It is applicable to AC/DC power supply systems such as TN-S, TN-C-S, TT, IT, and photovoltaic systems with AC 50/60Hz, 1000V and below. 

It can be used as the equipotential connection at the interface between LPZ1, LPZ2, and LPZ3 areas. Its design basis complies with GB/T 18802.11 and IEC 61643-11. 

The shell is designed to be installed on 35mm electrical guide rails. The product has built-in failure release device. 

When the surge protector fails due to overcurrent overheating and breakdown, the failure release device can automatically disconnect it from the power grid, and the visual alarm indicator module changes from green (normal) to red (fault). 

The module can be replaced with operating voltage.