We have a professional team specialized in protection device design and manufacturing.
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Client Satisfaction
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Industry Expertise
We hold decades of experience in circuit protection solutions for diverse fields.
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Our Products
We continue to improve our technology and market competitiveness. We will continue to introduce technology, take quality as the foundation, take customer demand as the guide, improve the performance and quality of products, continue to meet customer needs, and provide customers with one-stop solutions for protection devices
ABOUT
Company Profile
20+
Expert Personnel
100+
Certifications
GFEFUSE® has always been committed to continuous innovation, integrating design, development, production, and sales of electrical protection devices.
Product type and R & D Application
We constantly develop diverse products to meet market needs, covering a wide range of application fields from new energy to consumer electronics.
Industry Reach
We actively expand our influence, providing reliable solutions across various industries from automotive electronics to telecommunications.
DONGGUAN GONGFU ELECTRONICS
Application
Our circuit protection devices are widely applied in diverse sectors, safeguarding critical systems and equipment.
New energy vehicles
Used to protect high - voltage circuits and battery management systems, ensuring vehicle safety and reliability.
Battery charging piles
Crucial for preventing over - current and short - circuit faults, enhancing the stability of charging operations.
Energy storage
Essential for protecting energy storage systems from electrical risks, optimizing system performance.
Power supplies
Integrated into power supply units to prevent overloads and voltage surges, ensuring stable power output.
our certificate
Honor
INDUSTRY ACHIEVEMENTS
CERTIFICATIONS
2024
In 2024, it will be awarded the preferred member unit of the fuse industry and the top 10 brands of China's fuse industry
2021
In 2021, the new energy photovoltaic fuse obtained TUV mark (Europe) safety certification.
2019
In 2019, it won the top 10 brands and products in the fuse industry, and obtained UL (United States) cULus (Canada) safety certification
2018
In 2018, the product obtained CQC (China) TUV mar (Europe) safety certification, CE (Europe) product certification and ROHS REACH EU directive report
our news
News
We continue to improve our technology and market competitiveness. We will continue to introduce technology, take quality as the foundation, and be customer-oriented to improve product performance and quality, continuously meet customer needs, and provide customers with one-stop solutions for protection devices.
The graphic symbol (as shown below) and the text symbol of the fuse are: FU
A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the heat generated by itself causes the fuse to heat up, thereby disconnecting the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, it is one of the most commonly used protection devices.
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The European TuV. CE and CQC certifications have been updated to the new version
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Automotive DC fuse and fuse accessories service provider
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Dongguan Gongfu Electronics Co., LTD. announces pre-orders for multiple products:
H10F fuse (50A-750VAC/32A-1000VDC) with panel-installation fuse holders.
GFC41F automotive fuse holder (40A/58V, ultra-small size) available for pre-order from late September.
High/low voltage DC fast fuses (125V-1500V, 10A-500A, 20KA gR type), including 2H38L (200A-500A/250V-300V, 10KA) and 1H20L (70A-300A/125V-150V, 20KA), now open for reservations.
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Gongfu Electronics announces the upcoming launch of its H105F fast fuse series (1A-6A, 1500V DC, 20KA/50KA AC). Specialized in developing and manufacturing circuit protection components—including automotive blade fuses, holders, fork bolt fuses, fuse boxes, and high-voltage DC fuses—the company delivers safe, reliable protection and comprehensive solutions for clients' products.
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Ask most buyers what they need from a semiconductor fuse and the answer comes back as two numbers: rated current and rated voltage. Both matter, but neither is the number that decides whether an IGBT survives a fault. That number is I2t — the energy let through by the device before it clears, expressed in ampere-squared seconds.
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There is a pattern in solar O and M that every experienced technician recognises. An array runs perfectly for two or three years, then one summer a handful of protective devices start opening, or a combiner box inspection finds discoloured bodies with no fault anywhere in the system.
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A blade fuse that opens once is doing its job. The same one opening every few weeks, always in the same position, is telling you that the circuit has a problem nobody has found yet. Replacing it fixes nothing, and fitting a higher rating — the most common response — turns a nuisance into a wiring fire risk.
