--- title: "Fronius Verto 33.3 Plus vs Growatt WT 35K-H-US L2 / WT 35K-HU-US L2 - Inverter Comparison | ComparePV" description: "Compare Fronius Verto 33.3 Plus vs Growatt WT 35K-H-US L2 / WT 35K-HU-US L2 side by side: what actually differs, efficiency, MPP trackers, battery input and the full specification." source: "https://comparepv.com/compare-inverters/fronius-international-fronius-verto-33-3-plus/growatt-wt-35k-h-us-l2-wt-35k-hu-us-l2" updated: 2026-01-16 --- # Fronius Verto 33.3 Plus vs Growatt WT 35K-H-US L2 / WT 35K-HU-US L2 15 differences, and they point both ways The largest is rated ac power: 1.70 kW apart. 6 of 21 comparable parameters are identical, with 11 more left out because at least one datasheet does not publish them. ## The two inverters | Attribute | A | B | | --- | --- | --- | | Inverter | [Fronius Verto 33.3 Plus](https://comparepv.com/inverter/fronius-international-fronius-verto-33-3-plus) | [Growatt WT 35K-H-US L2 / WT 35K-HU-US L2](https://comparepv.com/inverter/growatt-wt-35k-h-us-l2-wt-35k-hu-us-l2) | | Manufacturer | Fronius International | Growatt | | Rated AC power | 33.3 kW | 35 kW | | Type | Hybrid | Hybrid | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | Fronius Verto 33.3 Plus | WT 35K-H-US L2 / WT 35K-HU-US L2 | Difference | | --- | --- | --- | --- | | Rated AC power | 33.30 kW | 35.00 kW | 1.70 kW apart | | Max DC voltage | 1000 V | 800 V | 200 V apart | | Max input current per tracker | 28.0 A | 32.0 A | +4.0 A for WT 35K-H-US L2 / WT 35K-HU-US L2 | | Max AC power | 33.30 kW | 35.00 kW | 1.70 kW apart | | Max PV power | 39.00 kW | 75.60 kW | 36.60 kW apart | | DC/AC ratio | 1.17 | 2.16 | +0.99 for WT 35K-H-US L2 / WT 35K-HU-US L2 | | Weight | 43.0 kg | 133.0 kg | -90.0 kg for Fronius Verto 33.3 Plus | | Weight per kW | 1.3 kg/kW | 3.8 kg/kW | -2.5 kg/kW for Fronius Verto 33.3 Plus | | Nominal AC voltage | 400 V | 208 V | 192 V apart | | Max AC current | 50.5 A | 106.9 A | 56.4 A apart | | Start voltage | 150 V | 195 V | -45 V for Fronius Verto 33.3 Plus | | MPP trackers | 3 | 2 | +1 trackers for Fronius Verto 33.3 Plus | | MPPT voltage range | 150-870 V | 180-600 V | 150-870 V vs 180-600 V | | Battery voltage | 150-700 | 380-650V | 150-700 vs 380-650V | | Dimensions | 865x574x279 mm | 1350x820x501 mm | 865x574x279 mm vs 1350x820x501 mm | ## Every compared parameter | Parameter | Fronius Verto 33.3 Plus | WT 35K-H-US L2 / WT 35K-HU-US L2 | | --- | --- | --- | | Rated AC power | 33.30 kW | 35.00 kW | | Max AC power | 33.30 kW | 35.00 kW | | Grid connection | 3-phase | 3-phase | | Nominal AC voltage | 400 V | 208 V | | Max AC current | 50.5 A | 106.9 A | | Max PV power | 39.00 kW | 75.60 kW | | DC/AC ratio | 1.17 | 2.16 | | Max DC voltage | 1000 V | 800 V | | MPPT voltage range | 150-870 V | 180-600 V | | Start voltage | 150 V | 195 V | | MPP trackers | 3 | 2 | | Strings per tracker | 2 | - | | Max input current per tracker | 28.0 A | 32.0 A | | European efficiency | 98.0 % | - | | Max efficiency | 98.2 % | 98.0 % | | CEC efficiency | - | - | | Battery input | Yes | Yes | | Battery voltage | 150-700 | 380-650V | | Max charge current | 50 A | - | | Backup power | - | - | | Weight | 43.0 kg | 133.0 kg | | Weight per kW | 1.3 kg/kW | 3.8 kg/kW | | Dimensions | 865x574x279 mm | 1350x820x501 mm | | Ingress protection | IP66 | IP66 | | Cooling | forced-air | forced-air | | Noise | 57 dB | - | | Max operating temperature | 60 °C | 60 °C | | Wi-Fi | Yes | - | | Ethernet | Yes | - | | Arc fault protection | Yes | - | | Integrated DC switch | Yes | - | | Warranty | - | - | ## Related comparisons - [Fronius Verto 33.3 Plus vs Growatt MID 33K-HU](https://comparepv.com/compare-inverters/fronius-international-fronius-verto-33-3-plus/growatt-mid-33k-hu) - 14 differences, the largest is rated ac power - [Fronius Verto 33.3 Plus vs Deye SUN-35K-SG01HP3-EU-BM3](https://comparepv.com/compare-inverters/fronius-international-fronius-verto-33-3-plus/deye-sun-35k-sg01hp3-eu-bm3) - 17 differences, the largest is rated ac power - [Fronius Verto 33.3 Plus vs Ginlong Solis S6-EH3P35K-H-LV(21A)](https://comparepv.com/compare-inverters/fronius-international-fronius-verto-33-3-plus/ginlong-solis-s6-eh3p35k-h-lv-21a) - 16 differences, the largest is rated ac power - [Growatt WT 35K-H-US L2 / WT 35K-HU-US L2 vs Growatt WIT 35K-A-US L2 / WIT 35K-AU-US L2](https://comparepv.com/compare-inverters/growatt-wt-35k-h-us-l2-wt-35k-hu-us-l2/growatt-wit-35k-a-us-l2-wit-35k-au-us-l2) - 6 differences, the largest is max ac power - [Growatt WT 35K-H-US L2 / WT 35K-HU-US L2 vs Growatt MID 36K-HU](https://comparepv.com/compare-inverters/growatt-wt-35k-h-us-l2-wt-35k-hu-us-l2/growatt-mid-36k-hu) - 15 differences, the largest is rated ac power --- Source: https://comparepv.com/compare-inverters/fronius-international-fronius-verto-33-3-plus/growatt-wt-35k-h-us-l2-wt-35k-hu-us-l2 Not in this file, on the page: a written summary generated on request.