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Help CenterLow-voltage Circuit Breaker FK80-125DC 1P 2P 3P 4P C-type 125A Thermal Magnetic
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As a dedicated manufacturer with over a decade of experience in electrical protection solutions, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents the FK80-125DC Low-voltage Circuit Breaker. Engineered for reliability and safety, this thermal magnetic circuit breaker is designed to provide robust overcurrent and short-circuit protection in a wide range of electrical installations. Our commitment to a structured quality management system, reflected in our operational certifications, ensures that every FK80-125DC unit delivers consistent performance and peace of mind for our global clientele across North America, Southeast Asia, Europe, and beyond.
The core value of the FK80-125DC lies in its ability to safeguard electrical circuits efficiently. By integrating both thermal and magnetic tripping mechanisms, it responds accurately to both sustained overloads and sudden high-current faults, preventing potential damage to wiring and connected equipment. This makes it an indispensable component for panel builders, electrical contractors, and facility managers seeking a dependable and versatile protection device.
Detailed Features and Technical Specifications:
- Dual Protection Mechanism: Combines a bi-metal strip for thermal overload protection (responding to sustained overcurrents) with an electromagnetic solenoid for instantaneous magnetic short-circuit protection.
- Versatile Pole Options: Available in 1P, 2P, 3P, and 4P configurations, offering flexibility for protecting single-phase and multi-phase circuits as per project requirements.
- C-Type Tripping Characteristic: The "C" curve is optimized for circuits with moderate inrush currents, such as those feeding lighting, control circuits, and general socket outlets. It typically trips between 5 to 10 times the rated current, offering a balanced response.
- High Current Rating: With a 125A rating, it is suitable for protecting main feeder lines, sub-distribution boards, and higher-capacity branch circuits in commercial and light industrial environments.
- DIN Rail Compatibility: Designed for easy and secure mounting on standard 35mm DIN rails, simplifying installation and panel assembly.
- Clear Status Indication: Features a visible ON/OFF toggle switch and a trip indicator (where applicable) for quick operational status assessment.
- Robust Construction: Manufactured with high-quality, flame-retardant materials and precision-engineered internal components for durability and long service life.
Technical Parameters Table:
| Parameter | Specification |
| Model | FK80-125DC |
| Rated Current (In) | 125 A |
| Pole Configurations | 1P, 2P, 3P, 4P |
| Tripping Curve | C-Type |
| Rated Operational Voltage (Ue) | Customizable (e.g., 230/400V AC) |
| Breaking Capacity (Icn) | Available upon request (e.g., 10kA, 15kA) |
| Mounting | 35mm DIN Rail |
| Electrical Life | High number of operations |
Benefits for Our Clients:
- Enhanced System Safety: Significantly reduces the risk of electrical fires and equipment damage by reliably disconnecting faulty circuits.
- Operational Continuity: Protects valuable assets and minimizes downtime caused by electrical faults.
- Design Flexibility: Multiple pole options allow engineers to tailor protection schemes precisely for various electrical layouts.
- Global Compliance Readiness: While specific certifications are customizable, our manufacturing processes are geared towards meeting international safety and quality benchmarks, facilitating projects in diverse markets.
- Cost-Effective Protection: Offers a reliable protection solution that can help avoid costly repairs and replacements of damaged wiring and appliances.
Trust in a product backed by a manufacturer with a proven track record. Jinhua Dika Electrical Equipment Co., Ltd. supports an annual export value in the range of US$1-1.5 Million, serving clients across more than a dozen major global markets from North America to Oceania. Our dedicated team of 11-50 professionals operates from a facility in China's industrial hub of Zhejiang, ensuring efficient production and logistics. We offer flexible shipping from major ports including Shanghai, Tianjin, Guangzhou, and Ningbo. The FK80-125DC circuit breaker embodies our commitment to delivering electrical components that are not only functional but also built with the reliability demanded by professional applications worldwide. For detailed specifications, certification options, or to discuss your bulk requirements, contact us today to experience the Dika difference in circuit protection.
Frequently Asked Questions (FAQ)
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Q: What is the main application for a C-type curve breaker like the FK80-125DC?
A: The C-type curve is commonly used for protecting circuits with moderate inrush currents, such as lighting systems, control circuits, and general-purpose socket outlets in residential and commercial buildings. -
Q: Can I use a single 125A breaker for a three-phase motor?
A: For a three-phase motor, you would typically use a 3P breaker (like the FK80-125DC 3P) to protect all three phases simultaneously. Using individual single-pole breakers is not recommended for multi-phase equipment protection. -
Q: What is the difference between thermal and magnetic tripping in this breaker?
A: The thermal tripping element responds to sustained overloads (e.g., 1.13 to 1.45 times In) over a period of time, using a bi-metal strip that bends with heat. The magnetic element reacts instantly to high-magnitude short-circuit currents (e.g., 5-10 times In for C-type), using an electromagnet to trip the mechanism. -
Q: Is the FK80-125DC suitable for DC circuits?
A: The standard model is primarily designed for AC applications. Its suitability for DC circuits depends on the voltage and breaking capacity requirements. Please consult with our technical team for specific DC application needs. -
Q: How do I know which breaking capacity (Icn) I need for my project?
A: The required breaking capacity depends on the prospective short-circuit current at the installation point, which is determined by your transformer size and cable impedance. An electrical engineer or designer typically calculates this. We offer various breaking capacities; please provide your system details for a recommendation. -
Q: Are these breakers compatible with enclosures and rails from other brands?
A: Yes, the FK80-125DC is designed for standard 35mm DIN rail mounting, which is universally used in electrical panels. It should be mechanically compatible with enclosures and rails from major manufacturers. -
Q: Do you provide specific certifications like CE or UL for this product?
A: As a manufacturer, we have experience with various quality management systems. Specific end-product certifications like CE, UL, or others can be arranged based on your market requirements and order volume. Please inquire for details. -
Q: What is the typical lead time for an order of FK80-125DC breakers?
A: Lead times vary based on order quantity, configuration (pole type), and any custom certification requirements. With our efficient manufacturing and multiple shipping port options (Shanghai, Ningbo, etc.), we strive to offer competitive lead times. Contact our sales team for a precise quote.
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