High-accuracy protection components configured to secure commercial and utility-scale solar arrays across Nepal's diverse regions.
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.
Navigating high altitudes, grid instability, and extreme environmental variables in South Asia's renewable corridor.
Many solar installations in Nepal are located at elevations above 1,500 meters (such as Kathmandu Valley, Pokhara, and Mustang). At high altitudes, reduced air density decreases the cooling capacity and dielectric properties of switchgear. SDEV protective relays are engineered with increased clearance distances to prevent flashovers.
The Nepal Electricity Authority (NEA) grid often suffers from load fluctuations, transient surges, and under/over voltage situations. Our programmable relays protect the PV array and commercial inverters by isolating the solar generation loop within milliseconds of an anomaly.
Nepal's grid heavily relies on run-of-river hydropower. Dry season solar generation supplements this network. Safeguarding solar arrays from backfeeding and grid synchronization errors during dynamic hybrid load shifting requires smart relays and breakers.
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.
Whether deployment occurs in the dry plains of the Terai region or the mountainous terrain of the Himalayas, our solar array protection components are designed to withstand thermal cycling, relative humidity up to 95%, and severe seismic activities common in Nepal.
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.
For solar projects in Nepal, we provide dedicated support to engineering consultancies and EPC firms, assisting them in aligning their solar installations with national electrical guidelines. By incorporating our intelligent programmable vacuum circuit breakers and leakage circuit breakers, local integrators can prevent grid trips and lower O&M costs.
Tailoring robust protective topologies to meet localized solar plant designs across Kathmandu, Pokhara, Lalitpur, and beyond.
Large manufacturing facilities and warehouse structures in Biratnagar and Birgunj rely on stable solar energy to reduce operational diesel reliance. Our smart WiFi remote circuit breakers and pluggable interface relays offer precise load control and overload isolation, shielding delicate hardware from damage.
Under the NEA’s PPA schemes, multi-megawatt solar parks are expanding in places like Nuwakot. These installations call for heavy-duty protection options, such as the Zw32-12 Outdoor Vacuum Circuit Breaker. These units isolate high-voltage surges and short circuits, minimizing system downtime.
Mountain communities depend on localized solar-plus-storage mini-grids to power critical health facilities. The compact, high-efficiency DZ47-63 miniature circuit breakers protect local sub-stations, battery banks, and agricultural water pumping machinery from sudden electric faults.
To ensure correct sizing and integration in high-altitude Nepalese installations, SDEV provides comprehensive laboratory evaluations of our relays and breakers. Use the baseline specifications below to determine grid compatibility.
As solar projects scale globally and across South Asia, SDEV's R&D division is driving innovations in protection topologies:
1. IoT Connected Systems: We are integrating LoRaWAN and WiFi protocols directly into breakers and control units, allowing real-time monitoring of insulation and coil temperatures in remote microgrids.
2. Dynamic Fault Current Interruption: Our engineers are fine-tuning intelligent fault-detection algorithms that distinguish between momentary transients and true electrical faults, eliminating unnecessary shutdowns.
3. Materials for Harsh Climates: By utilizing advanced UV-resistant polymers and heavy-duty contact plates, our enclosures operate reliably across a broad range of temperatures, from hot plains to freezing heights.
Explore our selection of certified low-voltage and medium-voltage components, optimized for solar arrays and utility interfaces.
Get answers to technical and compliance questions regarding photovoltaic array isolation in the South Asian region.
Get in touch with our technical sales division to request detailed product catalogs, circuit diagrams, and custom quotes. Ensure your solar arrays comply with Nepalese grid and altitude safety requirements.
SDEV Charger
