SolaX Power X3-4.0-S-D
The SolaX Power X3-4.0-S-D is a solar inverter range from SolaX Power with 2 models. Rated AC output 4 kW – 5 kW. Listed and verified: VDE-AR-N 4105. Sold in Germany.
Specifications
- Rated AC output
- 4 kW – 5 kW
- Models in this range
- 2
What the SolaX Power X3-4.0-S-D does
A solar string inverter turns the direct current from a rooftop array into grid-quality alternating current for the home, and feeds what the home does not use into the grid. The SolaX Power X3-4.0-S-D range spans 4 kW to 5 kW of AC output, suiting arrays of about 4–5.2 kWp at the small end and 5–6.5 kWp at the large end, as installers commonly size the panels up to 30% above the inverter's rating.
In Germany, arrays of the same size produce about 3,600 to 4,500 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €277 a year fed into the grid at 7.70 ct per kWh, and up to €1,332 used at home instead of buying power at 37.0 ct.
Estimates. Electricity prices: BDEW Strompreisanalyse, autumn 2026; Bundesnetzagentur, EEG feed-in tariffs from 1 August 2026.
Product details
- Product type
- Solar inverter
- Brand
- SolaX Power · China
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Germany
- Listed in
- ZEREZ (FGW, Germany)
Models (2)
| Model | AC output |
|---|---|
| X3-4.0-S-D | 4 kW |
| X3-5.0-S-D | 5 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | U21-0587 |