The automatic EDS security system - Highest system security through arc detection of the used , SolarEdge inverter - Automatic system shutdown according to UL 1699B (international , Safety Standard) - Disconnection of the DC voltage when disconnected from the AC mains ..,...,. ,, according to OVE- R11-1 (national safety standard) - Technically controlled safety precautions - completely without manual , Intervention in the system - Every power optimizer comes with the unique SafeDC ™ feature , fitted - Reduction to 1 volt voltage per string when the inverter , is switched off or the mains power fails.