... inverters with high efficiency. With aluminum housing, Integrated interface system, they are light and handy, making installation easier. ... 200-270 (AS4777); 184-276(ENEL Guide line)Grid Frequency50Hz/60HzPower factor≥0.99(at nominal power)Output ... , DC isolation monitoring , DC monitoring,Grounding fault monitoring , Grid monitoring , Island protection , Short circuit protection , Over temperature ...