Efficiency when switching electrical circuits is vital in modern electrical systems. Contactors help to control electrical circuits efficiently. They function in a vacuum to control arcing when circuits are in the process of switching, allowing for an increase in the lifespan of the device. Zhejiang Greenpower Electric Co., Ltd has vacuum contactors for both low and medium voltage applications. We have designed and manufactured equipment to world standards for over 30 years and meet the expectations of a diverse global customer base.