
38 Rockwell Automation Publication 1608P-UM005A-EN-P - November 2014
Chapter 6 Maintenance
Transient Voltage Surge Suppressor (TVSS)
The HC-DySC includes an internal TVSS device (or SPD), protecting the
output (load). Indicator lights on the TVSS show if surge protection is not active
(internally disconnected). Power to the TVSS module may be removed by
opening the block of fuses F16-F17-F18 and F19 (present in 4-wire models
only).
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