The Ultra Series vacuum switch is a solid dielectric, single pole device
designed in conformance with ANSI Standard C37.66. The switch is
constructed of a high performance vacuum interrupter fully
encapsulated within a solid cycloaliphatic epoxy dielectric compound.
The product may be used to switch capacitor banks, control lighting
circuits and sectionalize power.
The vacuum switch can be operated electrically or by the manual
lever. During electrical operation, the motor torque output is
amplified by a permanently lubricated, steel-to-steel gear train
enclosed in a corrosion resistant steel tank. Motor actuation occurs
via a patented toggle link system.