transient surge protector Can be replaced for the module not need power cut Kevin wiring mode, remote-signaling output i

       OBV7 series Surge Protector is suitable for TN-S, TN-C-S, TT, IT etc. power supply system of AC 50/60Hz, 380V, and used at the equipotential connection of LPZ0A or LPZ0B and LPZ1 zone, which protects the electric network not shocked by the thunder and lightning. It's designed according to GB18802.1, IEC61643-1, adopts 35mm standard rail, there is a failure release mounted on the module of SPD, when the SPD fails in breakdown for over-heat and over-current, the failure release will help electric device separate from the power system and give the indication signal, green means normal, red means abnormal. 

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transient surge protector