132 Product manual - PVS-175-TL;A.1 Version
EN
7. Operations on internal AC disconnect Switch (09) (only -S2, -SX2 models)
NOTE – D This operation can be done only in case of wiring box -S2, -SX2 models. The wiring box
-S, -SX models doesn’t include the AC switch (09).
• Open the main AC disconnect switch (09) (shown in blue in the picture below).
PV Strings
External DC
Switch
Internal DC
Switches
Internal AC
Switch
PVS-175-TL
(Unit under service)
PWRMOD
WBOX
OPEN+LOTO
PV Strings
External DC
Switch
Internal DC
Switches
Internal AC
Switch
PVS-175-TL
PWRMOD
WBOX
External LV
AC Switch
External Main LV
AC Switch
External LV
AC Switch
LV Distriubution
Panel
MW Switch
LV/MW
Transformer
OPEN+LOTO
OPEN
+
LOTO
•
Affix designated lock preventing operation onto AC disconnect switch (09), affixing designated tags
(LOTO procedure).