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  • Product Overview
  • SPD has the General
    SPD surge protective device is suitable for three-phase power distribution and controlling system under the circuit of AC 50Hz/60Hz, rated voltage 230V/400V.It is used to suppress the attacking overvoltage through equipments ,and release surge power so as to protect systematic circuit and equipments.
     
    SPD Selection of surge protective
    Selecting surge protective device should refer to the following principles
    Voltage imposed between the two terminals of the surge protector device continuous operational voltage Uc value of surge protective device;
    Voltage protection level of surge protective device should be less than the limit of the equipment protected;
    Select corresponding specifications according to different earth system and protecting mode





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