What is the TommaTech Trio Atom K 4 kW Three-Phase Inverter?
TommaTech Trio Atom K 4 kW Three-Phase Inverter is a grid-tied (on-grid) three-phase inverter with 4 kW nominal output in TommaTech's Trio Atom K family, aimed at residential-scale use. It converts the direct current from the panels into grid-compatible three-phase alternating current; thanks to two independent MPPT inputs, it can track roof surfaces facing different directions separately.
Key technical specifications
| Feature | Value |
|---|---|
| Nominal AC power | 4 kW |
| Maximum PV array power | 8,000 Wp |
| Number of MPPTs | 2 |
| MPPT voltage range | 120-980 V |
| Maximum DC voltage | 1000 V |
| Maximum efficiency | 98.3% |
| Protection rating | IP66 |
| Dimensions (W x H x D) | 342 x 434 x 144.5 mm |
| Weight | 15.5 kg |
| Noise emission | Below 30 dB |
| Cooling | Natural Cooling |
Since the maximum PV array power is 8,000 Wp, the design allows a DC/AC ratio of up to 2.0; the actual ratio is determined by the project. On the communication side there are RS485, DRM and USB for software updates; remote monitoring and smart meter connection can be added optionally via a Wi-Fi or LAN dongle.
Which projects is it suitable for?
The 4 kW class makes sense for facilities with low-to-medium monthly consumption, such as detached homes with limited roof space, small shops and country houses. It can also be chosen for buildings that have a three-phase subscription but only one sunny roof surface.
Use in Antalya and Solar Nexo support
Summers in Antalya are hot and long; panel efficiency drops with heat while air-conditioning and cooling loads peak. In this season, how the inverter performs at high ambient temperature matters. According to the datasheet, the unit can operate between -30 and +60 °C (efficiency is derated above 45 °C). On the coast, the mounting location, cable entries and earthing are done with extra care because of salty, humid air.
Solar Nexo runs the entire process with its Antalya-based team, from supplying the product to project drawings, regulatory applications, installation and commissioning; after-sales technical support also comes from the same team. The product datasheet can be downloaded from this page; you can request a site survey for a quote.
