G04 family view shared by the 40 / 50 kW configurations.
Supplier-reference photography. Confirm the final equipment appearance and included accessories with your quotation.
Technical reference SUN-40K-G04
A three-tracker string configuration for grid-connected commercial rooftops. It converts daytime solar generation without battery-backup functionality; electrical string design and local connection requirements remain project-specific.
Configuration, availability, certification scope and commercial terms are confirmed at quotation.
Values below follow the referenced model or explicitly stated model family. Review the final datasheet, rated conditions and supply scope before procurement.
Deye — official commercial string inverter specifications
Reference model: SUN-40K-G04
Reviewed: 2026-10-15
Grid-connected inverter; it does not independently supply outage backup. Optional functions must be ordered.
| Rated AC output | 40 kW |
|---|---|
| Max. AC apparent power | 44 kVA |
| Nominal AC voltage | 220 / 380 V or 230 / 400 V |
| Grid frequency | 50 / 60 Hz |
| Max. PV input power | 52 kW |
| Max. PV input voltage | 1,100 V |
| MPPT voltage range | 200–1,000 V |
| MPPT / strings per tracker | 3 / 3+3+3 |
| Max. conversion efficiency | 98.7% |
| Euro efficiency | 98.1% |
| Ingress protection | IP65 |
| Communication | RS485 / RS232 |
| Dimensions (W × H × D) | 434 × 570 × 243 mm |
| Weight | 39 kg |
| Cooling | Intelligent air cooling |
Published reference values are not a substitute for the final selected-model datasheet and project design.
The complete system must account for site loads, electrical interfaces, environmental limits and local installation requirements.
Explore the planning guideShare your country, quantity, electrical requirements, installation environment and delivery plan. Ask for the final datasheet and supply scope for this reference.
Grid-tied string inverters
MODEL REFERENCESUN-20K-G05
SUN-18–25K-G05 family view; 20 kW configuration.
Grid-tied string inverters
MODEL REFERENCESUN-50K-G04
G04 family view shared by the 40 / 50 kW configurations.
Grid-tied string inverters
MODEL REFERENCESUN-100K-G03
SUN-70–110K-G03 manufacturer family view; 100 kW configuration.