Dupont Nomex410 insulating paper

Dupont Nomex410 insulating paper has excellent electrical properties, mechanical properties and thermal stability, suitable for a variety of electrical equipment.

The electrical properties of Nomex 410 insulating paper include high dielectric strength and voltage resistance. At 60Hz, its compressive strength can reach 2KV/mm, which makes it excellent in electrical equipment such as transformers. In addition, Nomex410 can maintain good mechanical properties at very low temperatures, such as liquid nitrogen points (77K), its tensile strength can even exceed 30% to 60% of the room temperature value, and the elongation at break remains at a high level.
 

At high temperatures, Nomex 410 insulating paper features a dielectric strength of 12KV/mm, which can be maintained at 409°C for several hours, showing its intended heat resistance. In addition, Nomex 410 showed improved elongation, tear strength and toughness at higher humidity.
 

In terms of application, Nomex410 insulating paper is widely used in electrical equipment such as motors and transformers, and is widely welcomed because of its good electrical performance and mechanical characteristics.
Product Technical Parameters：
 

Application Scene：
（Motor/reactor applications）

Sufficient production stock：

In the realm of electrical insulation, few materials have established a legacy of reliability and performance quite like Nomex 410 insulating paper. This meta-aramid paper represents a pinnacle of material science, offering a unique combination of properties that make it indispensable in a wide array of demanding applications, from power transformers and electric motors to aerospace and industrial equipment. Its continued prevalence is not a matter of chance but a testament to its unparalleled advantages, which address the core challenges faced by electrical engineers and designers.

Nomex 410 insulating paper is renowned for its inherent mechanical toughness and durability. Despite its paper-like appearance, it possesses high tear and puncture resistance, allowing it to withstand the rigors of fabrication, winding, and operation. This mechanical robustness ensures that the insulation remains intact during the manufacturing process and throughout the life of the equipment, even when subjected to vibration, shock, or mechanical stress. Its flexibility facilitates easy handling and forming around coils and conductors, making it a practical choice for complex insulation systems.

Another significant benefit is the material's innate chemical and moisture resistance. Unlike cellulosic papers, this type of insulating paper is highly resistant to most solvents, oils, and corrosive chemicals found in industrial environments. It also exhibits low moisture absorption, meaning its electrical and mechanical properties are largely unaffected by humid conditions. This leads to stable performance and prevents the degradation that can occur when moisture weakens other forms of insulation. This resilience allows equipment insulated with Nomex 410 to perform reliably in harsh and variable climates.

Finally, its halogen-free composition and proven track record of safety round out its key advantages. In the event of an extreme electrical fault or external fire, the material will not melt or drip. It instead chars and retains its structural integrity, providing a critical barrier to prevent the spread of flames and the generation of smoke and toxic gases. This focus on safety is paramount for applications in public spaces, transportation, and confined environments.

In conclusion, the comprehensive suite of properties offered by Nomex 410 insulating paper makes it a superior choice for high-performance electrical insulation. Its unique blend of thermal, electrical, mechanical, and chemical resistance provides engineers with a reliable, safe, and long-lasting material solution. The consistent performance of this meta-aramid paper under extreme conditions ensures the protection of valuable electrical assets, underscoring its enduring value and solidifying its status as a cornerstone of modern electrical design. The continued specification of Nomex 410 insulating paper across industries is a direct reflection of its unmatched advantages and proven performance.