Lightning-proof Surge Protector SP1

Lightning-proof Surge Protector SP1-B ( first stage protection)
It is applicable for TT, IT, IT-S, TN-S, TN-C, TN-C-S power supply systems (50/60HZ, 230/400V AC or below).
It can release a lightning overcurrent of 100KA.
It is usually installed in the low-voltage distribution cabinet of buildings.
Lightning-proof Surge Protector SP1-C (second stage protection )
SP1-C is also can be used in TT, IT, IT-S, TN-S, TN-C, TN-C-S power supply systems (50/60HZ, 230/400V AC or below).
It can be used as Equipotential Bonding while there is lightning.
It’s mainly used to protect low-voltage electric devices and avoid surge current.
As a single-voltage limiting device, it is equipped with heavy Zinc Oxide Varistor.
Lightning-proof Surge Protector SP1-D (third stage protection )
SP1-D is also can be used in TT, IT, IT-S, TN-S, TN-C, TN-C-S power supply systems (50/60HZ, 230/400V AC or below).
It can release a lightning overcurrent of 20KA.
Usually, SP1-D is also installed in the low-voltage distribution cabinet of buildings.