The product vacuum arcing chamber adopts porcelain insulation case, the contactor adopts wolfram and copper material, it has the advantage of reliable performance, long life, small volume, no explosion danger, no pollution environment.

• 该型号真空灭弧室采用陶瓷绝缘外壳，触头采用钨铜材料，具有性能可靠、寿命长、体积小、无爆炸危险，不污染环境等优点。