Sungrow SG20RT Three-Phase Solar Inverter | 20 kW
Modelo: SG20RT- Sku: SUNGINV021
- Vendor: Sungrow
Specifications
Product Description
The Sungrow SG20RT Three-Phase Solar Inverter | 20 kW is a high-performance solution for three-phase projects that require more power without compromising safety or control. With dual MPPT, a wide operating range, and optimized electronics, it provides efficient conversion even on roofs with different orientations. Its IP65 enclosure with C5 resistance makes it suitable for outdoor and coastal areas, while its connectivity ecosystem (WiFi/Ethernet/RS485) and iSolarCloud enable guided commissioning, I-V diagnostics, and OTA updates.
Main Features
- Nominal AC power: 20 kW three-phase (3/N/PE, 230/400 V) with export control and adjustable power factor.
- PV platform at 1000 Vdc: maximum input voltage 1100 V; MPPT range 160–1000 V; start-up voltage ≈180 V.
- 2 independent MPPT / 2 strings (typical), max. input 50 A (25/25 A) and max. Isc 64 A (32/32 A).
- Maximum reference efficiency of 98.5% (European ~98.1%) for more usable kWh.
- Advanced protection: AFCI, anti-islanding, SPD Type II on DC and AC, DC reversal, leakage and overvoltage, plus integrated PID Recovery function.
- Professional installation and O&M: push-in connectors, “plug & play” AC, iSolarCloud with I-V curve analysis and remote updates.
Advantages or Benefits
- Higher annual yield and design flexibility with two MPPT and wide working range suitable for bifacial modules.
- Superior availability and lower risk thanks to AFCI and SPD II on DC/AC that mitigate arcs and overvoltages.
- Lower operating costs due to 24/7 monitoring, smart alarms, and OTA firmware.
- Easy integration into existing electrical panels and possibility of zero export with Sungrow meter.
- Stable operation with intelligent forced cooling and typical noise level of 45 dB.
Purpose or Applications
Ideal for three-phase self-consumption in SMEs, businesses, workshops, farms, and homes with high demand (heat pump, swimming pool, EV chargers). Perfect for multi-pitched roofs or installations with partial shading thanks to its 2 MPPT.
Technical Specifications
| Nominal AC power | 20 kW |
| Recommended PV power | ≈30 kWp |
| Max. PV voltage | 1100 Vdc |
| MPPT range | 160–1000 V |
| Start-up voltage | ≈180 V |
| No. of MPPT / strings | 2 / 2 (typical) |
| Imax input / Isc max. | 50 A (25/25 A) / 64 A (32/32 A) |
| Max. apparent AC power | 22 kVA (local limitations may apply) |
| Max. AC output current | 31.9 A |
| Max. / European efficiency | 98.5% / ~98.1% |
| AC connection | 3/N/PE, 220/380–240/415 V; 50/60 Hz |
| THD / PF | <3% / >0.99 (adjustable 0.8 lead–0.8 lag) |
| Protections | AFCI, anti-islanding, SPD II DC/AC, DC reversal, leakage, overvoltage |
| Degree / corrosion | IP65 / C5 |
| Dimensions / Weight | 370 × 480 × 195 mm / 21 kg |
| Cooling / Noise | Intelligent forced / 45 dB(A) |
| Altitude / Temperature | Up to 4000 m (derating >2000 m) / −25 to 60 °C |
| Communications | WLAN, Ethernet, RS485, DI/DO |
| Connectors | MC4 (use MC4-Evo2 if the system may exceed 1000 Vdc) |
| Topology | Transformerless |
Compatibilities
Compatible with iSolarCloud, Smart Meter Sungrow for export control, DC/AC protection panels with SPD II, and monofacial or bifacial modules of 1000 Vdc. Integrable with existing consumption monitoring systems and EV chargers.
The Sungrow SG20RT Three-Phase Solar Inverter | 20 kW combines power, efficiency, and advanced protections for demanding three-phase projects, ensuring stable and highly available self-consumption.
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Sungrow SG20RT Three-Phase Solar Inverter | 20 kW
