
Businesses and private customers outside Italy: purchase with 22% VAT. The 10% VAT rate is reserved for private customers resident in Italy — learn more.
Foreign businesses entitled to 0% VAT: write to info@litio.store.
Italy: €120. European Union: €350.
Fronius 42.48 kWp Commercial Solar Kit – 33.3 kW Three-Phase String Inverter
Solar system for commercial and industrial sites, sized to the inverter limits
Commercial & Industrial Solar Kit
Grid-tied three-phase solar system for commercial and industrial use, built around the Fronius Verto 33.3 inverter.
| ☀️ 42.48 kWp Solar | ⚡ 33.3 kW Inverter | 🔌 Three-Phase Grid-tie |
Kit Contents
72× 590 W N-Type TOPCon bifacial dual-glass solar modules
Total array power 42.48 kWp. Vmp 44.35 V, Voc 52.82 V, Imp 13.30 A, Isc 14.02 A, size 2278 × 1134 × 30 mm.
1× Fronius Verto 33.3 33.3 kW three-phase string inverter
Converts the module output to AC and feeds it into the grid. 4 MPPT, 150–870 V, 28 A per MPPT.
1× Three-phase AC panel 50 kW 100 A with adjustable RCD and interface protection (SPI), IP65
Protection and isolation of the AC grid connection.
1× DC field box 1000 V IP66 for 8 strings with Type 2 SPD
Surge protection of the PV strings on the DC side; DC isolation is built into the inverter.
PV String Design
6 strings of 12 modules, distributed 2 / 2 / 1 / 1 across the MPPTs. Operating voltage Vmp 532.2 V, Voc at 25 °C 633.8 V, worst-case Voc at −25 °C 723 V (conservative coefficient −0.28 %/°C) — within the inverter’s 1000 V limit and the 1000 V rating of the protection boxes. Maximum current per MPPT 26.6 A, within the input limit (4 MPPT, 150–870 V, 28 A per MPPT). DC/AC ratio 1.28×.
Storage, Grid and Operation
Grid-tie string inverter without battery, CEI 0-21 compliant, with built-in DC isolator. Above 11.08 kW the Italian CEI 0-21 standard requires external interface protection: it is built into the kit’s AC panel.
A consistent, well-engineered system
The kit uses selected components and a PV configuration calculated and checked against the inverter’s electrical limits, ready for installation by qualified personnel. The product includes only the listed components. Mounting structures, cables, connectors, installation, permits, commissioning and any additional protection required by the design or lightning-risk assessment are not included. Shipping is a flat €120 in Italy and €350 within the European Union.