Explore our top-tier solar connectors, rapid shutdown units, string monitors, and protection components engineered to withstand extreme environmental parameters.
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.
As PV infrastructure expands globally, asset owners face significant losses from mismatch, component degradation, and electrical faults. Advanced monitoring platforms offer key operational insights.
String-level monitoring registers fine deviation changes across individual modules. Leveraging solutions like the Acrel Agf-M12t, operators isolate and repair faults like underperformance or partial shading before they impact system output.
High-voltage DC lines pose insulation breakdown risks. Modern Rapid Shutdown Devices (RSD) and integrated fireman switches automatically cut individual panels to safe voltage limits (under 80V) within 30 seconds of trigger.
Continuous data logging over RS485/Modbus RTU networks links directly with IoT platforms, providing cloud-based analytics to alert O&M teams of anomaly alerts before physical component breakdown occurs.
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.
Every batch of our DC disconnectors, surge protection devices, and array monitoring equipment undergoes a comprehensive sequence of safety stress tests, simulating operation under extreme ambient temperatures, relative humidity cycles, and high transient overvoltages.
For engineering procurement contracting (EPC) companies, reliable telemetry integration is non-negotiable. Sourcing China's robust solar monitoring solutions provides both hardware reliability and competitive pricing.
Commercial and Industrial (C&I) solar architectures demand real-time parameters from string level currents down to local temperature indices inside combiner boxes. By utilizing rail-mounted hardware inside decentralized array configurations, operators run data loops directly back to localized SCADA hubs. Standardizing on common industrial physical layers allows simple retrofits across systems with mixed inverter components.
| Feature Parameter | Traditional Inverter Tracking | SDEV Array / String-Level Telemetry | Industrial Application Impact |
|---|---|---|---|
| Granularity | System or Inverter Group level tracking | Individual string tracking (Up to 12/24 channels) | Pinpoint exact module underperformance immediately |
| Response Delay | 10 minutes to 1 hour polling | Real-time Modbus polling (under 5 seconds) | Fast isolation of localized safety events like ground faults |
| Local Isolation | Centralized AC disconnects | Local string rapid shutdown (RSD) at 1500V | Ensures high-level firefighter protection during localized outages |
| Safety Interlocks | Basic thermal trip sensors | Integrative heat sensors, SPDs, & current checks | Prevents localized arc-flashes and thermal runaways |
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.
Continuous innovation ensures our components match evolving grid dynamics. As target operational voltages shift from 1000V up to 1500V, our engineering team continuously designs thicker insulation tracks, optimized arc-extinguishing chambers, and enhanced thermal dissipation metrics across all product lines.
Deploying solar projects in Europe, the Americas, or Asia-Pacific requires strict adherence to localized grid codes, firefighter safety rules, and utility interconnections.
Rapid shutdown mandates require arrays on or inside buildings to depress voltages below 30V within the boundary array inside 30 seconds. Solutions like our 1500V 40A PV Rapid Shutdown Device satisfy these requirements safely.
European installation guidelines focus heavily on DC isolation. Overcurrent protective structures and Type 1/Type 2 Surge Protection Devices (SPDs) are key components to protect sensitive telemetry cards from high transient overvoltages.
Tough ambient conditions in Australia demand IP66 or IP67 ratings for external switchgear. The IP66 1600V Solar Rapid Shutdown Safety Switch provides UV-stabilized, high-degree water ingress protection.
The future of solar energy systems points directly toward fully integrated energy hubs combining generation, intelligent storage control, and smart EV charging infrastructures.
As microgrid architectures deploy internationally, monitoring platforms must process bidirectional power flows. Modern data loggers must map battery health metrics, state of charge (SoC), load conditions, and generation patterns simultaneously. The expansion of high-power EV charging parks requires sub-millisecond safety disconnection units capable of preventing DC fault loops from traveling between vehicles and local storage batteries.
Through our dedicated R&D programs, SDEV is continuously prototyping modular combiners that bundle traditional fuse elements, high-voltage SPDs, string monitoring circuits, and automated DC isolators into single, lightweight, field-replaceable housings.
Get answers to critical technical questions regarding solar monitoring platforms, safety switches, and Chinese manufacturing supply chains.
String-level monitoring captures electrical parameters like voltage and current for individual series of modules, isolating faults to a specific line. Inverter-level tracking only reports aggregated totals across all connected inputs, making it difficult to detect individual module underperformance or localized wiring issues.
Operating at 1500V DC allows for longer PV string lengths, which reduces the number of required combiner boxes, DC cables, and field connections. This lowers balance of system (BOS) capital costs and decreases overall resistive power losses.
UL508i standard specifies design requirements for manual disconnect switches used in PV systems. Our patented DC switches undergo tests for continuous load current capability, physical arc suppression, and sustained overvoltage endurance under harsh thermal conditions.
Most string monitors use Modbus RTU protocols over physical RS485 connections. This industry-standard link integrates easily with major third-party industrial data loggers, RTUs, and central SCADA platforms.
Sourcing directly from SDEV gives you access to over 30 years of specialized manufacturing experience. We provide OEM/ODM options, complete compliance certifications (CE, TUV, UL, SAA, RoHS), and vertically integrated testing laboratories to ensure reliability.
Enhance your solar installations with our tested connectors, disconnect switches, and safety disconnect assemblies designed for critical power isolation.
SDEV Charger
