Description
GFEVF/300 High Speed Semiconductor Fuse: 35A-2500A 250V/300V Professional Circuit Protection Solution
Product Overview
The GFEVF/300 high speed semiconductor fuse is a high-performance overcurrent and short-circuit protection component specially designed for high-power electrical systems, featuring a dual rated voltage of 250V/300V and an ultra-wide current range covering 35A to 2500A. Adopting advanced aR semiconductor partial-range protection technology, this fuse delivers millisecond-level ultra-fast fusing speed, exceptional current-limiting performance and high breaking capacity, providing reliable protection for sensitive power semiconductor devices and high-current circuits against damage caused by fault currents.
Constructed with a high-strength heat-resistant ceramic body, 99.99% pure silver melt element and high-purity quartz sand arc-extinguishing filling material, the GFEVF/300 fuse boasts outstanding insulation, flame retardancy and anti-vibration properties. It fully complies with international standards including IEC 60269-1/4, UL 248-13, RoHS and REACH, making it a top-tier protection solution for industrial power electronics, new energy equipment, automotive power systems and other high-demand scenarios.
Core Technical Parameters
| Parameter | Specification Details |
|---|---|
| Model | GFEVF/300 |
| Rated Voltage | 250V AC/DC, 300V AC/DC |
| Rated Current Range | 35A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 350A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A |
| Protection Class | aR (Semiconductor Partial-Range Fast Protection) |
| Breaking Capacity | Max 50kA @250V/300V |
| Fusing Response Time | ≤2ms (millisecond-level ultra-fast) |
| Operating Temperature | -40℃ to 125℃ (wide temperature adaptation) |
| Melt Material | 99.99% High-Purity Silver |
| Body Material | High-Strength Heat-Resistant Ceramic |
| Installation Method | Bolt-On Fixed (stable & anti-vibration) |
| Compliance Standards | IEC 60269-1, IEC 60269-4, UL 248-13, RoHS, REACH |
Key Performance Features
1. Ultra-Fast Fusing & Precision Current Limiting
The GFEVF/300 adopts a precision variable-cross-section pure silver melt design, with an extremely low I²t value that enables millisecond-level fusing response. It can quickly limit the peak of fault current before it impacts IGBTs, MOSFETs, diodes, thyristors and other sensitive semiconductor components, effectively avoiding irreversible damage to core equipment and reducing maintenance costs for industrial and new energy systems.
2. Ultra-Wide Current & Dual Voltage Compatibility
With a current range spanning 35A to 2500A, this fuse meets the protection needs of both low-power control circuits and high-power main circuits. The dual 250V/300V voltage design adapts to diverse low-voltage high-power system requirements, eliminating the need for separate fuses for different voltage scenarios and simplifying model selection for engineers and purchasers.
3. High Breaking Capacity & Safe Operation
Featuring a maximum breaking capacity of 50kA under 250V/300V voltage, the GFEVF/300 can safely and completely disconnect large short-circuit currents without arc leakage, explosion or fire risks. The ceramic body and quartz sand filling structure efficiently extinguish electric arcs, ensuring the safety of the entire circuit system even under extreme fault conditions, meeting strict safety standards for industrial and automotive applications.
4. Extreme Environmental Adaptability
This fuse is engineered to operate stably in a wide temperature range from -40℃ to 125℃, with strong resistance to mechanical vibration, shock, temperature impact and current fluctuations. It performs reliably in harsh working environments such as industrial workshops, automotive cabins and outdoor energy storage stations, maintaining stable performance without attenuation during long-term use.
5. Low Power Loss & Long Service Life
The high-purity silver melt and silver-plated copper alloy end bells minimize contact resistance, resulting in extremely low power loss during normal operation. This design reduces heat generation, improves energy utilization efficiency of the entire circuit, and extends the service life of both the fuse and surrounding components, making it a cost-effective protection choice for long-running equipment.
