Tri-Phase GP Visible Disconnect Vacuum Switchgear Our new Tri-Phase GP Visible Disconnect is a three-position device that provides a means of creating a visible open and isolation point, as well as grounding cables. This device is available for use in liquid or SF6 and eliminates the need to lift elbows for cable testing to create a visible open and isolation point to promote safety. The ground position is interlocked and padlocks can be applied so that cables cannot be accidentally grounded. Interlocking handles for vacuum switch and visible disconnect with ground postion Visual open and ground window close-up