Central Junction

Consolidates multi-string solar arrays, safe connection to inverter.

Comprehensive Protection

DC disconnect, fuses, busbars, overcurrent protection, complete monitoring.

International Standard

IEC 61439, 1500V rated, TUV certified, industrial safety grade.

Modular Design

4-32 string inputs, flexible configuration, easy maintenance and upgrade.

Applications of PV Array Combiner Box Junction

Safe connection solution for large-scale solar systems

Solar Farms

Connect dozens of arrays, safe consolidation, complete system protection.

Large Industrial Rooftops

Factories, industrial zones, 20-100+ kW, efficient current management.

Hybrid Systems

Connect solar to hybrid inverter, storage, optimize energy management.

Detailed Technical Specifications

Specification Value
Product Type PV Array Combiner Box / Junction Box
String Input Quantity 4 / 8 / 16 / 32 (Modular options)
Rated Voltage 1500V DC
Rated Current 16A – 125A (per string input)
Output Current 32A – 400A (per configuration)
System Power 20 kW – 600 kW+
Standard IEC 61439, IEC 62923, EN 60950
Protection Devices DC fuses, DC disconnect, SPD, Busbars
Fuses PV fuses 10A-63A, per-string protection
DC Disconnect Main DC disconnect 125A, safe lockout
SPD (Surge Protection) Type II, lightning & overvoltage protection
Busbars Copper cross-section busbars, reduced losses
Dimensions (L×W×H) ~800-1200 × 600-800 × 300-400 mm
Weight ~30-80 kg (per module)
Enclosure Material Powder-coated steel, corrosion-resistant
IP Rating IP54 / IP66 (per installation requirement)
Operating Temperature -40°C to +70°C
Operating Humidity <95% (Non-condensing)
Monitoring & Measurement DC voltage, current meters (optional)
DC Connections MC4 connectors, 10-50mm² cables
Warranty 10-15 years
Certification CE, IEC 61439, TUV, ISO 9001

Outstanding Advantages

Absolute Safety

Per-string fuses, main DC disconnect, SPD lightning protection, no weaknesses.

Optimal Current Management

Copper cross-section busbars, reduced thermal losses, 2-3% efficiency boost.

Easy Maintenance

Modular design, integrated voltage/current meters, straightforward maintenance.

Flexible Scaling

4-32 string modular, 20kW to 600kW+, easy upgrade as needs grow.