The SUNTREE SHLX-PV8/1 DC Combiner Box is designed to efficiently combine the output of 8 photovoltaic (PV) strings into a single output, simplifying solar system wiring and improving overall system safety. Built with high-quality materials and equipped with advanced protection features, it ensures reliable performance even in harsh outdoor environments. Suitable for both residential and commercial solar installations, it enhances system efficiency while reducing installation complexity.
Features & Benefits
- Efficient DC power aggregation: Combines up to 8 PV input strings into 1 output, simplifying system architecture and reducing cable complexity.
- Comprehensive protection system: Equipped with DC fuse, surge protection device (SPD), and DC isolation switch/circuit breaker for overcurrent, lightning, and short circuit protection.
- High-voltage system compatibility: Supports up to 1000V DC systems with stable performance across demanding solar applications.
- Durable outdoor enclosure: IP65-rated design provides waterproof, dustproof, and UV-resistant protection, suitable for harsh environmental conditions.
- Wide solar module compatibility: Works with monocrystalline, polycrystalline, and thin-film solar panels, allowing flexible system design.
- Simplified installation & wiring: Pre-configured layout with MC4 connectors enables faster setup, cleaner wiring, and reduced installation time.
- Robust construction: Built with cold-rolled steel and high-quality materials for long-term durability and mechanical strength.
- High surge protection capacity: Integrated SPD with up to 40kA discharge capability ensures protection against lightning and voltage spikes.
- Flexible configuration options: Supports adjustable fuse and switch ratings, with optional intelligent monitoring for advanced system diagnostics.
- Reliable performance in extreme conditions: Operates efficiently in temperatures from -25°C to +55°C, ideal for outdoor solar deployments.
- Enhanced system safety & control: Provides grounding protection, isolation, and safe shutdown capabilities for maintenance and emergency scenarios.
- Optimized for scalable solar systems: Suitable for residential, commercial, and off-grid installations requiring efficient multi-string management.
Use Cases
- Residential solar rooftop systems: Combines multiple PV strings into a single output, making home solar installations cleaner and easier to manage.
- Commercial & industrial solar projects: Ideal for offices, factories, and warehouses requiring organized DC distribution and enhanced system protection.
- Solar farms & ground-mounted arrays: Efficiently aggregates multiple panel strings, reducing cable runs and improving large-scale system reliability.
- Off-grid solar power systems: Supports standalone energy setups in remote areas with reliable DC management and built-in protection features.
- Hybrid solar systems: Works seamlessly with inverter-battery setups, helping manage inputs from multiple solar arrays.
- Telecom tower power systems: Ensures stable and protected solar input for telecom infrastructure in remote and rural locations.
- Rural electrification projects: Suitable for community solar installations where simplified wiring and durability are essential.
- Agricultural solar applications: Powers irrigation systems, water pumps, and farm equipment with efficient PV string management.
- Backup power systems: Enhances reliability in solar + battery backup setups for homes and businesses.
- Mini-grid solar installations: Supports small-scale distributed energy systems by consolidating multiple solar inputs efficiently.
Value Propositions
- Reduced installation cost & time: Combines multiple PV inputs into one output, minimizing cabling, labor, and overall system setup time.
- Enhanced system safety: Built-in DC fuse, surge protection, and isolation switch reduce risks from overcurrent, lightning, and electrical faults.
- Improved system reliability: Protects critical components like inverters and batteries, ensuring stable and long-lasting solar performance.
- Optimized system efficiency: Organized DC input management reduces power losses and improves overall energy flow.
- Lower maintenance effort: Structured internal design makes troubleshooting, inspection, and servicing quicker and easier.
- Scalable system design: Easily supports expansion of solar installations without major rewiring or redesign.
- Durability in harsh environments: IP65-rated enclosure ensures dependable operation in heat, dust, humidity, and outdoor conditions.
- Flexible configuration options: Adapts to different solar panel types and system requirements with adjustable component ratings.
- Cost-effective protection solution: Integrates multiple safety features in one unit, eliminating the need for separate protection devices.
- Supports long-term investment: Extends the lifespan of the solar system by safeguarding against electrical damage and environmental stress.
Local Market Positioning in Tanzania
- Aligned with off-grid energy demand: Ideal for Tanzania’s large off-grid population, where over 80% of people lack reliable grid access, making solar a primary energy solution.
- Supports rural electrification projects: Designed for mini-grids and standalone systems widely used in rural communities, schools, and health centers.
- Optimized for high solar potential regions: Performs efficiently in Tanzania’s strong solar irradiation zones (4–7 kWh/m²/day), maximizing energy harvesting.
- Ideal for agricultural solar applications: Supports irrigation, water pumping, and farming operations—key sectors driving solar adoption in Tanzania.
- Fits telecom & infrastructure needs: Reliable DC protection solution for telecom towers and remote installations requiring stable power supply.
- Supports growing mini-grid market: Suitable for expanding solar mini-grid deployments across regions like Lake Victoria, Arusha, and Dodoma.
- Cost-effective for emerging markets: Combines multiple protection features in one unit, addressing budget constraints common in Tanzanian projects.
- Adapted for harsh environmental conditions: Built for high heat, dust, and humidity, which are common challenges in Tanzanian installations.
- Backed by government solar initiatives: Aligns with policies promoting solar adoption through tax incentives and electrification programs.
- Supports rapid solar market growth: Positioned for a fast-expanding solar sector driven by increasing demand for reliable,
- independent power solutions.
Technical Specification
| Parameter | Specification |
|---|---|
| Model | SHLX-PV8/1 |
| Maximum System Voltage | 1000V DC |
| Number of Input Strings | 8 |
| Number of Output Strings | 1 |
| Max Input Current per String | 0–20A |
| Fuse Rating | 15A |
| Max Output Switch Current | 125A |
| Output Switch Type | DC Isolator / DC Circuit Breaker |
| Number of MPPT Inputs | N (Depends on inverter configuration) |
| Nominal Discharge Current | 20kA |
| Maximum Discharge Current | 40kA |
| Voltage Protection Level | 3.8kV |
| Max Continuous Operating Voltage (Uc) | 1050V |
| Poles | 3P |
| Protection Grade | IP65 |
| Connector Type | MC4 Waterproof Connectors |
| Installation Method | Wall Mounted |
| Operating Temperature Range | -25°C to +55°C |
| Enclosure Material | Cold Rolled Steel |
| Application Type | Outdoor / Indoor |



