VFI Vacuum Fault Interrupter Switchgear
VFI underground distribution switchgear provides an environmentally preferred, safer, and more reliable approach to medium-voltage switching and protection, with optional advanced intelligence. Dead-front construction and enhanced operating features provide added safety. All internal parts are completely immersed within a sealed insulating medium. A variety of fluid and gas insulating media are available, including E200 – a fire-resistant, non-toxic, biodegradable, liquid dielectric coolant.