Sinexcel Isuna
The Sinexcel Isuna is a solar inverter range from Sinexcel with 23 models. Rated AC output 5 kW – 20.18 kW. Listed and verified: CEC Approved Inverter, VDE-AR-N 4105 and UL 1741. Sold in Australia, Germany and United States.
Specifications
- Rated AC output
- 5 kW – 20.18 kW
- Models in this range
- 23
What the Sinexcel Isuna 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 Sinexcel Isuna range spans 5 kW to 20.18 kW of AC output, suiting arrays of about 5–6.5 kWp at the small end and 20.2–26.2 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 4,500 to 18,163 kWh a year, assuming a conservative 900 kWh per kWp. For the smallest model, that is worth €347 a year fed into the grid at 7.70 ct per kWh, and up to €1,665 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
- Sinexcel · China
- Category
- Home Solar & Hybrid Inverters
- Sold in
- Australia, Germany, United States
- Listed in
- Clean Energy Council (Australia), ZEREZ (FGW, Germany) and California Energy Commission
Models (23)
| Model | AC output | Listed until |
|---|---|---|
| Isuna 5000T | 5 kW | 22 August 2028 |
| Isuna D5K-TL | 5.5 kW | |
| Isuna D5K-TL-S | 5.5 kW | |
| Isuna 6000T | 6 kW | 22 August 2028 |
| Isuna D6K-TL | 6.6 kW | |
| Isuna D6K-TL-S | 6.6 kW | |
| Isuna 8000T | 8 kW | 22 August 2028 |
| Isuna D8K-TL | 8.8 kW | |
| Isuna D8K-TL-S | 8.8 kW | |
| Isuna 10000T | 10 kW | 22 August 2028 |
| Isuna U10K-PH | 10.074 kW | |
| Isuna D9.9K-TL | 10.9 kW | |
| Isuna D9.9K-TL-S | 10.9 kW | |
| Isuna D10K-TL | 11 kW | |
| Isuna D10K-TL-S | 11 kW | |
| Isuna 12000T | 12 kW | 22 August 2028 |
| Isuna D12K-TL | 13.2 kW | |
| Isuna D12K-TL-S | 13.2 kW | |
| Isuna 15000T | 15 kW | 22 August 2028 |
| Isuna U15K-PH | 15.042 kW | |
| Isuna 18000T | 18 kW | 22 August 2028 |
| Isuna 20000T | 20 kW | 22 August 2028 |
| Isuna U20K-PH | 20.181 kW |
Certifications
| Certification | Market | Status | Reference | Valid until |
|---|---|---|---|---|
| CEC Approved Inverter | Australia | ✓ Verified 19 October 2026 | 22 August 2028 | |
| VDE-AR-N 4105 | Germany | ✓ Verified 20 October 2026 | A3 50606991 0001, PVDE2506WDG0084-1 | |
| UL 1741 | United States | ✓ Verified 19 October 2026 | No Information Submitted |