ZU30 series surge protectorDetailed product description：

The ZU30-B surge protector is suitable for TN-S, TN-C, TN-C-S, TT, IT and other power supply systems with AC 50Hz/60Hz, 380V and below. It is used for equipotential connection at SPD-1 in the SPD installation diagram to protect the power grid from lightning strikes or surge overvoltage. Its design complies with IEC61643-1 and GB18802.1 standards. The product is equipped with a built-in failure disengagement device. When the surge protector fails due to overheating or breakdown, the failure disengagement device can automatically disconnect it from the power grid. At the same time, the visual alarm indicator changes from green to red. The product can optionally have a remote communication contact function. The remote communication contact is a normally open contact. If one or more modules of the surge protector fail, the contact will close and send out a fault signal, achieving remote monitoring. The protection module can be replaced when there is voltage present.