

12 In 1 Out PV DC Combiner Box
This 12-in-1-out PV combiner box integrates 12 independent PV strings into one single output circuit, suitable for medium and large centralized solar PV systems. Each string is equipped with a dedicated DC fuse for individual branch overcurrent and short-circuit protection. The main output circuit adopts DC MCB for overall system protection. Built-in Type II SPD effectively absorbs lightning surge and transient voltage risks. Adopting high-strength PC+ABS flame-retardant material, the enclosure supports IP65 waterproof, dustproof and UV-resistant performance for long-term outdoor use. Centralized wiring design simplifies on-site installation and later maintenance, widely applied in industrial and commercial solar projects and large-scale photovoltaic power stations.
Item | Specification |
Product Name | 12 In 1 Out PV DC Combiner Box |
Input / Output | 12 Strings Input, 1 String Output |
Max System Voltage | DC 1000V |
Single String Rated Current | 15A / 20A / 32A (Optional) |
Max Total Output Current | 300A |
Input Protection | Independent DC Fuse for each string |
Main Output Protection | 2P DC MCB |
Surge Protection Device | Type II DC SPD, Imax 40kA |
Enclosure Material | PC+ABS Flame Retardant, UV-proof |
Protection Level | IP65, IK09 |
Mounting Type | Wall-mounted, Outdoor Installation |
Working Temperature | -25℃ ~ +60℃ |
Executive Standard | IEC 60947, IEC 61643, CE Certified |
Application | C&I rooftop solar, centralized PV system, large-scale photovoltaic power station |




