LY1-C40 series surge protection device(SPD) is suitable for TN-S,TN-C-S,TT,IT etc. power supply system of AC50/60Hz, less than 275V,installed on the joint of LPZ1,designed according to IEC61463-1installed in 35mm DIN rail, there is a failure release mounted on the module of surge protective device. 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.Line - Neutral is MOV (Metal Oxide Varistor)
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