SG320HX
The Sungrow SG320HX is a robust 320 kW multi-MPPT string inverter engineered for utility-scale solar projects across West Africa and the Sahel, delivering exceptional 99.02% peak efficiency in high-irradiance environments. With 16 independent MPPT inputs and advanced smart monitoring capabilities, it maximizes energy harvest from large solar arrays in remote and off-grid rural electrification initiatives across ECOWAS regions. Its IP66 protection and C5 anti-corrosion rating ensure reliable performance in dusty, corrosive conditions typical of Mauritania and West African climates, while fuse-free string monitoring reduces maintenance demands in challenging locations. Ideal for microgrids and energy independence projects requiring dependable, high-temperature-resistant inverter technology for sustainable energy access.
Key Features
- ✓Up to 16 independent MPPTs with 40A input current, compatible with 500 Wp+ modules
- ✓Industry-leading 99.02% maximum efficiency and 98.8% European efficiency
- ✓DC 2-in-1 connection with fuse-free design and smart string current monitoring
- ✓PLC communication support to reduce cabling costs
- ✓Touch-free commissioning, remote firmware upgrade, and IV curve scanning
- ✓IP66 protection degree with C5 anti-corrosion grade for harsh environments
- ✓Type II SPD for both DC and AC sides ensuring robust surge protection
- ✓Reactive power (Q at night), LVRT/HVRT, and active/reactive power control support
Technical Specifications
| Type | SG320HX Multi-MPPT String Inverter |
| Brand | Sungrow |
| Phase | 3-phase / 3-wire + PE |
| Weight | ≤116 kg |
| Topology | Transformerless |
| Application | Utility-scale ground-mount PV |
| Power Range | 320 kW |
| DC Connector | MC4-Evo2 (Max. 6 mm², optional 10 mm²) |
| Communication | RS485 / PLC, Bluetooth + APP |
| Certifications | IEC 62109, IEC 61727, IEC 62116, IEC 60068, IEC 61683, EN 50549-1/2, UNE 206007-1:2013, UTE C15-712-1:2013 |
| Cooling Method | Smart forced air cooling |
| Grid Connection | OT/DT terminal (Max. 400 mm²) |
| Number of MPPTs | 12 (optional: 16) |
| AC Surge Arrester | Type II |
| DC Surge Arrester | Type II |
| Protection Degree | IP66 |
| Relative Humidity | 0 – 100% |
| Max. Input Voltage | 1500 V |
| Max. Output Current | 254 A |
| Max. Current per MPPT | 40 A (Optional: 30 A for 16 MPPT inputs) |
| Nominal Input Voltage | 1080 V |
| Dimensions (W x H x D) | 1136 x 870 x 361 mm |
| Max. AC Apparent Power | 352 kVA @ 30°C / 320 kVA @ 40°C / 295 kVA @ 50°C |
| Nominal Output Voltage | 800 V (3/PE), range: 640–920 V |
| Nominal AC Active Power | 320 kW |
| Rated AC Grid Frequency | 50 Hz / 60 Hz |
| Anti-corrosion Protection | C5 |
| Nighttime Power Consumption | < 6 W |
| Operating Temperature Range | -30 to 60°C |
| MPPT Operating Voltage Range | 500 V – 1500 V |
| Adjustable Power Factor Range | 0.8 leading – 0.8 lagging |
| Max. Total Harmonic Distortion | < 3% (at nominal power) |
| Max. Short Circuit Current per MPPT | 60 A |
| Max. Operating Altitude without Derating | 3000 m (up to 4000 m with derating) |