Steca Coolcept Grid Inverter 4200- The high efficiency results in a peak efficiency of 98.6 % and a european efficiency of up to 98.3 %, which results in less lost power that must be dissipated into the environment. This improves your yields. In addition to this, a new and unique cooling concept inside the inverter ensures an even distribution of the dissipated heat and a long service life for the device. Manufacturer Steca Maximum Recommended PV Power : 5,200 Wp Max. Input Voltage : 845 V Minimum Input Voltage for Feeding : 350 V Maximum Input Current : 12 A Number of Independent MPP Inputs : No Grid Voltage : 185 V ... 276 V Rated power : 4,200 W 3 Frequency/ Range : 45 Hz ... 65 Hz Maximum Efficiency : 98.6 % Protection class : IP 21 Dimensions (length x width x height) : 340 x 222 x 608 mm Weight in kg: 9.0