LY1-D2031 surge protection device(SPD) is suitable for TT power supply system of AC50/60Hz, less than 380V,installed on the joint of LPZ1 or LPZ2 and LPZ3,designed according to IEC61463-1,GB18802.1.
LY1-D20 3P-N-PE Three phase AC surge protection device 20KA
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