Main Application Scenarios
- Industrial Power Electronics: Overcurrent protection for frequency converters, inverters, rectifiers, welding equipment, UPS power supplies and high-power industrial power supplies;
- New Energy Vehicles: Circuit protection for automotive battery packs, battery management systems (BMS), on-board chargers, inverters and high-voltage distribution boxes;
- Energy Storage Systems: Short-circuit protection for photovoltaic energy storage modules, wind power energy storage devices, large-scale energy storage stations and power conversion systems;
- Electrical Equipment: Protection for power distribution cabinets, generator sets, electrolytic equipment and other high-current low-voltage electrical systems;
- Rail Transit & Marine: Circuit protection for rail transit vehicle electrical systems and marine low-voltage high-power equipment.
Advantages Over Ordinary Fuses
Unlike conventional low-speed fuses, the GFEVF/300 high speed semiconductor fuse is specially designed for semiconductor device and high-current system protection. Ordinary fuses have slow fusing speed, low breaking capacity and poor current-limiting effect, which cannot protect sensitive electronic components. In contrast, the GFEVF/300 offers ultra-fast fusing, ultra-wide current coverage and high environmental adaptability, with performance far exceeding ordinary fuses in high-power and high-sensitivity scenarios.
Installation & Maintenance Notes
- Install the fuse according to the specified torque to ensure tight electrical contact and avoid overheating caused by loose connections;
- Strictly prohibit installing, disassembling or replacing the fuse with load to prevent electric shock and short-circuit accidents;
- Replace blown fuses only with the same model, current and voltage specification of GFEVF/300 fuse, and do not mix different specifications;
- Regularly inspect the fuse for cracks, deformation or discoloration; replace damaged fuses immediately to ensure system safety;
- For applications at altitudes above 4500m, perform current derating use and consult technical personnel for parameter confirmation.
Conclusion
The GFEVF/300 35A-2500A 250V/300V high speed semiconductor fuse is a high-reliability, high-performance circuit protection component tailored for high-power and high-sensitivity electrical systems. With ultra-fast fusing speed, ultra-wide current range, dual voltage compatibility and strict international certifications, it provides comprehensive and stable protection for industrial electronics, new energy vehicles, energy storage and other core fields. It is the preferred choice for equipment manufacturers, engineering designers and maintenance teams seeking efficient high-current circuit protection solutions.
GFEVF/300 35A-2500A 250V/300V High Speed Semiconductor Fuse
1. Overview
GFEFUSE Auto Fuse, DC Fuse Holder, Auto Fuse Holder, Fuse, Panel Fuse Holder, PCB Fuse Holder, Blade Fuse Holder, Photovoltaic Fuse, EV Fuse, Fast Fuse and other accessories here one-stop solution
2. Product Application
This series of electric vehicle DC fuses are used for rated voltage DC/AC 250V~300V, rated current 35~2500A, fuse capacity 20kA~50kA, suitable for electric vehicle batteries, battery capacity increase, DC power supply, products comply with GB/T31465.1-2015 and GB/T31465.6-2017 standards.
3. About Manufacturer
Dongguan Gongfu Electronics Co., Ltd. is a circuit protection component development, manufacturing, supply as one, specializing in the production of fuses (fuses) automotive plug-in fuses, automotive plug-in fuse holders, fork bolt automotive fuses, automotive fuse boxes. Automotive fuses, fork bolt automotive fuse holders, fuse holders, automotive fuse holders, provide safe and reliable circuit protection and comprehensive services for your products. With the vigorous development of electronic products, our company continues to develop new products to meet the needs of electronic products.
4. Description
- Design For Dc Applications
- Excellent Dc Performance
- Low arc voltage and low energy let-through (I²t)
- Superior cycling capability
- Low Watt Losses
5. Standards / Approvals
- Refer To UL248.13 or IEC60269.4
- RoHS Compliant
6. Features & Benefits
- Higher voltage rating provides overall system efficiency using smaller, more economical conductors while meeting the needs of higher voltage.
- Up to ten times faster opening under high fault current conditions helps assure reliable protection of circuits and components.
- Can be applied in parallel to realize greater ampacity within sizing guidelines.
- Excellent power of resisting voltaic impingement and environmental temperature tolerance.
- Excellent resistance to mechanical vibration and impact resistance.