Lever Operated Furnace Changeover Switches are made using ETP grade copper and 100% silver contacts. These Furnace Changeover Switches are available in 2 crucibles and is operated with lever. These Furnace Changeover Switches are offered in a robust construction that ensures optimum performance for loner period of time. Lever Operated Furnace Changeover Switches combine features like durability, energy efficiency and easy installation.