This series of surge protectors is suitable for TT, IT, TN-S, N-C-S and other power supply systems with AC 50Hz, 380V and below, and can be used as equipotential connections at the interface of LPZ1, LP22 and LP23 zones. Its design basis complies with IEC61643-1 and GB18802.1, and the shell is designed to be installed on a 35mm electrical guide rail. The product has a built-in failure disengagement device. When the surge protector fails due to overcurrent, overheating, or breakdown, the failure disengagement device can automatically disconnect it from the power grid, and the visual alarm indicator window changes from green (normal) to red (fault).
