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| Model | SUN-18K-G02 | SUN-20K-G02 | SUN-25K-G02 |
| Input Side | |||
| Max. DC Input Power(kW) | 21.6 | 26 | 32.5 |
| Max. DC Input Voltage (V) | 1000 | ||
| Start-up DC Input Voltage(V) | 250 | ||
| MPPT Operating Range(V) | 200~800 | ||
| Max. DC Input Current(A) | 22+22 | 25+25 | 30+30 |
| Number of MPPT/Strings per MPPT | 2/ 2+2 | 2 / 2 | 2 / 3 |
| Output Side | |||
| Rated Output Power(kW) | 18 | 20 | 25 |
| Max. Active Power(kW) | 19.8 | 22 | 27.5 |
| Rated AC Grid Voltage(V) | 230 / 400 | ||
| AC Grid Voltage Range(V) | 277Vac~460Vac(this may vary with grid standards) | ||
| Rated Grid Frequency(Hz) | 50 / 60 (Optional) | ||
| Operating Phase | Three phase | ||
| Rated AC Grid Output Current(A) | 26.1 | 29 | 36.2 |
| Max. AC Output Current(A) | 28.7 | 31.9 | 39.9 |
| Output Power Factor | 0.8 leading to 0.8 lagging | ||
| Grid Current THD | <2% | ||
| DC Injection Current(mA) | <0.5% | ||
| Grid Frequency Range | 47~52 or 57~62 (Optional) | ||
| Efficiency | |
| Max.Efficiency | 98.6% |
| Euro Efficiency | 97.8% |
| MPPT Efficiency | >99% |
| Protection | ||
| DC Reverse-Polarity Protection | Yes | |
| AC Short Circuit Protection | Yes | |
| AC Output Overcurrent Protection | Yes | |
| Output Overvoltage Protection | Yes | |
| Insulation Resistance Protection | Yes | |
| Ground Fault Monitoring | Yes | |
| Islanding Protection | Yes | |
| Temperature Protection | Yes | |
| Integrated DC Switch | Yes | |
| Remote software upload | Yes | |
| Remote change of operating parameters | Yes | |
| Surge protection | DC Type II / AC Type II | |
| General Data | |
| Size(mm) | 400W×520H×240.5D |
| Weight(kg) | 28 |
| Topology | Transformerless |
| Internal Consumption | <1W (Night) |
| Running Temperature | -25~65℃ |
| Ingress Protection | IP65 |
| Noise Emission(Typical) | <25dB |
| Cooling Concept | Natural cooling |
| Max. Operating Altitude Without Derating | 2000m |
| Designed Lifetime | >20 years |
| Grid Connection Standard | EN50549, IEC61727, VDE 0126-1-1, IEC62109-1-2 |
| Operating Surroundings Humidity | 0-100% |
| Safety EMC/Standard | IEC62109-1/-2, EN61000-6-1, EN61000-6-3 |
| Features | |
| DC Connection | MC-4 mateable |
| AC Connection | IP65 rated plug |
| Display | LCD 240 × 160 |
| Interface | RS485/RS232/Wifi/LAN |
