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A semiconductor fuse is a specialized type of electrical fuse designed to protect sensitive semiconductor devices from overcurrent conditions. With its fast response time and high breaking capacity, the semiconductor fuse can promptly disconnect the circuit when the current exceeds safe limits, commonly used in industrial electrical systems, energy storage devices, telecommunications equipment, and various high-end electronic products.
GRL semiconductor fuse links are made from high-conductivity copper, providing excellent current-carrying capacity. featuring a cutting capacity of up to 100kA for short circuit conditions， the fuse links can handle rated currents from 5A to 1250A and are compatible with voltages up to 1250V AC， ensuring maximum protection even in high-voltage environments.
Please refer to the product catalog PDF for more specifications. Customization is available upon request.
Instantly interrupts circuits to protect equipment and people.
Available in various specifications for all circuit types.
Reliable performance for long-lasting protection.
Quick to install and simple to maintain.
At GRL, our fuse manufacturing is built on a philosophy of “high standards and strict requirements.” From the meticulous selection of raw materials to the final product leaving our facility, every step is rigorously controlled to ensure each item is worthy of your trust.
Precision Manufacturing & Automated Production Lines:
We’ve integrated globally leading automated production equipment and precision molds. This has enabled high-level automation for core processes like melt assembly, welding, and encapsulation. This not only significantly boosts production efficiency but also ensures every GRL fuse has exceptionally consistent dimensions, resistance, and performance, minimizing human error.
Rigorous and Comprehensive Performance Testing:
Before any GRL fuse leaves our factory, it must pass a series of tests that are even stricter than industry standards. These include voltage withstand tests, temperature rise tests, breaking capacity verification, and load cycle tests. We simulate various extreme application scenarios to ensure our products can reliably and instantly interrupt a circuit under overload and short-circuit faults, providing solid safety protection for your equipment.
Superior Core Materials:
GRL insists on using high-purity electrolytic silver or copper for the core melt. This guarantees a fast and precise response during a fault. Additionally, we use high-performance flame-retardant insulating materials and high-quality ceramic tubes to effectively contain the arc and ensure the product maintains excellent insulation and mechanical strength even at high temperatures.
A semiconductor fuse link is a protective device designed to safeguard semiconductor components from overcurrent or short circuits. It works by quickly disconnecting the circuit when the current exceeds a safe limit, preventing damage to sensitive electronic parts. These fuses have fast response times and high breaking capacity, making them ideal for protecting power semiconductors in applications like power supplies, motor drives, and industrial electronics.
Semiconductor fuse links are widely used in various fields such as industrial electrical systems, energy storage systems, telecommunications equipment, and high-end electronics. They are particularly effective in applications where high reliability and quick response times are essential.
To select the appropriate semiconductor fuse link, you should consider the voltage and current ratings of your system, as well as the potential fault current levels. Our technical support team can help you choose the right fuse link based on your specific requirements.
Yes, we offer customization options for semiconductor fuse links, including variations in current ratings, voltage ratings, and other technical specifications to meet your specific application requirements. Contact our sales team for more details on customization.
To check a semiconductor fuse, you can follow these steps:
Visual inspection: Look for signs of physical damage, such as burn marks or cracks. A blown semiconductor fuse may also show discoloration.
Continuity test: Use a multimeter to check the continuity of the fuse. Set the multimeter to the continuity setting (or resistance mode), and place the probes on each end of the fuse. If the multimeter beeps or shows a low resistance value, the fuse is intact. If there is no sound or the resistance is high, the fuse is blown.
Yes, you can test a fuse with a multimeter by performing a continuity test. To do this:
Set the multimeter to the continuity mode (often marked with a sound wave symbol) or resistance mode.
Touch one probe to each end of the fuse.
If the fuse is intact, the multimeter will either beep or show low resistance. If the fuse is blown, the multimeter will not beep or will show infinite resistance, indicating no continuity.
A semiconductor fuse is used in a VFD to protect the sensitive components of the drive, such as power semiconductors (IGBTs, diodes, etc.), from overcurrent and short circuit conditions. VFDs operate in environments where rapid changes in voltage and current occur, and semiconductor fuses are necessary to provide fast and reliable protection. These fuses prevent damage from unexpected fault conditions, ensuring the longevity and safe operation of the drive.
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