Deye 8 kW vs 10 kW Hybrid Inverter: SUN-8K-SG04LP3-EU vs SUN-10K-SG04LP3-EU
The SUN-8K-SG04LP3-EU and the SUN-10K-SG04LP3-EU are three-phase hybrid inverters built in the same 422 × 658 × 254 mm cabinet at the same 38 kg. Both connect 3L+N+PE at 220/380 or 230/400 V, both reach a maximum efficiency of 97.6 %, and both work with a battery in a 40–60 V battery voltage range. The SUN-8K-SG04LP3-EU has a rated AC output power of 8000 W and the SUN-10K-SG04LP3-EU a rated AC output power of 10000 W, but the bigger step is on the solar side, where the 10 kW unit takes a third string and twice the current on one MPPT. Below, the two product records are read side by side so you can tell whether the higher rating is the part you need.
Specifications side by side
Every figure in this table is read from the product’s own record — the same rows each product page shows.
| Specification | Deye 8 kW Three-Phase Hybrid Solar Inverter SUN-8K-SG04LP3-EU | Deye 10 kW Three-Phase Hybrid Solar Inverter SUN-10K-SG04LP3-EU |
|---|---|---|
| Rated AC Power | 8000 W | 10000 W |
| Max Efficiency | 97.6 % | 97.6 % |
| Number of MPP Trackers | 2 | 2 |
| European Efficiency | 97 % | 97 % |
| Max AC Apparent Power | 8800 VA | 11000 VA |
| Max PV Array Power | 16000 W | 20000 W |
| Max PV Input Power | 12000 W | 15000 W |
| MPPT Voltage Range | 200 ~ 650 V | 200 ~ 650 V |
| Peak / Surge Power (W) | 2× rated | 2× rated |
| AC Grid Connection Type | 3L+N+PE | 3L+N+PE |
| AC Coupling Support | Yes | Yes |
| Supported Battery Type | Lead-acid or Lithium-ion | Lead-acid or Lithium-ion |
| Battery Voltage Range | 40 ~ 60 V | 40 ~ 60 V |
| Max Charge Current | 190 A | 210 A |
| Max Discharge Current | 190 A | 210 A |
| Max PV Input Current | 13 A | 26 A |
| Max PV Input / Array Open Circuit Voltage | 800 V | 800 V |
| MPPT Efficiency | 99 % | 99 % |
| Rated AC Output Current | 12.1 A | 15.2 A |
| Grid / AC Frequency | 50/45-55, 60/55-65 | 50/45-55, 60/55-65 |
| Nominal AC Voltage | 220/380, 230/400 | 220/380, 230/400 |
| Start-up Voltage | 160 V | 160 V |
| Strings per MPP Tracker | 1 | 2 |
| THD / THDi | 3 % | 3 % |
| Warranty | 10 years | 10 years |
| Phase | 3L+N+PE | 3L+N+PE |
| AC Voltage Tolerance (xUn) | 0.85 ~ 1.1 | 0.85 ~ 1.1 |
| Battery Parallel Support | Yes | Yes |
| Charge/Discharge Time Periods | 6 | 6 |
| Charging Strategy | Self-adaption to BMS | Self-adaption to BMS |
| Topology | Non-Isolated | Non-Isolated |
| Max AC Output Current | 13.4 A | 16.7 A |
| Pass-Through / Bypass Current | 45 A | 45 A |
| Max PV Short-Circuit Current | 17 A | 34 A |
| Number of Battery Inputs | 1 | 1 |
| Max. Parallel Units | 10 | 10 |
| Adjustable Power Factor Range | 0.8 ~ 0.8 | 0.8 ~ 0.8 |
| MPPT Nominal Voltage | 550 V | 550 V |
| Unbalanced Output | 100 % | 100 % |
| Unbalanced Output per Phase | 50 % | 50 % |
| Dimensions (W×H×D) | 422×658×254 mm | 422×658×254 mm |
| Weight | 38 kg | 38 kg |
| Derating Start Temperature | 45 °C | 45 °C |
| IP Rating | IP65 | IP65 |
| Noise Level | 55 dB | 55 dB |
| Operating Temperature | -40 ~ 60 °C | -40 ~ 60 °C |
| Max Altitude | 2000 m | 2000 m |
| Relative Humidity | 0 ~ 100 % | 0 ~ 100 % |
| Cooling | Intelligent Air Cooling | Intelligent Air Cooling |
| Over-Current Protection | Yes | Yes |
| Over-Voltage Protection | Yes | Yes |
| AC Short-Circuit Protection | Yes | Yes |
| Anti-Islanding Protection | Yes | Yes |
| DC Component Monitoring | Yes | Yes |
| DC Reverse Polarity Protection | Yes | Yes |
| Generator Support | Yes | Yes |
| Protection Features | Yes | Yes |
| Overvoltage Category | OVC II(DC), OVC III(AC) | OVC II(DC), OVC III(AC) |
| Residual Current Monitoring Unit | Yes | Yes |
| AC/DC Surge Protection | TYPE II(DC), TYPE II(AC) | TYPE II(DC), TYPE II(AC) |
| Communication Interface | RS485, RS232, CAN | RS485, RS232, CAN |
| DC Switch | Yes | Yes |
| Monitoring Module | GPRS, Wi-Fi, Bluetooth, 4G, LAN (optional) | GPRS, Wi-Fi, Bluetooth, 4G, LAN (optional) |
| Over-Temperature / Thermal Protection | Yes | Yes |
| Additional Note | DC Injection Current (% of In): <0.5 | DC Injection Current (% of In): <0.5 |
AC output: 8000 W or 10000 W
The SUN-8K-SG04LP3-EU has a rated AC output active power of 8000 W, a maximum apparent power of 8800 VA and a rated AC output current of 12.1/11.6 A. The SUN-10K-SG04LP3-EU has a rated AC output active power of 10000 W, a maximum apparent power of 11000 VA and 15.2/14.5 A. Both records state a peak power of twice the rating for 10 seconds, a maximum continuous AC pass-through current of 45 A, and an unbalanced output capability of 100 % with 50 % per phase. On a three-phase supply with uneven loads that last row matters as much as the rating, and it is the same on both.
