As the world accelerates its transition toward renewable energy, Photovoltaic (PV) systems have become the cornerstone of global decarbonization. However, the sensitive nature of solar electronics—specifically inverters and controllers—makes them highly susceptible to voltage surges caused by lightning or grid switching. This has created a massive demand for PV Overvoltage Protection (SPD) devices.
In the current industrial landscape, overvoltage protection is no longer an optional accessory; it is a mandatory safety requirement in almost all jurisdictions, including the EU (IEC 61643-31) and North America (UL 1449). From massive utility-scale solar farms in the Atacama Desert to commercial rooftops in Germany, the reliability of the entire energy yield depends on the durability of these small yet critical components.
Foshan SDEV Charger Co., Ltd. is a trusted manufacturer of protective components for photovoltaic systems across the globe. Our experience of working in the electrical industry for more than 30 years allows us to create solar DC components that comply with the latest DC standards. Through our focus on solar DC protection design, production, and marketing, we can bring brand-building PV protection solutions.
With the inheritance of 30+ years of experience in the research and production of DC protection products, we are continuously dedicated to the EV charging field. In recent years, SDEV has attentively invested resources in research on EV-related products, successively manufacturing other types of products, thus reaping wide market popularity across the world.
Stay ahead of the market with insights into the next generation of PV safety technology.
The industry is shifting from 1000V to 1500V DC architectures to reduce LCOE. This requires overvoltage protection devices capable of handling higher continuous operating voltages without degradation.
Modern procurement demands SPDs with remote signaling contacts or IoT connectivity to monitor the health of the protection module in real-time, reducing O&M costs.
With the rise of BESS (Battery Energy Storage Systems), protection must now account for bidirectional power flows and high short-circuit current ratings (SCCR).
Choosing the right partner is vital for project longevity. Here are the leading global players in the PV overvoltage protection market:
Quality is the primary goal among each of our workshops since this leads to the best performance and safety for any Solar, Storage, and EV charging system. Our commitment to quality increased brand awareness for your company. To achieve our goal, our factory and products comply with UL, SAA, CB, CE, TUV, ISO, and RoHS standards.
Achieving our goals come from formulating new products based on the market demands through our in-house R&D team. Our efforts have led to our first UL508i listed patented DC switch within China and the DC-PV2 DC switch produced for the global market. With our cutting-edge PV protective products and EV chargers, we aim to create a long-term partnership with many renewables companies.
China has become the global hub for PV component manufacturing, offering unparalleled advantages in the supply chain.
As a Foshan-based manufacturer, SDEV benefits from a complete industrial cluster, ensuring fast lead times and competitive pricing for bulk orders.
We can move from prototype to mass production significantly faster than Western counterparts, allowing us to adapt to changing safety standards (like the latest IEC updates) instantly.
Global exporters require tailored solutions. Whether it's custom branding or specific voltage requirements, our factory provides the flexibility that large conglomerates often lack.
For industrial applications, we recommend Type 2 SPDs for most inverter locations and Type 1 for areas with high lightning density. Our products feature high Imax ratings (up to 40kA) and low protection levels (Up) to ensure maximum safety for the most delicate semiconductors.
As we look toward 2030, the integration of AI-driven predictive maintenance and even more robust overvoltage protection will be key. Foshan SDEV Charger Co., Ltd. remains at the forefront, blending 30 years of traditional manufacturing excellence with the latest smart energy technologies. Whether you are a global distributor or a large-scale project developer, our PV overvoltage protection solutions are engineered to ensure your energy systems stay online, every single day.
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