Sungrow SG250HX Three-Phase Solar Inverter | 250 kW
Modelo: SG250HX- Sku: SUNGINV026
- Vendor: Sungrow
Specifications
Product description
The Sungrow SG250HX Three-Phase Solar Inverter | 250 kW is a next-generation string inverter for large-scale photovoltaic plants. Designed to operate at 1500 Vdc and three-phase output at 800 Vac, it offers outstanding conversion with a maximum efficiency of 99% and optimized electronics to reduce internal losses. Its 12 independent MPPT (24 strings in total) allow segmentation of the generator by roof sections, orientations, or module types—including bifacial—improving actual performance against partial shading and mismatches. With an IP66 enclosure and C5 corrosion class, AFCI protection, and Type II SPD on DC and AC, the SG250HX is ready to operate reliably in industrial environments and coastal areas, maintaining stable production throughout its service life. It incorporates advanced grid functions (LVRT/HVRT, Q at night, P/Q control and ramps), intelligent I-V curve diagnostics, and remote firmware updates, which simplifies O&M and reduces site visits.
Main features
- 1500 Vdc platform with 12 MPPT and 24 inputs (2 per MPPT) for maximum design flexibility.
- Max. efficiency 99% (European 98.8%) and very low internal losses for more billable kWh.
- Comprehensive safety: AFCI, Type II SPD on DC/AC, anti-islanding, ground fault monitoring, DC reversal, and PID Recovery/Anti-PID.
- Industrial grade: IP66, C5 resistance, intelligent forced ventilation, and operation from −30 °C to 60 °C.
- Smart O&M: I-V curve scan/diagnosis, guided commissioning, grid logs, and OTA updates.
- Professional connectivity: RS485 as standard and PLC (optional) for robust long-distance communications.
Advantages or benefits
- Higher annual yield by optimizing each PV field area with 12 MPPT and a wide tracking range.
- High availability thanks to active protections, fuse-free design with string-level measurement, and forced cooling.
- Lower BOS cost: 2-in-1 DC input, AC terminals for aluminum/copper up to 300 mm², and compatibility with medium voltage transformer.
- Predictive maintenance via I-V curve and intelligent alarms that detect issues before impacting production.
- Grid integration: active/reactive power control, Q at night, and LVRT/HVRT support to comply with grid codes.
Purpose or applications
Designed for large rooftop or ground-mounted plants, photovoltaic parks, agro-industry, and industrial self-consumption at 800 Vac with medium voltage transformer. Ideal when long strings at 1500 V, high-current bifacial modules, and multi-MPPT architecture for multi-pitched roofs are required.
Technical specifications
| Nominal AC power | 250 kVA @ 30 °C (225 kVA @ 40 °C; 200 kVA @ 50 °C) |
| Max. AC current | 180.5 A |
| Nominal AC voltage | 800 Vac (3/PE) |
| AC voltage range | 680–880 Vac |
| Frequency | 50/60 Hz (45–55 Hz / 55–65 Hz) |
| THD / DC injection | < 3 % / < 0.5 % In |
| Power factor | > 0.99 (adjustable 0.8 cap.–0.8 ind.) |
| Max. PV voltage | 1500 Vdc |
| Vmin / Start-up / DC Vnom | 600 V / 600 V / 1160 V |
| MPPT range | 600–1500 V (860–1300 V at rated power) |
| MPPT / Strings | 12 MPPT / 24 strings (2 per MPPT) |
| Max. input current / Max. Isc | 26 A × 12 / 50 A × 12 |
| Max. / European efficiency | 99,0 % / 98,8 % |
| Protections | AFCI, Type II SPD DC/AC, anti-islanding, earth leakage, DC reverse, Q-night, PID Recovery |
| Rating / Corrosion | IP66 / C5 |
| Cooling | Intelligent forced ventilation |
| Altitude / Operating Temp. | up to 5000 m (derating > 4000 m) / −30 to 60 °C |
| Communications | RS485; optional PLC; LED + Bluetooth + App |
| DC / AC Connection | MC4-Evo2 (≤ 6 mm², opt. 10 mm²) / OT-DT (≤ 300 mm²) |
| Dimensions / Weight | 1051 × 660 × 363 mm / 99 kg |
| Certifications | IEC 62109, EN 50549, VDE-AR-N 4110/4120, UNE 206007-1, P.O.12.3, etc. |
Compatibilities
Compatible with 1500 Vdc monofacial and bifacial modules, smart logger and iSolarCloud monitoring platform, grid meters for export control, MV transformers, and DC/AC protection panels with Type II SPD. Use MC4-Evo2 connectors on strings close to 1500 Vdc.
The Sungrow SG250HX Three-Phase Solar Inverter | 250 kW is a high-power professional solution that combines 99% efficiency, industrial safety, and intelligent O&M to maximize performance and availability in demanding photovoltaic projects.
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Sungrow SG250HX Three-Phase Solar Inverter | 250 kW