Solar input: two strings or three
Both have 2 MPPTs. On the SUN-8K-SG04LP3-EU each MPPT takes one string (1+1), with a maximum operating PV input current of 13+13 A, a maximum PV input power of 12000 W and a maximum PV access power of 16000 W. On the SUN-10K-SG04LP3-EU the strings are 2+1, the operating current is 26+13 A, the PV input power 15000 W and the PV access power 20000 W. The voltage limits are identical: 800 V maximum PV input, an MPPT range of 200–650 V, a rated PV input of 550 V and a 160 V start-up. A roof that needs a third string is a roof for the 10 kW unit.
Battery side: 190 A or 210 A
Both inverters work with a lead-acid or lithium-ion battery in a 40–60 V battery voltage range through one battery input, and both adapt charging to the battery's BMS. The SUN-8K-SG04LP3-EU has a maximum charge current of 190 A and a maximum discharge current of 190 A. The SUN-10K-SG04LP3-EU has a maximum charge current of 210 A and a maximum discharge current of 210 A. Both records list six charge/discharge time periods, AC coupling support, diesel generator support and up to 10 units in parallel.
What does not change with the rating
The SUN-8K-SG04LP3-EU and the SUN-10K-SG04LP3-EU share a maximum efficiency of 97.6 % and a European efficiency of 97.0 %. Both are IP65 with intelligent air cooling and a noise level below 55 dB; both operate from -40 to 60 °C with derating starting at 45 °C, up to an altitude of 2000 m. Both have RS485, RS232 and CAN interfaces and a 10-year warranty. Mounting, clearances and cabling space are the same job for either unit.
Which one for which load
Choose the SUN-8K-SG04LP3-EU when the loads you run together stay within its rated output power of 8000 W, your array fits two strings, and a maximum charge current of 190 A suits your battery bank. Choose the SUN-10K-SG04LP3-EU when loads approach its rated output power of 10000 W, when the array needs a third string, or when you want a maximum charge current of 210 A. The cabinet, the weight and the pass-through current are the same, so nothing on the wall or at the distribution board changes with the choice.
Where each one fits, and where it does not
Deye 8 kW Three-Phase Hybrid Solar Inverter SUN-8K-SG04LP3-EU
Best for
- Buildings on a three-phase supply
- Battery backup through power cuts, with solar stored for the evening and night
- Lithium or lead-acid battery banks
- Sites that also run a diesel generator
- Villas and large homes
- Outdoor installation (IP65 enclosure)
Deye 10 kW Three-Phase Hybrid Solar Inverter SUN-10K-SG04LP3-EU
Best for
- Buildings on a three-phase supply
- Battery backup through power cuts, with solar stored for the evening and night
- Lithium or lead-acid battery banks
- Sites that also run a diesel generator
- Villas and large homes
- Outdoor installation (IP65 enclosure)
Winner
SUN-10K-SG04LP3-EU for three PV strings and loads up to 10000 W; SUN-8K-SG04LP3-EU when two strings and 8000 W cover the site
Conclusion
The two inverters share a cabinet, an efficiency and a 10-year warranty. The SUN-8K-SG04LP3-EU brings a rated output power of 8000 W, two strings and a maximum charge current of 190 A; the SUN-10K-SG04LP3-EU brings a rated output power of 10000 W, three strings and a maximum charge current of 210 A. If your roof needs the third string or your loads pass 8000 W, the choice is made. The price shown on each product page is the price you pay.