20 S&C Instruction Sheet 465-500
Troubleshooting
Table 1. Troubleshooting
Condition
Description
Action
The vacuum interrupter is in the
Closed (red
target) position and the white LED is fast-
blinking at one-second intervals .
The VacuFuse interrupter is in
Abnormal
mode and may no longer be capable of
interrupting fault current .
Open the VacuFuse interrupter using
the OPEN/CLOSE lever . If the VacuFuse
interrupter will not open, bypass or
de-energize the VacuFuse interrupter
and remove it from its cutout mounting or
open and de-energize it using Loadbuster®—
The S&C Loadbreak Tool . Return the
VacuFuse interrupter to S&C Electric Company
for service .
The vacuum interrupter cannot be closed
using the VacuFuse interrupter’s OPEN/
CLOSE lever .
The VacuFuse interrupter is in
Abnormal
mode .
Remove the VacuFuse interrupter from its
cutout mounting and return it to S&C Electric
Company for service .
