What is TommaTech Uno Atom 1.1 kW Single-Phase Inverter?
TommaTech Uno Atom 1.1 kW Single-Phase Inverter is a 1.1 kVA single-phase inverter sized for the needs of small grid-connected systems. Thanks to its single MPPT input, natural cooling and small 267 × 328 × 116 mm housing, it fits easily into tight technical spaces; it is positioned as one of the mid-power steps of the family.
At this power level the upper limit for the PV array is 1650 Wp, which is about 1.5 times the nominal AC power and lets the inverter use its rated power for longer as irradiance changes through the day. The maximum input current is 12A, and the highest AC current at the output is 5.3A.
The low start-up voltage (70 V) and the MPPT lower limit, which goes down to 55 V, help production start even in the morning and evening hours when irradiance is weak.
Key technical specifications
| Feature | Value |
|---|---|
| Model | Uno-A-1.1 |
| Nominal AC power | 1100 VA |
| Max. PV array power | 1650 Wp |
| Max. DC voltage | 400 V |
| MPPT voltage range | 55-380 V |
| Start-up voltage | 70 V |
| Number of MPPTs | 1 |
| Max. AC current | 5.3A |
| Max. efficiency | 97.1% |
| Protection rating | IP65 |
| Dimensions (W × H × D) | 267 × 328 × 116 mm |
| Weight | 6 kg |
Which projects is it suitable for?
The 1.1 kVA class; suitable for small roofs, terrace and garden arrays, tiny installations that cover a single critical load during the day, and those who want to start their first solar investment small.
Use in Antalya and Solar Nexo support
Summer heat and coastal humidity are priority issues for installations in Antalya. The naturally cooled, fanless Atom series reduces the risk of dust and moisture ingress. Solar Nexo designs, installs and commissions this inverter based on your roof data. You can download the datasheet from the document section of the product page and compare the technical data against your project.
