G&W model VTVI vault switches include load break and fault interrupting capability. The load break switch features visible break and integral ground position. The integral ground position eliminates the need to handle any high voltage connections to ground the cable connected to the load break ways. The fault interrupters provide electronically controlled, resettable over current protection in a totally sealed, dead front device. The VTVI can be configured to provide 1-phase or 3-phase operation of the fault interrupting ways. The switches are designed for use on 3-phase systems with voltages up to 38kV, 630A load break and continuous current, with 12.5kA and 20kA symmetrical fault interrupting ratings. The VTVI works well for vault style applications because it features front accessible switch operators and bushings (front access) so it can fit within tight sub surface vaults or equipment rooms.
The switches are designed to IEEE C37.71, C37.74, and C37.60 for load break and fault interrupting capability.