Home / Products / High Voltage Power Distribution & Protection Series / High Voltage Surge Arrester / JUNW YH10W 24/72 33/99 Zinc Oxide Surge Arrester
High Voltage Surge Arrester
Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.

JUNW YH10W 24/72 33/99 Zinc Oxide Surge Arrester

JUNW YH10W Series Gapless Metal Oxide Surge Arresters
1. Core Product & Universal Advantages
JUNW YH10W series gapless metal oxide surge arresters (MOA) are high-performance overvoltage protection devices fully compliant with IEC 60099-4 international standards. Built with premium zinc oxide varistor discs, they deliver excellent nonlinear volt-ampere characteristics and ultra-fast response to lightning/switching overvoltages, safeguarding medium-voltage equipment (transformers, breakers, busbars) from surge damage. Their fully sealed silicone rubber housing ensures superior UV resistance, anti-pollution flashover, aging resistance and maintenance-free operation in harsh outdoor environments.
2. YH10W 24/72 (24kV Class)
Tailored for 24kV medium-voltage distribution systems, this model features a 10kA rated discharge current, 24kV rated voltage (Uₑ), 19.2kV maximum continuous operating voltage (U꜀), and ≤72kV lightning impulse residual voltage. It is optimized for 20kV/24kV grid retrofits, overhead lines and distribution substations, providing reliable overvoltage protection for 24kV-class electrical assets.
3. YH10W 33/99 (33kV Class)
Designed for 33kV/35kV high-voltage distribution networks, it retains the 10kA rated discharge current while upgrading insulation performance: 33kV rated voltage (Uₑ), 26.4kV maximum continuous operating voltage (U꜀), and ≤99kV lightning impulse residual voltage. It meets the stricter overvoltage protection requirements of 35kV-class power systems, ideal for 35kV transformers, transmission lines and industrial power projects.
4. Application & Installation Benefits
Both models feature compact, lightweight designs for easy pole/equipment mounting, with no regular maintenance required. Covering 24kV and 33kV mainstream medium-voltage levels, they provide flexible, reliable overvoltage protection solutions for urban/rural power grids, renewable energy projects and industrial distribution systems.

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Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd. upholds the core values of quality, innovation and integrity. Over the past 19 years, these principles have enabled us to grow into a leading manufacturing and trading enterprise and drive our commitment to delivering outstanding products.
Since the company’s founding, Zhang Shuping, founder of Junwei Electric, has always emphasized: “If people and enterprises in French-speaking African countries need electricity, they need the products and services we provide. Whether for new or existing demand, we wholeheartedly supply them with the products and services they require.” Providing customers with high-quality products supported by professionally skilled staff is the mission and passion of the Junwei Electric family.
Zhejiang Junwei Electric Co., Ltd. specializes in providing integrated solutions. Since 2007, Junwei Electric has kept a simple promise: to offer the most reliable products, the most reliable team and the most reliable services at the most competitive prices. With abundant inventory and a strong supplier network, Junwei is committed to delivering a hassle-free experience for customers. All products are certified for safety and reliability, ready for immediate operation.
Quality, Innovation, Integrity – Your Trusted Electrical Partner
We focus on the R&D and production of high and low voltage electrical products, including circuit breakers, meter boxes and fuses. Our products are exported to many African countries such as Cameroon, Côte d’Ivoire, Morocco and Burkina Faso. We have also established long-term and stable cooperative relations with power authorities in Senegal, Gabon, Benin, Guinea and other countries, serving as their important supplier of low-voltage electrical products in China.
We have a professional R&D team and laboratory, dedicated to product innovation and technological upgrading. We firmly believe that progress stems from demand, curiosity and the pursuit of excellence. Therefore, all finished products undergo multiple strict inspections to ensure stable and reliable performance.
We do not merely sell products – we deliver peace of mind. With a complete after-sales service system and efficient supply chain management, we have won the long-term trust of overseas customers. Our promise is simple: to provide safe, durable and economical electrical solutions with our professional expertise and attentive service.
Our persistence in quality has earned us an excellent reputation.
Innovation is our driving force, and reliability is our promise.
All our production and quality management systems meet or exceed CE and ISO standards. The products you receive are certified, safe and reliable, and can be installed and used directly.
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