High-performance RSD devices compliant with UL 1741 and NEC 690.12 standards.
As the world pivots toward renewable energy, solar safety has transitioned from a recommendation to a regulatory mandate. The Global Solar Rapid Shutdown Controller (RSD) market is currently experiencing unprecedented growth, driven by stringent fire safety codes such as the National Electrical Code (NEC) in the United States and similar directives across Europe and Asia-Pacific regions.
In North America, NEC 2017, 2020, and 2023 regulations require module-level shutdown to ensure that first responders are safe from high-voltage DC electricity during emergencies. Similarly, European markets are increasingly adopting these standards to protect residential and commercial infrastructure. This global shift has created a massive demand for reliable, cost-effective, and smart RSD solutions that can integrate seamlessly with various inverter brands and PV module types.
Stay ahead of the curve with our insights into the PV safety market evolution.
Modern RSDs are evolving to include IoT-based real-time monitoring, allowing O&M teams to track performance and safety at the module level via cloud platforms.
With the shift toward 1500V DC systems in utility-scale projects, rapid shutdown controllers must now handle higher voltages while maintaining sub-30-second shutdown times.
Integration of Power Optimizers with RSD functions is becoming the standard, maximizing energy yield while ensuring 100% safety compliance.
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.
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. To achieve our goal, our factory and products comply with UL, SAA, CB, CE, TUV, ISO, and RoHS standards.
With the inheritance of 30+ years of experience, we are continuously dedicated to the EV charging and PV safety fields, reaping wide market popularity across the world.
Tailored RSD solutions for diverse regional requirements and engineering standards.
For international EPC (Engineering, Procurement, and Construction) companies and solar wholesalers, procurement of Rapid Shutdown Controllers involves balancing technical reliability with cost-efficiency. Our Chinese factory offers the perfect equilibrium by providing high-capacity production that meets the volume requirements of utility-scale projects while maintaining the precision needed for residential rooftops.
Unmatched supply chain resilience and cutting-edge R&D capabilities.
Leveraging China's mature semiconductor and electrical ecosystem, we provide rapid lead times and stable pricing even during global supply fluctuations.
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. We innovate based on direct market feedback.
Every Rapid Shutdown Controller undergoes rigorous testing to meet UL 1741, TUV, and CE standards, ensuring peace of mind for installers and homeowners alike.
Achieving our goals come from formulating new products based on the market demands through our in-house R&D team. With our cutting-edge PV protective products and EV chargers, we aim to create a long-term partnership with many renewables companies worldwide. Our focus remains on the triple pillars of safety: Reaction Speed, Reliability under Extreme Weather, and Resilience against Electrical Faults.
Ensuring maximum safety for your energy investment.
The core of our Solar Rapid Shutdown Controller technology lies in its ability to de-energize the solar array at the source within milliseconds. By implementing a sophisticated communication protocol (PLC or Heartbeat signal), our controllers ensure that the voltage on the DC lines is reduced to safe levels (<30V) during a grid outage or when the emergency button is pressed.
As top manufacturers and exporters in China, we prioritize materials that withstand UV radiation, high temperatures, and environmental stressors. Our IP68-rated enclosures ensure that the RSD units perform flawlessly for 25+ years, matching the lifespan of the solar panels themselves. Whether you are looking for String-Level Rapid Shutdown or Module-Level Rapid Shutdown, our diverse portfolio covers all technical requirements for modern PV installations.
SDEV Charger
