Eaton FERRUPS Rack Mount UPS (850 VA–7 kVA) Installation Guide
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164201425 Rev 1
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Chapter 6
Electrical Installation
NOTE
If you have a plug-receptacle unit, continue to “Battery Wiring” on page 69 to
connect optional battery cabinets or to the startup section in the
Eaton FERRUPS Rack Mount
UPS (850 VA–7 kVA) User's Guide
.
W
A
R
N
I
N
G
Only qualified service personnel (such as a licensed electrician) should perform the
hardwired installation. Risk of electrical shock.
Bypass Switches
The bypass switch has three positions as described in Table 10.
Table 10. Bypass Switch Positions
Switch Position
Description
LINE
Connects the load directly to AC input power and disconnects UPS
output. AC input power is still connected to the UPS input.
OFF
Disconnects the load from the UPS output power and AC input power.
UPS
Connects the UPS output to the load.
NOTE
In all three positions, AC input power is still connected to the input terminals inside
the UPS (once the UPS is installed). Use the AC disconnect switch (located on the right side
of the bypass switch) to disconnect AC input power during maintenance or service.
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