PV Combiner Boxes
China Photovoltaic Lightning Protection Combiner Box 14 in 1 Out – Reliable Suppliers & Factory for Solar Systems
The Solar Array System DC Combiner Box 14 in 1 Out is an essential component for any photovoltaic system, designed to enhance efficiency and safety. Manufactured in China, this high-quality combiner box boasts an IP65 protection level, ensuring superior waterproofing and dustproofing capabilities for challenging outdoor conditions. As a leading supplier in the industry, our factory integrates advanced lightning protection features, including a built-in module that can withstand both direct and induced lightning strikes, safeguarding your solar system’s integrity. This innovative product effectively converges currents from multiple PV modules, minimizing the number of connecting wires, reducing line losses, and maximizing overall system efficiency. Choose our Solar Array System DC Combiner Box for reliable performance and advanced safety in your solar energy projects
PV input: 14 string
DC output: 1 string
Product Introduction
This outdoor photovoltaic combiner box is a high quality choice for photovoltaic systems. It is specially designed for outdoor PV systems, offering efficient power collection for stable and reliable energy conversion.
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8-28 string inputs accommodate medium to large systems in a single cabinet.
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High-voltage, high-temperature silicone cables ensure over 20 years of aging-free performance.
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Standard DC surge protection, anti-reverse modules, fuses, and circuit breakers for enhanced safety.
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Compact design with IP54 protection rating for worry-free outdoor installation.
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Large heat sinks (260x180x40mm) with black oxidation for 20-year color retention and reliable cooling.
Product Parameters
| Type Designation | PVB-12 | PVB-14 | PVB-16 | PVB-18 |
|---|---|---|---|---|
| Max. PV Array Input String | 12 | 14 | 16 | 18 |
| Max. PV Array Voltage | 1000Vdc or 1500Vdc Optional | |||
| Rated Current for Each String (Replaceable) | 20A | 20A | 20A | 20A |
| Rated Output Current | 240A | 280A | 320A | 360A |
| Input cable waterproof connector | PG9 (4mm PV cable) | |||
| Output cable waterproof connector | PG21 | |||
| Output DC Circuit Breaker | Yes | |||
| PV special lightning protection module | Yes | |||
| Anti-reverse module protection | Optional | |||
| Communication interface (optional) | RS485 | |||
| Protection Degree | IP65 | |||
| Environment Temperature | －25～+60℃ | |||
| Environment Humidity | ＜90% No condensation | |||
| Altitude | ≤3000m | |||
| Installation | Indoor/outdoor (Wall mount) | |||
| Box material | Iron with powder coating | |||
Frequently Asked Questions
1. What is the protection rating of this PV combiner box?
The unit features an IP65 protection rating, making it suitable for both indoor and outdoor installations with excellent resistance to dust and water.
2. How many strings can this system accommodate?
The series supports 8-28 string inputs. Specific models listed include PVB-12 (12 strings) up to PVB-18 (18 strings) in a single cabinet.
3. What safety features are integrated into the box?
It includes standard DC surge protection, DC fuses, DC circuit breakers, and optional anti-reverse module protection for maximum operational safety.
4. Can it handle high-voltage PV systems?
Yes, it is designed for high-voltage systems, supporting a maximum PV array voltage of either 1000Vdc or 1500Vdc (optional).
5. How does the box manage heat dissipation?
The box features large 260x180x40mm heat sinks treated with black oxidation, ensuring reliable cooling and extending the lifespan of the internal modules.
6. What material is the enclosure made of?
The enclosure is constructed from high-quality iron with a durable powder coating, designed to withstand outdoor environmental conditions.
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