Deye
Deye SUN-18K-G04 String Inverter 18 kW Three-Phase 2 MPPT CEI 0-21 IP65
Deye SUN-18K-G04 String Inverter 18 kW Three-Phase 2 MPPT CEI 0-21 IP65
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Businesses and non-Italian private customers: purchase with 22% VAT. The 10% rate is reserved for private customers resident in Italy — find out more.
Foreign companies entitled to 0% VAT: please write to info@litio.store.
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Deye SUN-18K-G04 String Inverter 18 kW Three-Phase 2 MPPT CEI 0-21 IP65
The Deye SUN-18K-G04 string inverter is a three-phase 18 kW grid-tie unit suited to warehouses, farms, apartment blocks and commercial users with a three-phase meter. It has 2 MPPTs with three strings each and up to 26 A per tracker, so large-format half-cell modules fit without derating the inputs; the 200-850 V MPPT range and 1000 V maximum voltage leave freedom in string sizing up to 23.4 kW of PV power.
Maximum efficiency is 98.6% (97.8% European), noise stays below 40 dB and night consumption below 1 W. An IP65 enclosure, smart cooling and a weight of 20.8 kg allow wall mounting outdoors too. It is declared compliant with CEI 0-21, EN 50549-1 and VDE-AR-N 4105 and integrates with Deye loggers and meters for zero export and with the SUN-XL02 optimisers on shaded roofs.
Key features
2 MPPTs at 26 AThree strings per tracker and up to 26 A of current: large-format modules fit without limiting the input.
98.6% efficiencyMaximum efficiency of 98.6%, European 97.8%, with night self-consumption below 1 W.
Quieter than 40 dBSmart cooling and noise below 40 dB: it can be installed close to occupied rooms.
CEI 0-21 compliantDeclared compliance with CEI 0-21, EN 50549-1, VDE-AR-N 4105 and G98/G99, with an IP65 enclosure for outdoor use.
Technical specifications
| Feature | Value |
|---|---|
| Product code | SUN-18K-G04 |
| Rated AC output power | 18 kW |
| Max. active power | 19.8 kW |
| Max. PV input power | 23.4 kW |
| MPP trackers / strings per tracker | 2 / 3 |
| Max. PV input voltage | 1000 V |
| Start-up voltage | 200 V |
| MPPT voltage range | 200-850 V |
| Max. PV input current per MPPT | 26 A |
| Rated grid voltage and connection | 220/380 V or 230/400 V three-phase, 3L/N/PE |
| Rated grid frequency | 50 / 60 Hz |
| Rated / max. AC output current | 27.3 A / 30 A (at 380 V); 26.1 A / 28.7 A (at 400 V) |
| Max. / European efficiency | 98.6% / 97.8% |
| Grid current THDi | < 3% |
| Power factor range | 0.8 leading to 0.8 lagging |
| Protection degree / cooling | IP65 / smart cooling |
| Noise emission | < 40 dB |
| Night self-consumption | < 1 W |
| Display and communication | LCD 1602; RS485/RS232, Wi-Fi or LAN |
| Dimensions (W×H×D) | 330×508×206 mm |
| Weight | 20.8 kg |
| Operating temperature | -25...+65 °C |
| Topology | transformerless |
| Grid and safety standards | CEI 0-21, EN 50549-1, VDE-AR-N 4105, VDE 0126, G98/G99, AS/NZS 4777.2, IEC 61727, IEC 62116 |
| Designed lifetime | > 20 years |
Documentation
PDFManuale utente Deye SUN-(18-25)K-G04Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.