Fronius
Fronius Verto 33.3 SPD 1+2 String Inverter 33.3 kW Three-Phase 4 MPPT 4,210,406
Fronius Verto 33.3 SPD 1+2 String Inverter 33.3 kW Three-Phase 4 MPPT 4,210,406
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Businesses and non-Italian private customers: purchase with 22% VAT. The 10% rate is reserved for private customers resident in Italy — find out more.
Foreign companies entitled to 0% VAT: please write to info@litio.store.
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Fronius Verto 33.3 SPD 1+2 String Inverter 33.3 kW Three-Phase 4 MPPT 4,210,406
The Fronius Verto 33.3 SPD 1+2 (item code 4,210,406) is the three-phase 33.3 kW string inverter at the top of the Verto range, with 4 MPPT trackers with two inputs each and a photovoltaic array of up to 50 kWp. It is the choice for commercial and industrial systems on roofs with multiple orientations, thanks to the 150-870 V MPP range and 28 A per string.
The integrated type 1+2 surge protection on the DC and AC sides simplifies the array combiner box. Maximum efficiency is 97.47 % and European efficiency 97.36 %, with a maximum output current of 53.7 A. IP66 enclosure, active cooling, operation from -40 to +60 °C and communication via Ethernet LAN, WLAN and 2x RS485 Modbus RTU SunSpec.
Key features
4 independent MPPTFour trackers with two inputs each, up to 50 kWp of photovoltaic array.
33.3 kW three-phase33.3 kW / 33.3 kVA of rated AC power with 53.7 A maximum output current.
Integrated type 1+2 SPDProtection against direct and indirect lightning strikes on board, on the DC and AC sides.
97.47 % efficiencyEuropean efficiency of 97.36 % and a very wide MPP range (150-870 V).
IP66 and active coolingOperation from -40 to +60 °C, suitable for outdoor installations.
Integrated monitoringEthernet LAN, WLAN, 2x RS485 Modbus RTU SunSpec, digital I/O, datalogger and web server.
Technical specifications
| Feature | Value |
|---|---|
| Product code | 4.210.406 |
| Model | Fronius Verto 33.3 SPD 1+2 |
| Item code | 4.210.406 |
| Rated AC power | 33.3 kW |
| Max AC power | 33.3 kVA |
| Recommended max PV power | 50 kWp |
| MPPT range | 150-870 V |
| Number of MPPTs | 4 (2 inputs each) |
| Max current per string | 28 A |
| Rated input voltage | 600 V |
| Start-up voltage | 150 V |
| Grid phase | Three-phase 3~ (N)PE |
| Grid voltage | 400/230 V (also 380/220 V, 440/254 V, 480/277 V) |
| Max output current | 53.7 A |
| Power factor | 0-1 ind./cap. |
| Maximum efficiency | 97.47 % |
| European efficiency | 97.36 % |
| Surge protection | Integrated type 1+2 SPD (DC and AC) |
| Protection rating | IP66 |
| Cooling | Air cooling, active |
| Communication | Ethernet LAN RJ45, WLAN, 2x RS485 (Modbus RTU SunSpec), 6 digital I/O + 6 digital inputs, emergency stop (WSD) |
| Operating temperature | -40 °C ... +60 °C |
| Night-time consumption | 16 W |
| Noise level | 54,6 dB(A) |
| Dimensions (W x H x D) | 574 x 865 x 279 mm |
| Weight | 38.9 kg |
Documentation
PDFDatasheet 4,210,406Official manufacturer documentString sizing must respect the MPPT voltage and current limits and the electrical design of the system. Installation and grid connection must be carried out by qualified personnel in accordance with the applicable standards.