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Deye SUN-20K-SG05LP3-EU-SM2 Hybrid Inverter 20 kW Three-Phase
The Deye SUN-20K-SG05LP3-EU-SM2 is a three-phase 20 kW hybrid inverter from the top end of the low-voltage range: the usual pick for large houses, farms and small workshops that want to store energy in 48 V LiFePO4 batteries without moving to high voltage. Two MPP trackers rated 36 A each accept very large PV arrays, and the backup output keeps essential loads running through a blackout.
It offers two battery inputs and a very high charge and discharge current, so it makes full use of the high-capacity rack banks in the Litio Store catalogue with a CAN-communicating BMS. It supports up to 10 units in parallel on-grid and off-grid, AC coupling to retrofit an existing PV system, and charging from a diesel generator.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | SUN-20K-SG05LP3-EU-SM2 |
| Rated AC power | 20,000 W (20 kW) |
| Max AC apparent power | 22,000 VA |
| Grid and phase | Three-phase 220/380 V - 230/400 V (3L+N+PE), 0.85-1.1 Un, 50/60 Hz |
| Rated AC current | 30.4 A at 380 V / 29.0 A at 400 V |
| Max AC current | 33.4 A at 380 V / 31.9 A at 400 V |
| Off-grid peak power | 2 times the rated power for 10 s |
| Max continuous AC passthrough (grid to load) | 70 A |
| Max PV input power | 40,000 W |
| Max / rated PV voltage | 800 V / 550 V |
| MPPT voltage range / start-up | 160-650 V / 160 V |
| MPPTs and strings | 2 MPPTs, 2+2 strings |
| Max PV / short-circuit current | 36 + 36 A / 54 + 54 A |
| Supported battery | Lithium or lead-acid, 40-60 V (48 V nominal), charging self-adapting to the BMS |
| Max charge/discharge current | 350 A |
| Battery inputs | 2 |
| Max / euro / MPPT efficiency | 97.6% / 97.0% / > 99% |
| Harmonic distortion THDi | < 3% |
| Ingress protection and cooling | IP65, intelligent air cooling, noise < 60 dB |
| Communication | Wi-Fi, RS485, CAN for the BMS; optional GPRS/Bluetooth/4G/LAN monitoring |
| Dimensions (W x H x D) and weight | 456 x 750 x 268.5 mm, 51.9 kg |
| Operating temperature | -40 to +60 °C (derating above 45 °C), humidity 0-100% |
| Parallel operation | up to 10 units in parallel, on-grid and off-grid, with multiple batteries in parallel |
| Certifications and grid standards | CEI 0-21, EN 50549, VDE-AR-N 4105, G99, IEC 61727, IEC 62116, UNE 217002, NRS 097, IEC/EN 62109-1/2 |
| Warranty | 5 years, extendable up to 10 years |
Documentation
PDFDatasheet SUN-14/20K-SG05LP3-EU-SM2 (EN)Official manufacturer documentPDFDatasheet 2024 SUN-14/20K-SG05LP3-EU-SM2 (EN)Official manufacturer documentPDFManuale utente SUN-14/20K-SG05LP3-EU-SM2 (EN)Official manufacturer documentPDFDichiarazione di conformità UEOfficial manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.