Deye SUN-8K-SG04LP3-EU 8 kW 3-phase hybrid inverter
€1,799.00
Deye SUN-8K-SG04LP3-EU is an 8 kW three-phase hybrid inverter with 2 MPPT inputs, a 40–60 V battery input and IP65 protection.
- Free delivery across Lithuania
- 14-day returns — we pay for the return shipping
- Manufacturer warranty, CE compliant
The Deye SUN-8K-SG04LP3-EU is a three-phase 8 kW hybrid inverter with 2 MPPTs: maximum PV input power 12,000 W (PV access power 16,000 W) and a battery current of up to 190 A. Of the four models compared here it has the highest power: next to the three-phase SUN-5K-SG04LP3-EU its rated power is 3 kW higher and its battery current is 190 A instead of 120 A, while the dimensions (422 × 658 × 254 mm), weight (38 kg) and parallel operation of up to 10 units are the same. It suits a three-phase site that needs 8 kW of rated AC power.
Technical specifications
| Parameter | Value |
|---|---|
| Model | SUN-8K-SG04LP3-EU |
| Rated AC power (input / output) | 8 kW (8000 W) |
| Max. AC apparent power | 8800 VA |
| Phases | three-phase, 3L+N+PE |
| Rated voltage | 220/380 V, 230/400 V, 0.85 Un–1.1 Un |
| Grid frequency | 50/45–55 Hz, 60/55–65 Hz |
| Rated AC current (input / output) | 12.1 / 11.6 A |
| Max. AC current (input / output) | 13.4 / 12.8 A |
| Max. continuous AC throughput (grid to load) | 40 A |
| Peak power (off-grid mode) | 2 × rated power, 10 s |
| Power factor | 0.8 leading to 0.8 lagging |
| THDi | < 3 % (of rated power) |
| DC injection current | < 0.5 % In |
| Max. PV access power | 16,000 W |
| Max. PV input power | 12,000 W |
| Max. PV input voltage | 800 V |
| Start-up voltage | 160 V |
| MPPT voltage range | 200–650 V |
| Rated PV input voltage | 550 V |
| MPPT trackers / strings | 2 MPPT, 1+1 strings |
| Max. PV operating current | 13+13 A |
| Max. short-circuit current | 17+17 A |
| Battery type | lead-acid or lithium-ion |
| Battery voltage range | 40–60 V (48 V low-voltage battery) |
| Max. charge / discharge current | 190 A |
| Number of battery inputs | 1 |
| Li-ion charging strategy | adjusts to the BMS |
| Charge / discharge periods | 6 programmable time periods |
| Unbalanced load | 100 % unbalanced output, up to 50 % of rated power on a single phase |
| Parallel operation | up to 10 units (on-grid and off-grid); supports several batteries in parallel |
| Max. efficiency | 97.6 % |
| Euro efficiency | 97.0 % |
| MPPT efficiency | > 99 % |
| Ingress protection | IP65 |
| Dimensions (W × H × D) | 422 × 658 × 254 mm (without connectors and brackets) |
| Weight | 38 kg |
| Cooling | intelligent air cooling |
| Noise | < 55 dB |
| Operating temperature | −40 to +60 °C (output derated above 45 °C) |
| Humidity / altitude | 0–100 % / up to 2000 m |
| Topology | transformerless (PV side), isolated (battery side); transformer isolation |
| Overvoltage category | OVC II (DC), OVC III (AC) |
| Surge protection | TYPE II (DC), TYPE II (AC) |
| Interfaces | WiFi, RS485, CAN; LCD display |
| Protective functions | DC polarity, AC overcurrent, thermal, AC overvoltage, AC short circuit, DC component monitoring, anti-islanding, DC switch, insulation resistance and residual current monitoring; AFCI optional |
| Grid standards | IEC 61727, IEC 62116, CEI 0-21, EN 50549, NRS 097, RD 140, UNE 217002, OVE-Richtlinie R25, G99, VDE-AR-N 4105 |
| Safety / EMC | IEC/EN 62109-1, IEC/EN 62109-2, IEC/EN 61000-6-1/2/3/4 |
How the SUN-8K-SG04LP3-EU differs from SUN-5K-SG03LP1-EU, SUN-5K-SG04LP3-EU and SUN-6K-SG03LP1-EU
| Parameter | SUN-8K-SG04LP3-EU | SUN-5K-SG03LP1-EU | SUN-5K-SG04LP3-EU | SUN-6K-SG03LP1-EU |
|---|---|---|---|---|
| Phases | three-phase | single-phase | three-phase | single-phase |
| Rated AC power | 8 kW | 5 kW | 5 kW | 6 kW |
| Max. PV input power | 12,000 W | 6500 W | 7500 W | 7800 W |
| MPPT voltage range | 200–650 V | 150–425 V | 200–650 V | 150–425 V |
| Max. battery charge / discharge current | 190 A | 120 A | 120 A | 135 A |
| Parallel operation | up to 10 units | up to 16 units | up to 10 units | up to 16 units |
Choose the SUN-8K-SG04LP3-EU when a three-phase site needs 8 kW of AC power and a 190 A battery current. If 5 kW is enough, the SUN-5K-SG04LP3-EU fits: the same housing (38 kg), but with a 120 A battery current. The single-phase SUN-5K-SG03LP1-EU (5 kW) and SUN-6K-SG03LP1-EU (6 kW) are meant for a single-phase connection and are lighter (25 kg).
