PV Combiner Box | IP65 Waterproof Steel Solar Photovoltaic Junction Box
PV Combiner Box | IP65 Waterproof Steel Solar Photovoltaic Junction Box
Input Circuits：1-24 circuits
Output Circuits：1
Current DC： ±10A-32A per circuit
Voltage：Maximum voltage: 1000V
Short-circuit Response Time:0.01mS
Temperature & Humidity：Operating temperature: -25 ~ +60℃
Altitude：≤2000m
Enclosure Protection Rating：IP66
Input Circuits：1-24 circuits
Output Circuits：1
Current DC： ±10A-32A per circuit
Voltage：Maximum voltage: 1000V
Short-circuit Response Time:0.01mS
Temperature & Humidity：Operating temperature: -25 ~ +60℃
Altitude：≤2000m
Enclosure Protection Rating：IP66
1. Product Overview
2. Core Competitive Features
✅ IP65 Outdoor Waterproof & Dustproof Grade
Whole cabinet sealed silicone rubber gasket design, IP65 waterproof dustproof rating, stable long-term operation under rain, snow and dusty outdoor environment.
✅ Anti-Corrosion Thick Steel Cabinet Body
High-density cold rolled steel plate with double-layer electrostatic anti-rust spray coating, anti-oxidation, anti-corrosion, prolong service life under harsh outdoor climate.
✅ Integrated Multi-Layer PV Safety Protection
Built-in DC fuse overcurrent protection + lightning surge SPD protection, double safeguard against solar panel short-circuit, lightning strike and overload to protect PV modules and inverters.
✅ Lockable Safety Door with High Voltage Warning Mark
Metal lockable cabinet door, printed standard high-voltage lightning warning label, effectively prevent unauthorized opening and accidental electric shock hazards.
✅ Complete Multi-String Specification Options
Standard available string counts: 4 strings, 6 strings, 8 strings, 12 strings, covering small residential rooftop PV to medium commercial solar farm projects.
✅ Wall Mount Compact Installation Structure
Pre-reserved wall mounting holes on cabinet back panel, simple wall-fixed installation without complicated support frames, save solar project construction time and cost.
✅ Customizable Internal Layout & OEM Printing
Support customized internal component layout, DC breaker configuration, silk-screen private brand logo and cabinet size adjustment for regional solar market demands.
✅ Factory Spot Stock & Bulk Export Support
Direct factory supply without middle markup, abundant ready stock for fast shipment, tiered preferential pricing for large solar farm project export orders.
3. Main Product Specifications
| Item | Technical Parameter |
|---|---|
| Product Name | PV Combiner Box / Solar Photovoltaic Combiner Cabinet |
| Cabinet Material | Thick Cold Rolled Steel Plate, Anti-Rust Electrostatic Spray Coating |
| Outdoor Protection Grade | IP65 Waterproof & Dustproof |
| Standard String Configurations | 4 String / 6 String / 8 String / 12 String (Custom string quantity available) |
| Built-in Protection Modules | DC Fuse Overcurrent Protection, SPD Lightning Surge Protection |
| Installation Method | Outdoor Wall Mount Fixed Installation |
| Safety Design | Lockable Metal Door, Standard High-Voltage Lightning Warning Label |
| Applicable System | On-grid / Off-grid solar photovoltaic power generation systems |
| Typical Application | Residential rooftop solar, commercial solar farm, agricultural PV irrigation system |
| Service Support | Factory wholesale, OEM logo printing, customized internal layout, export wooden case packaging |
4. Wide Application Scenarios
- Residential rooftop on-grid solar photovoltaic power systems
- Commercial factory rooftop large solar power stations
- Off-grid agricultural solar irrigation water pump PV systems
- Rural independent off-grid solar power supply projects
- Small industrial distributed photovoltaic power generation stations
- Mountain remote area solar energy storage power systems
- Commercial shopping mall and school rooftop PV combiner distribution
5. Installation & Operation Guide
- Select a shaded, ventilated outdoor wall position, fix the PV combiner box firmly with expansion bolts through the back reserved mounting holes.
- Open the lockable cabinet door, route each solar panel string positive/negative DC cables into corresponding string wiring terminals.
- Connect the unified main DC output cable from combiner box to the DC input port of solar inverter.
- Check all fuse and SPD surge protection modules are correctly installed, close and lock the cabinet door after wiring completion.
- When lightning surge or string short-circuit fault occurs, internal fuse or SPD will trigger protection to cut off faulty circuit automatically.
- Conduct regular quarterly inspection of fuse and surge protection modules, replace damaged components in time to maintain PV system safety.
6. Frequently Asked Questions (FAQ)
Q1: What is the function of PV combiner box in solar systems?
Q2: Can this PV combiner box be installed outdoors under rain exposure?
Q3: What string quantity options do you provide for PV combiner boxes?
Q4: What safety protection devices are built inside the solar combiner box?
Q5: Do you accept OEM customized PV combiner boxes for solar export bulk orders?
7. Factory Wholesale Advantages
- Original PV combiner box production factory without intermediate distributors, competitive ex-factory price for large solar farm overseas export orders.
- Every finished cabinet undergoes IP65 waterproof sealing test and high voltage withstand inspection before delivery to guarantee stable outdoor performance.
