Deye GB-S20K-EU Hybrid Inverter 20kW Three-Phase High Voltage All-in-One
The Deye GB-S20K-EU is the 20kW three-phase hybrid inverter of the Deye high-voltage all-in-one storage system: it handles up to 26kW of PV on 2 MPPTs and a high-voltage battery pack in the 160-700V range, built from stackable Deye GB-LM4.0 modules of 4.09kWh. It is the answer for three-phase homes, shops and small businesses looking for self-consumption, storage and backup in a single cabinet.
The high-voltage architecture lowers currents and therefore cable losses: peak efficiency is 97.6% with 99.9% MPPT efficiency. A generator input and unbalanced-output handling also suit weak grids, while CAN communication with the BMS and CEI 0-21 compliance simplify installation in Italy. Monitoring runs through the Deye DL1000B data loggers on Deye Cloud.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | GB-S20K-EU |
| Rated AC output power | 20kW |
| Max. AC output power | 22kW |
| Max. PV input power | 26kW |
| Max. PV input voltage | 1000V |
| MPPT voltage range | 150-850V (full load 500-850V) |
| No. of MPPT and strings | 2 MPPT, 2+2 strings |
| PV input current per MPPT | 26+26A |
| Max. PV short circuit current | 39+39A |
| Rated / max. AC output current | 30.4/29A / 33.4/31.9A |
| Grid type | three phase 220/380V, 50/60Hz |
| Power factor range | 0.8 leading to 0.8 lagging |
| Battery type | high-voltage lithium, Deye GB-LM4.0 modules of 4.09kWh |
| Battery voltage range | 160-700V |
| Max. charge / discharge current | 37A |
| Generator input current | 30.4/80/30.4A |
| Max. unbalanced output current | 35A |
| Max. efficiency | 97.6% |
| Euro efficiency | 97% |
| MPPT efficiency | 99.9% |
| Communication | CAN to the battery BMS |
| Cooling | free / smart cooling |
| Dimensions and weight | 540×385×450 mm - 39.8 kg |
| Humidity and altitude | 5-85% RH, altitude ≤ 2000 m |
| Operating temperature | derating above 45 °C |
| Certifications | CEI 0-21, VDE-AR-N 4105, IEC 61727/62116, G98/G99, NRS 097 |
| Warranty | 5 years |
Documentation
PDFDatasheet all-in-one HV serie GB-SOfficial manufacturer documentPDFGB-S EU declaration of conformityOfficial manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.