Industrial grade, IP66-certified isolators optimized for Bangladesh's localized utility-scale and industrial rooftop installations.
Bangladesh is undergoing a rapid renewable energy transformation. Driven by the Sustainable and Renewable Energy Development Authority (SREDA) and the Bangladesh Power Development Board (BPDB), the country's national grid is increasingly incorporating decentralized utility-scale projects and commercial rooftop arrays.
Particularly in industrial zones such as Gazipur, Narayanganj, Savar, and the Chittagong Export Processing Zone (CEPZ), textile mills and manufacturing plants are deploying multi-megawatt rooftop PV systems under the national Net Metering Guidelines. These demanding industrial systems require highly reliable high-voltage DC protection systems.
As operating DC system voltages transition from legacy 1000V up to the modern 1500V DC standard to reduce BOS (Balance of System) wiring costs, the risk of destructive DC electric arcing rises exponentially. Selecting premium, tested DC disconnect switches is critical for ensuring personnel safety and preventing devastating fires in critical production environments.
Standard off-the-shelf isolator switches frequently fail in tropical zones due to severe environmental derating. Bangladesh solar plants encounter:
"Our solar disconnectors feature integrated breather valves to prevent condensation build-up inside the casing under shifting hot-and-humid cycle loads."
Global Projects Completed
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Certified Safety Standards
Understanding the critical technical specifications required for safe and reliable PV system isolation.
Unlike AC currents, DC currents do not cross a natural zero-point to extinguish arcs. Our switches utilize specialized magnetic blowout systems that force the drawn electrical arc into cooling splitter plates, extinguishing it safely in under 3 milliseconds.
Equipped with an IP66 UV-stabilized polycarbonate enclosure, our products withstand sustained exposure to high-pressure water jets and blowing sand. They feature deep silicone sealing rings to prevent any water ingress during monsoon downpours.
Standard PV disconnects overheat when subjected to the tropical heat of Bangladesh. Our high-conductivity silver-alloy contact tips keep operating temperatures low, delivering steady rated current at ambient temperatures up to 60°C.
| Technical Parameter | Industrial Standard Requirement | Phlox Energy Design Specifications | Advantage for Bangladesh Applications |
|---|---|---|---|
| Rated Operational Voltage (Ue) | 1000V DC | Up to 1500V DC (2P/4P Options) | Ready for high-efficiency utility and rooftop arrays. |
| Ingress Protection Rating | IP55 / IP65 | IP66 Waterproof Case (Surface Mounted) | Complete protection against heavy tropical monsoons. |
| Arcing Time | < 10 ms | < 3 ms (Ultra-fast separation) | Prevents high-temperature arc damage, extending operational life. |
| Contact Material | Copper alloy / Tin plated | Silver-plated Copper (Ag/Cu) contacts | Reduces contact resistance, preventing overheating in high heat. |
| Operating Temperatures | -25°C to +40°C | -40°C to +85°C (Fully derated design) | Maintains reliability inside hot outdoor combiner boxes. |
Wenzhou Phlox Energy Co., Ltd. is a professional manufacturer and supplier specializing in solar photovoltaic protection and electrical connection solutions. With more than 10 years of industry experience, we are dedicated to the research, development, production, and innovation of high-quality solar accessories and low-voltage electrical products for global renewable energy markets.
Our manufacturing facility covers an area of over 11,500 square meters and is equipped with 7 advanced production lines, more than 100 automated production machines, and a skilled workforce of over 150 employees. With strong production capacity and efficient management systems, our annual output value exceeds USD 20 million.
Phlox Energy specializes in the production of DC miniature circuit breakers (MCBs), surge protective devices (SPDs), photovoltaic fuses, solar connectors, DC isolator switches, distribution boxes, combiner boxes, and other solar power system components. Our products are widely used in residential, commercial, and industrial photovoltaic installations around the world.
Quality is at the core of everything we do. Our products are manufactured in strict accordance with international standards and have obtained certifications including CE, TUV, IEC, CB, and ISO 9001. Every product undergoes comprehensive quality inspections and rigorous testing procedures to ensure safety, reliability, and long-term performance in demanding environments.
Driven by continuous innovation, our experienced R&D team works closely with customers to develop customized solutions that meet evolving market requirements. We also provide OEM and ODM services, helping partners build competitive product portfolios and strengthen their market presence.
Having successfully participated in more than 3,900 solar energy projects worldwide, Phlox Energy has earned a strong reputation for premium product quality, competitive pricing, reliable delivery, and professional after-sales support. Our commitment to customer satisfaction and long-term cooperation has made us a trusted partner for distributors, installers, EPC contractors, and solar energy companies across the globe.
At Wenzhou Phlox Energy Co., Ltd., we are committed to supporting the global transition to clean and sustainable energy. We look forward to building long-term partnerships with customers worldwide and achieving mutual growth and success together.
We provide a reliable supply chain pathway from Wenzhou, China, directly to Bangladesh's commercial nodes:
| Main Sea Port Routes: | Ningbo / Shanghai to Chittagong Port (approx. 14-18 Days transit) |
| Air Freight Option: | Shanghai Pudong / Guangzhou to Dhaka Airport (approx. 3-5 Days transit) |
| Customs Compliance: | Pre-delivery testing certificates matching BPDB and SREDA import guidelines |
Managing solar installations in South Asia requires customized balance of system components. Wenzhou Phlox Energy offers flexible OEM and ODM services, enabling custom configurations for in-built terminal shunts, pre-wired MC4 connectors, and custom pole setups.
By housing all manufacturing processes under one roof—from sheet metal laser cutting, bending, and robotic welding to final assembly and automatic packing—we maintain strict quality control and minimize supply chain delays.
Our raw material planning ensures stable pricing and component availability, providing a competitive edge for EPC contractors bidding on major utility-scale solar projects in Bangladesh.
Developing the next generation of PV isolation switches to support modern global grid architectures.
Integrating RS485 communication protocols and shunt trips into the switch assembly. This allows real-time thermal monitoring and remote shutdown commands from the central SCADA system in utility plants.
As battery backup systems gain traction in industrial textile zones to manage grid instability, we are developing specialized bi-directional DC isolators rated up to 2000V DC and 400A capacity.
Optimizing mechanical designs to integrate fuses, SPDs, and disconnect switches into a single, compact unit, reducing installation space and time on commercial rooftops.
Answers to critical engineering questions regarding the application and deployment of PV disconnect switches.
Explore our full range of DC protection components, high-voltage switches, and reactive power compensators for global distribution.
Looking for a Reliable PV Disconnect Switch Factory to Serve Your Projects in Bangladesh?
Phlox Energy
