Deye 40kW Solar Inverter Datasheet — SUN-40K-G04
A 40 kW three-phase on-grid string inverter for commercial rooftops: three MPP trackers, nine strings and 52 kW of accepted PV, rated 60.6 A per phase at 220/380 V.
SKU: DEYE-SUN-40K-G04 | Last Updated: 2026-01-24
⚡Electrical Specifications
| AC Output Overcurrent Protection | Yes |
| AC Output Overvoltage Protection | Yes |
| AC Output Short-Circuit Protection | Yes |
| AC Voltage Tolerance (×Un) | 0.85-1.1 |
| Anti-Islanding Protection | Yes |
| Anti-PID Function | Optional |
| Arc Fault Circuit Interrupter (AFCI) | Optional |
| DC Component Monitoring | Yes |
| DC Injection Current (% of In) | <0.5 |
| DC Reverse Polarity Protection | Yes |
| European Efficiency | 98.1 % |
| Grid Connection Form | 3L+N+PE |
| Insulation Impedance Detection | Yes |
| Inverter Topology | Non-Isolated |
| Max. AC Output Apparent Power | 44000 VA |
| Max. AC Output Current | 66.7/63.8 A |
| Max. Efficiency | 98.7 % |
| Max. Input Short-Circuit Current | 60+60+60 A |
| Max. Operating PV Input Current | 40+40+40 A |
| Max. PV Input Power | 52000 W |
| Max. PV Input Voltage | 1100 V |
| Number of MPPTs | 3 |
| MPPT Efficiency | >99 % |
| MPPT Voltage Range | 200-1000 V |
| Overvoltage Category | OVC II(DC), OVC III(AC) |
| Power Factor Range (Leading to Lagging) | 0.8-0.8 |
| Rated AC Output Active Power | 40000 W |
| Rated AC Output Current | 60.6/58 A |
| Rated Grid Frequency | 50/45-55, 60/55-65 Hz |
| Rated Output Voltage | 220/380, 230/400 V |
| Rated PV Input Voltage | 600 V |
| Residual Current Detection | Yes |
| Startup Voltage | 250 V |
| Strings per MPPT | 3+3+3 |
| Surge Protection Level | TYPE II(DC), TYPE II(AC) |
| Current Total Harmonic Distortion (THDi) | <3 % |
| Virtual Synchronous Generator (VSG) Support | Yes |
| Warranty (Years) | 5 |
| Zero Export Support | Yes |
🔧Mechanical Specifications
| Cabinet Dimensions | 434 x 570 x 243 mm |
| Communication Interfaces | RS485, RS232, Wi-Fi, LAN |
| DC Switch | Yes |
| LCD/LED Display | LCD1602 |
| String Monitoring | Optional |
| Weight | 39 kg |
🌡️Environmental Specifications
| Derating Start Temperature | 45 °C |
| IP Rating | IP65 |
| Noise Level | <65 dB |
| Operating Temperature Range | -25 to 60 °C |
| Max. Operating Altitude | 4000 m |
| Permissible Ambient Humidity | 0-100 % |
| Thermal Protection | Yes |
| Cooling Type | Intelligent Air Cooling |
✅Certifications
IEC 61727IEC 62116CEI 0-21EN 50549-1NRS 097G98G99VDE-AR-N 4105NC RFGIEC 61000-6-1EN 61000-6-1IEC 61000-6-2EN 61000-6-2IEC 61000-6-3EN 61000-6-3IEC 61000-6-4EN 61000-6-4IEC 62109-1EN 62109-1IEC 62109-2EN 62109-2