INTERNAL BYPASS SWITCH INSTALLATION
Eaton FERRUPS FE/QFE UPS (500 VA–18 kVA) Installation Guide S 164201403 Rev B
www.eaton.com/powerquality
47
C A U T I O N
To prevent electrical shock or damage to your equipment, verify that the AC input is OFF at
the service panel and the bypass and AC disconnect switches are in the OFF position before
you connect any wires to the bypass switch terminal strip.
5. Find the terminal strip inside the bypass switch. Using the label on
the back of the switch's lower front cover panel, wire the terminal
strip and tighten all connections securely. Use copper wire and the
appropriate wire size for the current. See Figure 16 for a sample
terminal strip label.
Figure 16. Internal Bypass Switch (BPI) Terminal Strip Label
6. Using the installation wiring diagram, wire the UPS-internal bypass
terminal strip and complete the AC wiring.
NOTE Terminal strip connections should be exactly as shown in the installation wiring
diagram to ensure proper phasing. Good ground connections are necessary to reduce
electrical noise and ensure safe operation of the UPS and the load.
7. If your UPS does not have an external battery cabinet(s), continue
to “Phase Check” on page 67.
If your UPS has an external battery cabinet(s), continue to “External
Battery Cabinet Installation” on page 55.
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