Fronius Primo GEN24 4.0 vs Sofar 4.4KTLX-G3
AC power: Fronius Primo GEN24 4.0 4 kW, Sofar 4.4KTLX-G3 4 kW. The Sofar 4.4KTLX-G3 is better on 4 of 8 comparable points.
Who wins where
- Fronius Primo GEN24 4.0
- Sofar 4.4KTLX-G3
Biggest differences
| Fact | Primo GEN24 4.0 | 4.4KTLX-G3 |
|---|---|---|
| MPPT voltage max. | 530 V | 1,000 V |
| MPPT voltage min. | 210 V | 140 V |
| Weight | 15.4 kg | 17 kg |
Score per area = position (0–100) relative to all 238 models in this category; higher is better.
| Technical specifications | FroniusPrimo GEN24 4.0 | Sofar4.4KTLX-G3 |
|---|---|---|
| Performance | ||
| AC power | 4 kW 1 | 4 kW 2 |
| Max. PV array power | 6 kWp 3 | – |
| MPP trackers | 2 3 | 2 2 |
| Efficiency | ||
| Max. efficiency | 97.6 % 3 | 98.4 % ✓ 2 |
| European efficiency | 97.1 % 3 | 97.5 % ✓ 2 |
| Noise | ||
| Noise | 42 dB(A) 3 | – |
| Electrical | ||
| MPPT voltage min. | 210 V 3 | 140 V ✓ 2 |
| MPPT voltage max. | 530 V 3 | 1,000 V ✓ 2 |
| Max. input current per MPPT | 22 A 3 | – |
| Phases | 1 1 | – |
| Connectivity & smart | ||
| Hybrid (battery-ready) | No 1 | – |
| Backup power | Yes 3 | – |
| Wi-Fi / monitoring | Yes 3 | Yes 2 |
| Dimensions & weight | ||
| IP rating | IP66 3 | IP65 2 |
| Width | 474 mm 3 | – |
| Height | 530 mm 3 | – |
| Depth | 165 mm 3 | – |
| Weight | 15.4 kg ✓ 3 | 17 kg 2 |
Sources
- ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026
- SOFAR 3.3K~12KTLX-G3 Datasheet, 03 / 2023——V2 — SOFAR · accessed 29 Sept 2026
- Fronius Primo GEN24 & GEN24 Plus 3.0 - 6.0 kW – datasheet, EN V04 (June 2025) — Fronius International GmbH · accessed 27 Sept 2026