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It looks impossible. The protective device is the part designed to sacrifice itself, yet in a melted holder the device sits there intact while the plastic around it has deformed. If the current was high enough to destroy the holder, why was it not high enough to open the device?
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The most common specification error we see is not the current rating. It is someone matching the voltage rating of a DC fuse to the nominal system voltage and calling it done. On AC, that habit is mostly harmless. On DC, it is the difference between a device that clears and a device that becomes a heater.
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Outdoor DC enclosures fail from the environment far more often than they fail electrically. Water finds a cable gland that was never properly seated. Ultraviolet radiation chalks a holder body until it cracks. Condensation forms inside a sealed box every night for a year and quietly corrodes every terminal in it.
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Wiring a DC fuse holder looks like the simplest job on the panel: two terminals, two cables, tighten and go. It is also where a surprising number of commissioning problems originate, because in DC the questions that matter — which side is the supply, which side is the load, and what the manufacturer's marking actually means — have consequences that do not exist on the AC side.
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A bolt down fuse is one of the few protective devices whose performance depends on how well somebody with a spanner did their job. The same device, in the same circuit, can run cool for fifteen years or cook itself in eighteen months, and the difference is usually nothing more than the torque on two nuts and the condition of the surfaces underneath them.
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Sizing an energy storage fuse for a 1500 V battery rack looks like a five-minute job until you read the fault current. A lithium rack does not ramp up to its short-circuit value the way a generator does — the current is available the instant a contactor welds or a cable gets crushed during service.
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Every blade type fuse carries two independent statements of its rating: the colour of the plastic body and the number moulded into the top. They should agree. When they do not, or when one of them is missing or faded, people guess — and guessing is how a 10 A circuit ends up protected at 30 A.
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The time-current curve is the most useful sheet of paper in a high speed fuse datasheet, and the one most often skipped. Buyers look at rated current, glance at voltage, and move on. Then a drive trips, a diode fails, and nobody can explain why a device that was supposed to be fast took several milliseconds to clear.
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On a low-voltage control board, the placement of a PCB mount fuse holder is mostly a question of convenience: put it near the power input, keep the traces short, done. On a board that carries mains or high-voltage DC, placement becomes a safety decision, and the distance between two pieces of copper matters more than the routing elegance.
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Solar protection is selected from two numbers printed on the module label, and those two numbers are almost always the wrong ones to start from. Installers reach for the nameplate power or the maximum power current, and the resulting PV fuse is either undersized and nuisance-blowing on the first hot week, or oversized and doing nothing when a string fault actually occurs.
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In a vehicle or any mobile equipment, a blade fuse holder is subject to continuous mechanical input for its entire service life. Engine vibration, road input, and harness movement all arrive at a contact that depends on spring force to do its job.
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There are two ways to get vehicle high-voltage protection wrong. The first is a fuse that opens on a transient the contactor should have handled, leaving a driver stranded for a part that costs very little. The second is a contactor that tries to interrupt current beyond its capability, welds closed, and turns a manageable fault into a serious one.
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In the rapidly evolving landscape of renewable energy and electric mobility, the demand for robust circuit protection has never been higher. Identifying a competent industrial dc fuse holder supplier is a critical step for engineers and procurement specialists who are tasked with ensuring the safety and longevity of high-power systems.
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A comprehensive technical guide on choosing the right circuit protection for modern energy storage systems and power conversion units.
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Comprehensive guide to selecting a high-performance oem dc fuse holder supplier for modern renewable energy and industrial applications.
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A comprehensive technical guide for photovoltaic system integrators and brands seeking professional circuit protection solutions through strategic OEM partnerships.
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In the complex landscape of modern electronics manufacturing, selecting the right components is not merely a matter of technical compatibility but a cornerstone of long-term product reliability. Among these critical components, the fuse holder serves as a primary line of defense.
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A comprehensive guide to sourcing reliable circuit protection for modern battery energy storage systems.
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Comprehensive technical analysis and strategic selection criteria for modern Energy Storage Systems (ESS) protection.
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A comprehensive guide to identifying the right technical partner for high-voltage circuit protection in modern energy storage systems.
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A comprehensive technical overview for procurement specialists and engineers in the automotive industry.
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A comprehensive guide to sourcing high-performance circuit protection for modern photovoltaic systems.
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