Reliable Power Switching and Motor Starting Solutions for the Mining Industry

Due to the hazardous nature of the mining industry, reliable power switching and motor starting is critical. Vacuum contactors help control motors in underground mining equipment. However, vacuum contactors will withstand the elements both inside and outside the mine.

The Joslyn Clark line of low and medium voltage vacuum contactors provides a compact design with unique features and numerous safety benefits, resulting in a simple, safe, and maintenance-free starter for the mining industry.

• Available in NEMA sizes 4, 5, and 6, Joslyn Clark's series of USAVAC® vacuum contactor products enclose the power contacts inside a vacuum chamber. This design feature makes the vacuum contactor more resistant to harsh environments, compact, quiet, and long-lived.
• Fully phase insulated. All materials that go into a Joslyn Clark vacuum contactor are subject to rigorous chemical and analytical testing. Our vacuum contactor uses high alumina ceramics for their high temperature and favorable out-gassing characteristics.
• Additionally, our proprietary contact material is proven for superior transient voltage generation control.