What is an 8 kW 3-phase hybrid inverter for?
The Deye SUN-8K-SG04LP3-EU is a three-phase (3L+N+PE) inverter for managing a PV system in homes and small businesses, backup power, off-grid (island) systems and adding storage to an existing solar system through AC coupling. An unbalanced load is allowed: up to 50 % of rated power on a single phase.
Hybrid inverter with battery: which batteries fit
The Deye SUN-8K-SG04LP3-EU connects to 40–60 V batteries: both lead-acid and lithium-ion types work, and for Li-ion batteries the charging strategy adjusts to the BMS. The inverter has one battery input, and the maximum charge / discharge current is 190 A.
- Several batteries can be connected in parallel.
- Up to 10 inverters can be connected in parallel, both on-grid and off-grid.
- 6 time periods can be programmed for when the battery charges and discharges.
How to size a solar hybrid inverter: power and PV input
The Deye SUN-8K-SG04LP3-EU has a rated AC power of 8 kW and a maximum AC apparent power of 8800 VA. In off-grid mode it can supply twice the rated power for 10 s. When choosing, it is important not to mix up two PV figures:
- Max. PV access power: 16,000 W.
- Max. PV input power: 12,000 W.
- MPPT voltage range: 200–650 V, maximum PV input voltage 800 V, start-up voltage 160 V.
- MPPT: 2 inputs, each with 1+1 strings, maximum PV operating current 13+13 A.
Hybrid inverter with storage: connection, off-grid operation and generator
The Deye SUN-8K-SG04LP3-EU works both connected to the grid and in off-grid (island) mode, so it suits backup power. It can store energy from a diesel generator, and AC coupling lets you add it to an existing solar PV system.
A hybrid inverter does more than feed surplus into the grid: it can keep it for itself. ESO (Lithuanian grid operator) states:
“Part of the surplus electricity generated can be stored in an energy storage device and used in the evening.”
We handle it for you. We select the equipment for your site, deliver anywhere in Lithuania, install and connect it. The consultation before purchase is free.
What to know before buying
- Dimensions and weight: 422 × 658 × 254 mm, 38 kg.
- Noise: below 55 dB, intelligent air cooling.
- Operating conditions: −40 to +60 °C, output derated above 45 °C; protection class IP65.
- Monitoring: WiFi, RS485, CAN, LCD display.
- AFCI protection: optional.
- Warranty: the manufacturer datasheet says the term depends on the country of installation and gives no specific term for Lithuania.
Frequently asked questions
How many kW is the Deye SUN-8K-SG04LP3-EU and what is its rated power?
The Deye SUN-8K-SG04LP3-EU has a rated AC power of 8 kW (8000 W) and a maximum AC apparent power of 8800 VA.
Does the SUN-8K-SG04LP3-EU work without the grid?
Yes, the Deye SUN-8K-SG04LP3-EU works both connected to the grid and in off-grid mode; in off-grid mode it can supply twice the rated power for 10 s.
Which batteries work with the SUN-8K-SG04LP3-EU?
The Deye SUN-8K-SG04LP3-EU works with 40–60 V lead-acid or lithium-ion batteries. Hybrid Energy selects the batteries for your site, delivers, installs and connects them.
What is the maximum charge and discharge current of the SUN-8K-SG04LP3-EU?
The maximum battery charge / discharge current of the Deye SUN-8K-SG04LP3-EU is 190 A, and the inverter has 1 battery input.
What is the maximum PV input power of the SUN-8K-SG04LP3-EU?
The maximum PV input power of the Deye SUN-8K-SG04LP3-EU is 12,000 W, and the maximum PV access power is 16,000 W. These are two different figures, so we calculate the number of modules from their voltage and current.
Can several SUN-8K-SG04LP3-EU units be connected in parallel?
Yes, up to 10 units of the Deye SUN-8K-SG04LP3-EU can be connected in parallel, both on-grid and off-grid, and several batteries in parallel are also supported.
Can a diesel generator be connected to the SUN-8K-SG04LP3-EU?
Yes, the Deye SUN-8K-SG04LP3-EU can store energy from a diesel generator. Hybrid Energy helps select and connect the solution for your site.
Is the SUN-8K-SG04LP3-EU suitable for adding to an existing solar PV system?
Yes, the Deye SUN-8K-SG04LP3-EU has AC coupling, so it can be used to upgrade an existing solar system.
Can an unbalanced load be connected to the SUN-8K-SG04LP3-EU?
Yes, the Deye SUN-8K-SG04LP3-EU allows 100 % unbalanced output: up to 50 % of rated power on a single phase.
What is the warranty on the SUN-8K-SG04LP3-EU?
The Deye datasheet says the warranty term depends on the country of installation and gives no specific term for Lithuania. Ask about the exact conditions that apply in Lithuania before you order.
Sources
| Weight | 33.6 kg |
|---|---|
| Brand | Deye |
| Dvipusis | N |
| Power | 8 kW |
| Phases | Three-phase |
| Brand | Deye |
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