GTConfigLite 13.2 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within System Utilities, more precisely Device Assistants.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular versions of the tool are 13.2 and 2.3. This free program was originally designed by Schneider Electric. The most frequent installer filename for the program is: GTConfigLite.exe.
From the developer:
GTConfigLite is a tool that allows you to change the factory settings of your GT Solar Inverter. These voltage and frequency disconnect settings form a vital part of the GT Inverter islanding protection.
You may want to check out more software, such as Line 6 Monkey or Family Key Logger, which might be similar to GTConfigLite.