This series of fuses is suitable for lines with rated DC voltage up to 1500V and rated current up to 50A. It is connected in parallel with photovoltaic panels and batteries to make short-circuit protection for charging converter system. At the same time, for photovoltaic power station, convergence inverter rectifier system and Short-circuit fault breaking protection; and short-circuit protection for inrush current and short-circuit fault over-voltage of photovoltaic power generation system, rated breaking capacity is 20KA, and the product complies with international and national standards GB13539.6, and IEC60269-6.