Dehler
Dehler
Photovoltaic systems are uniquely exposed to atmospheric discharges. Unlike standard AC circuits, DC systems in solar farms require specialized Surge Protective Devices (SPDs) that can handle high-energy transients without failing under constant DC voltage stress. As a leading exporter, we provide solutions that mitigate the "flywheel effect" of DC arcs.
The industry is shifting from 1000V to 1500V DC architectures to reduce BOS costs. Our custom solar PV surge protection is engineered for this high-voltage transition, ensuring compliance with IEC 61643-31 standards. We utilize advanced MOV (Metal Oxide Varistor) technology to manage peak current demands.
With over 8 years of R&D, Dehler Technology integrates specialized expertise in high-voltage engineering. Our factory processes adhere to ISO 9001, ensuring every SPD and switchgear unit meets rigorous safety benchmarks for international utilities.
The roadmap for Solar PV Surge Protection is evolving towards Intelligent Monitoring. Traditional passive SPDs are being replaced by units equipped with IoT sensors that communicate the health status of the device in real-time. This predictive maintenance approach reduces downtime in mega-scale solar farms.
| Max. Continuous Operating Voltage (Ucpv) | Up to 1500V DC |
| Nominal Discharge Current (In) | 20kA - 40kA |
| Response Time (tA) | < 25ns |
| Standard Compliance | IEC 61643-31 / EN 50539-11 |
Dehler Technology Co., Ltd., established in 2016, is a technology enterprise integrating R&D, production, sales, and service, specializing in the high and low voltage power equipment industry. Based in the Yanpan Economic Development Zone, Yueqing City, we operate specialized divisions for electrical complete equipment and transformers.
Our production portfolio includes high & low voltage switchgear, Prefabricated substations, cable branch cabinets, indoor & outdoor vacuum circuit breakers, and custom solar PV surge protection components. We adhere to the business philosophy of "survival through quality, development through technology, and efficiency through management."
For Engineering, Procurement, and Construction (EPC) firms, surge protection is a critical line-item for risk mitigation. We offer bulk supply chains for projects in Europe, Southeast Asia, and the Middle East, ensuring that components arrive with full documentation and country-specific certifications.
C&I solar installations require compact, high-reliability protection that can be integrated into existing distribution boards. Our custom GCS and GGD switchgear solutions provide seamless integration for industrial microgrids.
Navigating global standards (UL, CE, TUV) is our forte. We provide a 5-year replacement warranty on our core surge protection modules, backed by localized technical support in key export regions to ensure rapid response for critical energy assets.
Global Projects Completed
Year Established
Max Surge Protection
Factory Tested QC
Over the years, our company has diversified its product offerings and continuously upgraded its services. We strictly adhere to national quality system standards, cultivating a positive corporate image and building long-term partnerships with global suppliers.
"High-quality products, superior technology, and impeccable service" are our goals. We have established a large-scale production model to meet the challenges of international industrial electrical development.
Based in China with a global perspective, we sincerely collaborate with international partners. We welcome all parties to visit and inquire about our advanced power distribution products.
A: Solar panels generate Direct Current (DC). Standard AC surge protectors are not designed to extinguish DC arcs that can occur when a varistor fails. PV-specific SPDs include specialized internal disconnectors and arc-extinguishing chambers to handle the unique characteristics of DC power.
A: Type 1 (Class I) is designed to protect against direct lightning strikes (10/350 µs waveform) and is typically installed at the main entry point. Type 2 (Class II) protects against induced surges (8/20 µs waveform) from indirect strikes or switching operations, usually located at the inverter or combiner box.
A: Most SPDs have a visual indicator (Green for OK, Red for Replace). They should be inspected annually or after any significant local lightning storm. Their lifespan depends on the frequency of surge events in the region.
A: Yes. We specialize in custom configurations for switchgear and combiner boxes, allowing exporters to brand and specify technical parameters according to local market demands.
