Rooftop distributed photovoltaic has been used extensively in China, the United States, Australia, Europe and Japan. As the application closest to the human activity area, how to ensure personal safety, how to prevent the fire risk of photovoltaic facilities, how to ensure that non-professional personnel identify and cut off the risk in the first time, has become a widespread concern of all countries.
Based on the market demand, PROJOY has successively launched series of products of String level PEFS-EL and panel level PEFS-PL.
String inverter is widely used in Residential & Commercial Rooftop. The DC Isolator integrated in the inverter, the main function is to cut off the inverter dc when maintenance, but for the roof to the inverter part of the DC (600~1500V) powerless. In case of fire, firefighters may be exposed to very serious potential hazards. Firefighters will shut down the AC before putting out the fire, the PEFS series firefighter safety switch will detect the grid failure, and after 5 seconds, the PEFS will automatically turn off the isolation switch.