The PRIMO inverter with a single-phase grid connection is intended solely as a replacement inverter for existing systems that require a replacement for inverters compliant with VDE 0126-1-1 (ENS standard). This inverter is not certified for the Low Voltage Directive (VDE-AR-N 4105) in Germany, and therefore, the use of the PRIMO in new installations in Germany is not possible. It features an integrated DC disconnect switch, is suitable for indoor and outdoor installation, and has an ambient temperature range of -40 °C to +55 °C. Additionally, it offers Wi-Fi, Ethernet LAN, and a web server, 6 inputs, and 4 digital inputs/outputs for connecting control receivers, a Type A USB port, 2x RS422 (RJ45 socket), an S0 input, and a reporting output. The efficiency is 97.9%. Please note: The FRONIUS manufacturer warranty can only be granted with online registration by the end customer (owner of the PV system).