surge protective device

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surge protective devices are used for lightning and overvoltage protection in AC50/60Hz, 230/400V. The product is with an internal nonserviceable separating device. When the surge protective devices is overcurrent or overvoltage and the puncture is nonsevice able, the nonserviceable separating device will automatically separate from the protector from the electrical network. And simulaneously the position display windw will turn red from green. Class One Lightning Protection(Protection Class:B)Class B lightning current SPD protection is used for equal potential connection when lightning. It is installed between LPZ0 A zone or LPZ0B zone and LPZ1 zone and widely used for over-voltage protection in all kinds of Class 1 power supply (Class B). The protector is usually installed in the incoming line of the main low voltage power distributing cabinet or the main low voltage switch cabinet in the building.

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three stars computer communication company

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