--- title: "Fronius Symo 20.0-3 480 vs Growatt MID 20KTL3-X - Inverter Comparison | ComparePV" description: "Compare Fronius Symo 20.0-3 480 vs Growatt MID 20KTL3-X side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification." source: "https://comparepv.com/compare-inverters/fronius-international-fronius-symo-20-0-3-480/growatt-mid-20ktl3-x" updated: 2026-01-16 --- # Fronius Symo 20.0-3 480 vs Growatt MID 20KTL3-X 10 differences, and they point both ways The largest is warranty: 5 yrs longer. 7 of 17 comparable parameters are identical, with 15 more left out because at least one datasheet does not publish them. ## The two inverters | Attribute | A | B | | --- | --- | --- | | Inverter | [Fronius Symo 20.0-3 480](https://comparepv.com/inverter/fronius-international-fronius-symo-20-0-3-480) | [Growatt MID 20KTL3-X](https://comparepv.com/inverter/growatt-mid-20ktl3-x) | | Manufacturer | Fronius International | Growatt | | Rated AC power | 19.995 kW | 20 kW | | Type | Grid-tie | Grid-tie | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | Fronius Symo 20.0-3 480 | MID 20KTL3-X | Difference | | --- | --- | --- | --- | | Warranty | 10 yrs | 5 yrs | +5 yrs for Fronius Symo 20.0-3 480 | | Max DC voltage | 1000 V | 1100 V | 100 V apart | | Max efficiency | 98.0 % | 98.8 % | +0.8 pp for MID 20KTL3-X | | Max AC power | 20.00 kW | 22.00 kW | 2.00 kW apart | | Weight | 43.4 kg | 23.0 kg | -20.4 kg for MID 20KTL3-X | | Weight per kW | 2.2 kg/kW | 1.1 kg/kW | -1.0 kg/kW for MID 20KTL3-X | | Max AC current | 24.0 A | 31.9 A | 7.9 A apart | | Start voltage | 200 V | 250 V | -50 V for Fronius Symo 20.0-3 480 | | Ingress protection | NEMA 4X | IP65 | NEMA 4X vs IP65 | | Dimensions | 724x511x226 mm | 395x525x222 mm | 724x511x226 mm vs 395x525x222 mm | ## Every compared parameter | Parameter | Fronius Symo 20.0-3 480 | MID 20KTL3-X | | --- | --- | --- | | Rated AC power | 20.00 kW | 20.00 kW | | Max AC power | 20.00 kW | 22.00 kW | | Grid connection | 3-phase | 3-phase | | Nominal AC voltage | - | 400 V | | Max AC current | 24.0 A | 31.9 A | | Max PV power | - | 30.00 kW | | DC/AC ratio | - | 1.50 | | Max DC voltage | 1000 V | 1100 V | | MPPT voltage range | - | 200-1000 V | | Start voltage | 200 V | 250 V | | MPP trackers | - | 2 | | Strings per tracker | - | - | | Max input current per tracker | - | - | | European efficiency | - | 98.6 % | | Max efficiency | 98.0 % | 98.8 % | | CEC efficiency | 97.5 % | - | | Battery input | - | - | | Battery voltage | - | - | | Max charge current | - | - | | Backup power | - | - | | Weight | 43.4 kg | 23.0 kg | | Weight per kW | 2.2 kg/kW | 1.1 kg/kW | | Dimensions | 724x511x226 mm | 395x525x222 mm | | Ingress protection | NEMA 4X | IP65 | | Cooling | forced-air | forced-air | | Noise | - | - | | Max operating temperature | 60 °C | 60 °C | | Wi-Fi | Yes | Yes | | Ethernet | Yes | Yes | | Arc fault protection | Yes | - | | Integrated DC switch | Yes | Yes | | Warranty | 10 yrs | 5 yrs | ## Related comparisons - [Fronius Symo 20.0-3 480 vs Fronius Symo Advanced 20.0-3 480](https://comparepv.com/compare-inverters/fronius-international-fronius-symo-20-0-3-480/fronius-international-fronius-symo-advanced-20-0-3-480) - One difference: dimensions - [Fronius Symo 20.0-3 480 vs Fronius Verto 20.0](https://comparepv.com/compare-inverters/fronius-international-fronius-symo-20-0-3-480/fronius-international-fronius-verto-20-0) - 7 differences, the largest is max efficiency - [Fronius Symo 20.0-3 480 vs Sungrow SG20KTL-M](https://comparepv.com/compare-inverters/fronius-international-fronius-symo-20-0-3-480/sungrow-sg20ktl-m) - 8 differences, the largest is max dc voltage - [Growatt MID 20KTL3-X vs Huawei SUN2000-20KTL-M2](https://comparepv.com/compare-inverters/growatt-mid-20ktl3-x/huawei-sun2000-20ktl-m2) - 8 differences, the largest is weight - [Growatt MID 20KTL3-X vs Huawei SUN2000-20KTL-M0](https://comparepv.com/compare-inverters/growatt-mid-20ktl3-x/huawei-sun2000-20ktl-m0) - 8 differences, the largest is weight --- Source: https://comparepv.com/compare-inverters/fronius-international-fronius-symo-20-0-3-480/growatt-mid-20ktl3-x Not in this file, on the page: a written summary generated on request.