SMA is represented in all important photovoltaics markets in 19 countries on four continents and reached a sales volume of EUR 1.7 billion in 2011.

SMA Range

Sunny Boy Range

Perfection Plus. Usability. The transformerless Sunny Boy generation

More communicative, easier to use and more efficient than ever: this Sunny Boy is setting new standards in inverter technology. A modern graphic display, readout of daily values even after sunset, simplified installation concept and wireless communication via Bluetooth®: The new Sunny Boys fulfill every wish.

With the new OptiTrac Global Peak shade management and an optimal efficiency of 97 %, the inverters ensure optimum solar yield. As transformerless, multi-string devices, the Sunny Boy 4000TL and 5000TL provide maximum flexibility for plant design, and are the first choice for demanding generator designs.

3000TL / 4000TL / 5000TL

The transformerless Sunny Boy generation


High Yields

  • Maximum efficiency of 97 %
  • Multi-String technology*
  • Transformerless, with H5 topology
  • Shade management with OptiTrac Global Peak


  • Integrated ESS DC switchdisconnector


  • Easily accessible connection area
  • Cable connection without tools
  • DC plug system SUNCLIX


  • Bluetooth® technology as standard
  • Multilingual graphic display
  • Multi-function relay as standard

About SMA

Energy that Changes

SMA Solar Technology AG is a global leader in the development, production and sales of PV inverters and, as an energy management group, offers innovative key technologies for future power supply structures. SMA is represented in all important photovoltaics markets in 19 countries on four continents. The company has a staff of over 5,500 and reached a sales volume of EUR 1.7 billion in 2011.

Inverters are the heart of every PV plant
Technologically, the inverter is the most important component of a PV plant. It converts the direct current generated in the photovoltaic cells into alternating current compliant with the grid requirements – for self-consumption or feed-in to the power distribution grid. As an intelligent system manager, it also monitors both the PV array and the power distribution grid. SMA inverters already perform important grid management functions, which are becoming increasingly important as electricity production from renewable sources grows. SMA has been developing leading technological solutions and pioneering trends in this area for years and is driving future-oriented topics. For instance, these include intelligent energy management at a household level, grid integration of solar power and connecting storage facilities for more effective use of renewable energy.