DC Fuse Solutions: 1500V, 50kA Breaking Capacity

DC arcing is inherently difficult to interrupt, but ZHNYU ELECTRIC addresses this challenge with cutting-edge arc extinguishing technology in our DC fuses. Our engineers have developed a unique composite filler using high-purity silica sand and organic additives that accelerates arc cooling and deionization. This innovation, combined with a patented element design that creates multiple series arcs, reduces arc voltage and ensures rapid current interruption. In independent laboratory tests, these fuses cleared a 30kA fault in less than 5ms without any restrike. The low arc voltage minimizes stress on connected components, prolonging system lifespan.

Durability is a cornerstone of our DC fuse manufacturing philosophy. We use only premium materials such as silver-plated copper terminals and ceramic bodies that withstand thermal cycling and mechanical stress. Our fuses are engineered to endure the harsh conditions of industrial and renewable energy installations. For instance, in a saltwater coastal environment where corrosion is a constant threat, our stainless steel hardware and resin-sealed construction resist oxidation, ensuring a service life of more than 20 years. This longevity is backed by accelerated aging tests that simulate 50 years of operation, revealing less than 10% volumetric expansion and no significant resistance drift.