
VS 11
Three-phase string inverter 11 kW
- Optimised wiring - up to 1000 V DC voltage per string
- Highest yields – peak efficiency factor of 98.0 %
- Wide range of applications – outdoor installation (IP 65) in temperature range of up to +60 °
- Winner red dot award: product design 2010
Efficiency
Thanks to the innovative patented VTL topology Voltwerk inverters can reach peak efficiency factors of 98.0 %. The new technology also ensures highest European efficiency factors of up to 97.4 %. The exceptionally fast and precise MPP tracking guarantees that there is no loss of output in case of irradiation changes.
Reliability
The new patented PowerCool cooling concept optimises heat distribution in the inverter. The sophisticated cooling system and the high-quality components prevent premature ageing of the power electronics and guarantee a maximum service life expectancy for the inverters. The protection type IP 65 and the ambient temperature range of -20°C to +60°C allow an installation of the inverters in practically any environment.
Flexibility
Due to the wide input voltage range of the VS series, modules can be flexibly wired. The high input voltage (UDC = up to 1000 V) permits maximum string lengths for low string losses and cost-effective photovoltaic module wiring.
Solar generator optimization
Voltwerk string inverters allow an immediate documentation of the current-voltage-curve. Thereby in particular cases wiring faults can already be determined and eliminated during commissioning on site.



