五月婷婷婷综合色,日韩在线一区二区三区,日韩精品中文字幕第1页,欧美日韩国产精品中文

<th id="rres4"><button id="rres4"></button></th>
    1. <address id="rres4"></address>
    2. <label id="rres4"></label>
      Green Erengy Green Future

      Green Erengy Green Future

      Home > Products > 3 cases of class Wire Cables Medium voltage switch Low voltage switch Cooperation brand medium voltage unit Power transformer YBM 3 cases of class Surge arrester Electricity meter box Water pump

      XL Low-voltage switchgear

      Product type：3 cases of class

      XL Low-voltage switchgear     Three boxes     

      For power distribution and lighting distribution in three-phase four-wire power systems with AC frequency of 50Hz, rated operating voltage and rated insulation voltage of 380V, 690V and rated operating current up to 1250A in industrial and civil buildings. To provide protection against overload, short circuit and leakage in the line and to transform the circuit downstream.