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Eaton 9155 UPS (8–15 kVA) User’s Guide 164201553—Rev H0
Figure 52. Maintenance Bypass Switch
NOTE:
PDM shown
The UPS-mounted bypass switch has three positions as described in
.
NOTE
In the UPS or SERVICE position, AC input power is still connected to the input terminals
inside the UPS.
Table 11. UPS-Mounted Bypass Switch Positions
Switch Position
Description
UPS
Connects the UPS output to the load.
SERVICE
Connects the load directly to AC input power and disconnects UPS output. AC input power is still connected
to the UPS input.
BYPASS
Like the SERVICE position, BYPASS connects the load directly to AC input power and disconnects UPS
output. However, because BYPASS also disconnects AC input from the UPS, this is the appropriate position
for UPS maintenance or repair.
shows a UPS with a separate battery cabinet and a UPS-mounted bypass switch.
Summary of Contents for 9155 UPS
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Page 8: ...viii Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 List of Tables ...
Page 14: ...6 Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 Introduction ...
Page 18: ...10 Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 Safety Warnings ...
Page 60: ...52 Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 UPS System Installation ...
Page 66: ...58 Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 UPS Wiring Diagrams and Schematics ...
Page 86: ...78 Eaton 9155 UPS 8 15 kVA User s Guide 164201553 Rev H0 UPS Operating Instructions ...
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