LY1-B80 3P-N-PE series surge protection device(SPD) is suitable for TN-S,TN-C-S,TT,IT etc. power supply system of AC50/60Hz, less than 380V,installed on the joint ofLPZ1 or LPZ2 and LPZ3,designed according to IEC61463-1,GB18802.1. installed in 35mm DIN rail, there is a failure release mounted on the module ofsurge protective device. When the SPD fails in breakdown for over-heat and over-current, the failure release will help electric device separate from the powersystem and give the indication signal.
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