Deye SUN-18/20/21K-G04-LV
18kW three phase LV string inverter with 98.6% efficiency for 127V/220V grids.
Technical Specifications
| Parameter | DEYE-SUN-18K-G04-LV | DEYE-SUN-20K-G04-LV | DEYE-SUN-21K-G04-LV |
|---|---|---|---|
| Additional Specifications | |||
| Arc fault circuit interrupter (AFCI) | Optional | ||
| DC Injection Current | <0.5%In | ||
| MPPT Voltage Range(V) | 200-700 | ||
| Max. Input Short Circuit Current (A) | 60+60 | ||
| Max. Operating PV Input Current(A) | 40+40 | ||
| Max. PV Input Voltage(V) | 800 | ||
| PV Input Voltage Range(V) | 250-800 | ||
| Rated PV Input Voltage(V) | 350 | ||
| Max. Output Overcurrent Protection | 93.3 A | 115.1 A | 115.1 A |
| No. of Strings MPP Tracker | 3+3 | ||
| No. of MPP Trackers/ No. of Strings MPP Tracker | 2/3+3 | ||
| Communication Interface | RS485/RS232 | ||
| Grid Connection Form | 3L+N+PE | ||
| Grid Regulation | NBR 16149, NBR 16150, EN 50549, RD 140 | ||
| Inverter Topology | Non-Isolated | ||
| Max. Inverter Backfeed Current To the Array | 0 | ||
| Monitor Mode | GPRS/WIFI/Bluetooth/4G/LAN(optional) | ||
| Over Voltage Category | OVC II(DC),OVC III(AC) | ||
| Residual Current Detection | yes | ||
| Safety EMC/Standard | IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 | ||
| LCD/LED display | LCD1602 | ||
| Max PV Voltage | 800 V | ||
| DC Component Monitoring | yes | ||
| Type Of Cooling | Intelligent air cooling | ||
| Ingress Protection(IP) Rating | IP 65 | ||
| Noise | ≤ 60 dB | ||
| Operating Temperature Range | -25 to +60℃,>45℃ derating °C | ||
| Permissible Altitude | 4000 m | ||
| Permissible Ambient Humidity | 0-100% | ||
| Electrical / AC Output Data | |||
| Full Load MPPT Voltage Range(V) | 250-700 | 300-700 | 300-700 |
| Max. Output Fault Current (A) | 90.4 | 100.4 | 105.4 |
| Max. Output Overcurrent Protection (A) | | 93.3 | 115.1 | 115.1 |
| Max. PV Input Power(kW) | 27 | 30 | 31.5 |
| Max.AC Output Apparent Power(KVA) | 18 | 20 | 21 |
| Max.AC Output Current(A) | 47.3/45.2 | 52.5/50.2 | 55.2/52.7 |
| Rated AC Output Active Power(kW) | 18 | 20 | 21 |
| Rated Output voltage/range (V) | 127V/ | 220V, 133V/230V 0.85Un- | 1.1Un |
| AC Grid Connection Type | String Inverter | ||
| European Efficiency | 98.1% | ||
| Max.AC Output Apparent Power | 18 kVA | 20 kVA | 21 kVA |
| Max.AC Output Current | 47.3/45.2 A | 52.5/50.2 A | 55.2/52.7 A |
| Max Efficiency | 98.6% | ||
| Adjustable Power Factor Range | 0.8 leading-0.8lagging | ||
| Rated AC Output Current | 47.3/45.2 A | 52.5/50.2 A | 55.2/52.7 A |
| Grid / AC Frequency | 50Hz/45Hz-55Hz, 60Hz/55Hz-65 | ||
| Output Voltage Range | 127V/220V, 133V/230V 0.85Un-1.1Un | ||
| THD / THDi | <3% | ||
| Rated AC Power | 18 kW | 20 kW | 21 kW |
| Nominal AC Voltage | 127V/220V, 133V/230V | ||
| Electrical Data | |||
| Rated AC Output current (A) | 47.3/45.2 | 52.5/50.2 | 55.2/52.7 |
| Start-up Voltage(V) | 250 | ||
| PV Input Voltage Range | 250-800 V | ||
| Full Load MPPT Voltage Range | 250-700 V | 300-700 V | 300-700 V |
| Max. Output Fault Current | 90.4 A | 100.4 A | 105.4 A |
| Rated AC Output Active Power | 18 kW | 20 kW | 21 kW |
| Protection Features | |||
| Anti-Islanding Protection | yes | ||
| AC/DC Surge Protection | TYPE II(DC),TYPE II(AC) | ||
| Over-Temperature / Thermal Protection | yes | ||
| IP Rating | IP65 | ||
| PV String Input Data | |||
| MPPT Efficiency | >99% | ||
| MPPT Voltage Range | 200-700 V | ||
| Max. Input Short Circuit Current | 60+60 A | ||
| Max. Operating PV Input Current | 40+40 A | ||
| Max. PV Input Power | 27 kW | 30 kW | 31.5 kW |
| Max. PV Input Voltage | 800 V | ||
| Rated PV Input Voltage | 350 V | ||
| Start-up Voltage | 250 V | ||
| Number of MPP Trackers | 2 | ||
| Operating Conditions | |||
| Operating Temperature | -25 to 65 °C | ||
| Max Altitude | 2,000 m | ||
Figures are measured at the test conditions the manufacturer’s datasheet states. A dash means the manufacturer publishes no figure for that model.
Availability & grid compliance in Sudan
| Market | Sudan |
| Grid authority / regulator | Sudanese Electricity Distribution Company (SEDC), Ministry of Energy and Petroleum |
| Quotation currency | SDG |
| Support hours timezone | Africa/Khartoum |
| Delivery & installation coverage | Khartoum, Omdurman, Port Sudan, Kassala, Nyala |
Figures on this page are the manufacturer's own, measured at the test conditions the datasheet states — they do not change by country. What changes is the approval that has to be met before the unit is energised: in Sudan that is Sudanese Electricity Distribution Company (SEDC), Ministry of Energy and Petroleum. Confirm the grid code, import requirements and any local certification with them, or with us, before you order.
Key Features & Technical Highlights
- 98.6% Efficiency: Maximum energy conversion
- Dual MPPT: Two independent trackers
- LV Compatible: 127V/220V, 133V/230V grids
- Zero Export & VSG: Self-consumption & grid support
- Anti-PID: Prevents panel degradation
- Smart Monitoring: Optional string monitoring
Frequently Asked Questions
Is the DEYE SUN-18K-G04-LV suitable for the Middle East climate?
Yes. DEYE inverters are rated for high ambient temperatures and dusty conditions common across the Gulf, North Africa and the wider MEA region, with IP-rated enclosures for outdoor installation in shaded areas.
What voltage systems is this compatible with?
The SUN-18K-G04-LV is specifically designed for low-voltage grids, supporting 127V/220V and 133V/230V systems.
Does it support Anti-PID?
Yes! The optional Anti-PID function helps prevent power degradation caused by Potential Induced Degradation in PV modules.