What is TommaTech Uno Home 4.2 kW Single-Phase Inverter?
TommaTech Uno Home 4.2 kW Single-Phase Inverter is the 4.2 kVA single-phase model of the Uno Home family. With two MPPT inputs, a wide operating range between 70 and 580 V and a fan-free construction, it is made for residential roofs; it is positioned as one of the mid-power steps of the family.
For 4200 VA nominal output, up to 6300 Wp of array power can be connected on the panel side; this is about 1.5 times the AC power. The maximum input current of the MPPT inputs is 12/12A; the start-up voltage is 100 V and the highest AC current is 20.1A.
Key technical specifications
| Feature | Value |
|---|---|
| Model | Uno-H-4.2 |
| Nominal AC power | 4200 VA |
| Max. PV array power | 6300 Wp |
| Max. DC voltage | 600 V |
| MPPT voltage range | 70-580 V |
| Start-up voltage | 100 V |
| Number of MPPTs | 2 (one string input each) |
| Max. AC current | 20.1A |
| Max. efficiency | 97.8% |
| European efficiency | 97% |
| Protection rating | IP65 |
| Dimensions | 341.5 × 430 × 143 mm |
| Weight | 14.5 kg |
Which projects is it suitable for?
4.2 kVA is a balanced choice for detached houses and small villas with heavy loads such as air conditioning and heat pumps.
Use in Antalya and Solar Nexo support
In Antalya's hot summers, choosing a shaded, ventilated mounting location for the inverter on the roof is important for efficiency. The wide MPPT range helps keep the array within its operating window even in hot hours when panel voltage drops. The Solar Nexo team is with you from the site survey through commissioning. The datasheet can be downloaded from the document section on the page; our engineering team can help with technical details.
