has a manual ON/OFF switch, it is primarily a protective device, not a dedicated load-break isolator. For isolation purposes where frequent switching under load is required, a dedicated switch-disconnector is recommended. -
Q: Is the 6kA breaking capacity sufficient for residential applications?
A: Yes, a 6kA breaking capacity is typically more than adequate for final sub-circuits in residential and many commercial buildings, where the available fault current is usually within this range. For main distribution boards closer to the transformer, higher capacity breakers may be needed. -
Q: How do I select the correct rated current (In) for my application?
A: The breaker's rated current should be equal to or slightly higher than the calculated maximum continuous load current of the circuit it protects, but must not exceed the current-carrying capacity of the wiring. For example, a circuit with 15A load would typically use a 16A or 20A breaker. -
Q: Are these breakers suitable for DC circuits?
A: The FK6-63 is designed and tested for AC circuits as per IEC 60898-1. Using it on DC circuits is not recommended unless specifically stated and certified by the manufacturer, as DC arc extinction poses different challenges. -
Q: What is the typical lead time for an order?
A: Lead times vary based on order quantity and specific model requirements. For standard configurations, we often have stock available for prompt shipment from our ports. Customized orders or large volumes may require a production schedule, which our sales team can provide upon inquiry. -
Q: Do you provide technical support or datasheets?
A: Absolutely. We provide comprehensive technical datasheets, installation guides, and certificates of compliance. Our technical team is also available to assist with product selection and application questions to ensure correct usage. -
Q: Can I get samples before placing a bulk order?
A: Yes, sample orders are available for quality verification. Please contact our sales department to arrange sample availability, costs, and shipping. This allows you to test the product's fit and function in your specific application.
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