- Professional solar engineering technical team provides string quantity selection, wiring guidance and project matching technical support for PV power station projects.
- Stable mass production capacity with short delivery lead time, shockproof wooden export packaging to avoid cabinet deformation and damage during ocean transportation.
- Flexible OEM customization service including cabinet size adjustment, internal component layout modification and brand logo silk printing to meet different regional solar market standards.
1. Product Overview
2. Core Competitive Features
✅ IP65 Outdoor Waterproof & Dustproof Grade
Whole cabinet sealed silicone rubber gasket design, IP65 waterproof dustproof rating, stable long-term operation under rain, snow and dusty outdoor environment.
✅ Anti-Corrosion Thick Steel Cabinet Body
High-density cold rolled steel plate with double-layer electrostatic anti-rust spray coating, anti-oxidation, anti-corrosion, prolong service life under harsh outdoor climate.
✅ Integrated Multi-Layer PV Safety Protection
Built-in DC fuse overcurrent protection + lightning surge SPD protection, double safeguard against solar panel short-circuit, lightning strike and overload to protect PV modules and inverters.
✅ Lockable Safety Door with High Voltage Warning Mark
Metal lockable cabinet door, printed standard high-voltage lightning warning label, effectively prevent unauthorized opening and accidental electric shock hazards.
✅ Complete Multi-String Specification Options
Standard available string counts: 4 strings, 6 strings, 8 strings, 12 strings, covering small residential rooftop PV to medium commercial solar farm projects.
✅ Wall Mount Compact Installation Structure
Pre-reserved wall mounting holes on cabinet back panel, simple wall-fixed installation without complicated support frames, save solar project construction time and cost.
✅ Customizable Internal Layout & OEM Printing
Support customized internal component layout, DC breaker configuration, silk-screen private brand logo and cabinet size adjustment for regional solar market demands.
✅ Factory Spot Stock & Bulk Export Support
Direct factory supply without middle markup, abundant ready stock for fast shipment, tiered preferential pricing for large solar farm project export orders.
3. Main Product Specifications
| Item | Technical Parameter |
|---|---|
| Product Name | PV Combiner Box / Solar Photovoltaic Combiner Cabinet |
| Cabinet Material | Thick Cold Rolled Steel Plate, Anti-Rust Electrostatic Spray Coating |
| Outdoor Protection Grade | IP65 Waterproof & Dustproof |
| Standard String Configurations | 4 String / 6 String / 8 String / 12 String (Custom string quantity available) |
| Built-in Protection Modules | DC Fuse Overcurrent Protection, SPD Lightning Surge Protection |
| Installation Method | Outdoor Wall Mount Fixed Installation |
| Safety Design | Lockable Metal Door, Standard High-Voltage Lightning Warning Label |
| Applicable System | On-grid / Off-grid solar photovoltaic power generation systems |
| Typical Application | Residential rooftop solar, commercial solar farm, agricultural PV irrigation system |
| Service Support | Factory wholesale, OEM logo printing, customized internal layout, export wooden case packaging |
4. Wide Application Scenarios
- Residential rooftop on-grid solar photovoltaic power systems
- Commercial factory rooftop large solar power stations
- Off-grid agricultural solar irrigation water pump PV systems
- Rural independent off-grid solar power supply projects
- Small industrial distributed photovoltaic power generation stations
- Mountain remote area solar energy storage power systems
- Commercial shopping mall and school rooftop PV combiner distribution
5. Installation & Operation Guide
- Select a shaded, ventilated outdoor wall position, fix the PV combiner box firmly with expansion bolts through the back reserved mounting holes.
- Open the lockable cabinet door, route each solar panel string positive/negative DC cables into corresponding string wiring terminals.
- Connect the unified main DC output cable from combiner box to the DC input port of solar inverter.
- Check all fuse and SPD surge protection modules are correctly installed, close and lock the cabinet door after wiring completion.
- When lightning surge or string short-circuit fault occurs, internal fuse or SPD will trigger protection to cut off faulty circuit automatically.
- Conduct regular quarterly inspection of fuse and surge protection modules, replace damaged components in time to maintain PV system safety.
6. Frequently Asked Questions (FAQ)
Q1: What is the function of PV combiner box in solar systems?
Q2: Can this PV combiner box be installed outdoors under rain exposure?
Q3: What string quantity options do you provide for PV combiner boxes?
Q4: What safety protection devices are built inside the solar combiner box?
Q5: Do you accept OEM customized PV combiner boxes for solar export bulk orders?
7. Factory Wholesale Advantages
- Original PV combiner box production factory without intermediate distributors, competitive ex-factory price for large solar farm overseas export orders.
- Every finished cabinet undergoes IP65 waterproof sealing test and high voltage withstand inspection before delivery to guarantee stable outdoor performance.
- Professional solar engineering technical team provides string quantity selection, wiring guidance and project matching technical support for PV power station projects.
- Stable mass production capacity with short delivery lead time, shockproof wooden export packaging to avoid cabinet deformation and damage during ocean transportation.
- Flexible OEM customization service including cabinet size adjustment, internal component layout modification and brand logo silk printing to meet different regional solar market standards.
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