PV Combiner Box vs. DC Junction Box: What’s the Difference?
Key Differences
| Feature | PV Combiner Box | DC Junction Box |
|---|---|---|
| Function | Combines PV strings | Connects wires only |
| Protection | Fuses, SPD, switches | Minimal |
| Monitoring | Often included | No |
When to Use Each
Use PV combiner boxes in larger, multi-string installations. Use junction boxes for simple, low-power connections.
Conclusion
Knowing which box to use can prevent costly errors and maximize your system’s performance and safety.
