Surge Protection อุปกรณ์ป้องกันฟ้าผ่า
SKU : SPD TYPE 1 + TYPE 2 (25 kA)
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combination of varistor surge arrester and encapsulated spark gap, connected in the 3+1 mode
installation to LV installations, especially to sub-distribution boards in TT and also TN-S systems
for protection of the installations and equipments against impact of induced overvoltages during a lightning strike or switching overvoltage
