Dehler
From passive components to intelligent grid protectors.
In the realm of high-voltage protection, the Lightning Arrester Device has undergone a radical transformation. Modern custom solutions now prioritize gapless Zinc Oxide (ZnO) technology, which offers superior non-linear V-I characteristics compared to traditional silicon carbide arresters. This evolution ensures that even the most sensitive electronic equipment within a substation is shielded from steep-front lightning surges and switching overvoltages.
Looking toward the 2030 roadmap, the industry is shifting toward Smart Surge Arresters. These devices integrate leakage current sensors and IoT modules to provide real-time health monitoring. As a leading exporter, we are pioneering the integration of fiber-optic temperature sensing within the arrester core to prevent catastrophic failures before they occur.
Dehler Technology Co., Ltd., established in 2016, is currently located at No. 271, Weishiqi Road, Yanpan Economic Development Zone, Yueqing City. We also have a dedicated electrical complete equipment transformer division located at No. 178, Jingba Road, Economic Development Zone. As a technology enterprise integrating R&D, production, sales, and service, we specialize in the high and low voltage power equipment industry.
Our core portfolio includes high & low voltage switchgear, Prefabricated substations, cable branch cabinets, indoor & outdoor vacuum circuit breakers, and critical electrical components. We serve sectors such as power generation, railway electrification, steel mills, and renewable energy sectors like wind power.
Established Excellence
Global Projects
Certified Quality
Technical Support
Comprehensive protection strategies for complex industrial ecosystems.
Photovoltaic and wind farms are often located in open, lightning-prone areas. Our custom arrester configurations are designed specifically for the DC side of solar inverters and the high-vibration environment of wind turbine nacelles.
High-speed rail requires arresters that can handle rapid switching transients and harmonic interference. We provide specialized traction substation protection that meets stringent international rail safety standards.
As cities become smarter, the density of sensitive electronics increases. Our "Zone Protection" approach integrates lightning arresters with our GCS Low Voltage Switchgear to create a multi-layered defense system.
At Dehler Technology, our manufacturing philosophy is rooted in Industry 4.0 principles. By leveraging automated winding machines for our ZnO varistor blocks and vacuum-casting for polymer housings, we ensure that every Lightning Arrester Device exported meets a zero-defect standard.
Our vertical integration—spanning from the production of high-voltage switchgear to the smallest insulation components—allows us to mitigate global supply chain volatility. For global enterprises, this translates to 30% shorter lead times and 100% traceability of materials.
Over the years, our company has diversified its product offerings and continuously upgraded its services, earning widespread acclaim. We strictly adhere to national quality system standards, which not only strengthens our overall strength but also plays a crucial role in cultivating a positive corporate image.
“High-quality products, superior technology, and impeccable service" are the goals pursued by Dehler. We strive to innovate our business philosophy, enhance management capabilities, improve our market network, and accelerate resource integration to fully participate in market competition.
Navigating international standards with expert guidance.
For a Global Procurement Manager, the challenge isn't just finding a supplier; it's finding a partner who understands IEC 60099-4, IEEE C62.11, and regional grid codes. Dehler provides comprehensive localization support, including third-party type test reports (KEMA, TUV) and on-site commissioning guidance.
Customizing creepage distances for coastal high-salt areas or high-altitude insulation compensation for mountainous regions.
All products undergo rigorous routine tests including power-frequency voltage-withstand tests and partial discharge measurements.
Complete BIM models and CAD drawings are provided for seamless integration into EPC project designs.
Expert insights into lightning protection and procurement.
Trust built through years of collaboration.





