
DC Car Fuse
This 2H38L Series DC automobile fuse is suitable for rated DC voltage below 250V (300V), in rated current 200A-500A line, breaking capacity of 10Ka, widely used in charger, power supply, vehicle-mounted battery, vehicle-mounted circuit system, inverter integrated protection.
DC car fuses play an important role in ensuring the safety of electrical systems in vehicles. Designed to prevent damage to sensitive electronic components and prevent electrical fires, these fuses are an essential component in any car's electrical system. As a manufacturer of high-quality DC car fuses, we are proud to offer a range of products to meet the needs of merchants around the world.
Our DC car fuses are designed to meet the highest standards of safety and reliability. We use only the finest quality materials and state-of-the-art manufacturing techniques to make sure that every product we produce meets or exceeds industry standards. Whether you are looking for a simple blade fuse or a more complex circuit breaker, we have the expertise and experience to deliver exactly what you need.
One of the key benefits of our DC car fuses is their superior performance in harsh environments. Many car owners operate their vehicles in extreme conditions, such as high temperatures, high humidity, and dusty environments. Our fuses have been designed to operate reliably in these conditions, ensuring that your customer's electrical systems continue to function correctly even under the toughest conditions.
Another key advantage of our DC car fuses is their versatility. We offer a wide range of products to suit a variety of different applications, from low voltage systems to high voltage systems. Whether you are looking for a simple blade fuse to protect a small electrical circuit or a more complex circuit breaker to protect a large electrical system, we have the products you need to get the job done right.
At the same time, our DC car fuses are also incredibly easy to use. They are designed to be easy to install and replace, with clear markings that indicate their rating and function. This makes them an ideal choice for merchants who are looking for a reliable, hassle-free product that their customers can easily understand and use.
Our commitment to quality and excellence is reflected in every aspect of our products and services. From the design and manufacture of our fuses to our customer service and support, we are dedicated to providing the best possible experience for our customers. We work closely with our merchants to understand their needs and provide them with the products and services they need to succeed.
In short, our DC car fuses are an essential component for any vehicle's electrical system. They are reliable, durable, and easy to use, making them an ideal choice for merchants who are looking for a high-quality product that their customers can rely on. So why not contact us today to learn more about our products and services, and see how we can help you build a successful business?
1. Introduction
This 2H38L Series DC automobile fuse is suitable for rated DC voltage below 250V (300V), in rated current 200A-500A line, breaking capacity of 10Ka, widely used in charger, power supply, vehicle-mounted battery, vehicle-mounted circuit system, inverter integrated protection. At the same time, it has the characteristics of strong current limiting capacity, large breaking capacity, fast short circuit breaking speed and so on.
2. Normal working conditions
Normal operating conditions of ambient air temperature: - 5 ℃ ~ 40 ℃; allowable operating conditions: - 40 ℃ ~ + 125 ℃;
3. Use category
Full range fast fuse(gR)
4. Structural characteristics
Our DC car fuse can withstand temperature shock, mechanical shock, current shock, chemical load, etc. This series of products comply with ISO 8820, JASO D622 and GB/T31465 standards. Applicable standards :GB/T31465.6, ISO 8820-8, JASO D622, UL248-20.
The melting tube of the product is made of high-temperature resistant ceramic material, with high flame-retardant performance and strong hardness.
The melt is sealed in the melting tube with a variable cross-section melt made of 99.99% pure silver. The melting tube is filled with chemically treated high-purity quartz sand and specially treated chemical materials as arc extinguishing medium. The contact surface is silver plated to ensure reliable electrical performance, greatly reducing temperature rise and power consumption; Both ends of the melt are firmly connected with the contact by spot welding, which greatly enhances the safety and reliability of breaking short circuit fault current.
5. Agreed current and agreed time
Test current | Fusing time s | |
In:≥60A | ||
min | max | |
1.1In | 14400 | - |
1.35In | 150 | 3600 |
1.5In | 20 | 1500 |
2In | 1 | 300 |
3In | 0.2 | 30 |
5In | 0.05 | 1 |
Note: the agreed current and agreed time required by the customer can be negotiated with our company.
The characteristics of fuse will vary according to the use environment and surrounding design requirements. The performance characteristics are obtained according to the rated constant temperature of 25 ℃
6. Main parameters
NO: | Product model | Rated current | Rated voltage DC | Maximum voltage drop | Breaking Capacity |
1 | 2H38L200 | 200 | 300V/250V | 180 | 10 |
2 | 2H38L250 | 250 | 300V/250V | 180 | 10 |
3 | 2H38L300 | 300 | 300V/250V | 160 | 10 |
4 | 2H38L350 | 350 | 300V/250V | 160 | 10 |
5 | 2H38L400 | 400 | 300V/250V | 160 | 10 |
6 | 2H38L450 | 450 | 300V/250V | 150 | 10 |
7 | 2H38L500 | 500 | 300V/250V | 150 | 10 |
7. Product scale


8. Characteristic curve

9. About Us

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