C H A P T E R 4
ELECTRICAL INSTALLATION
NOTE If you have a
W A R N I N G
Only qualified service personnel (such as a licensed electrician) should perform the electrical installation. Risk of electrical shock.
The Powerware 9170 UPS input power may be hardwired through conduit to either a main power source circuit breaker or to an optional external bypass switch. For hardwired installations, it is recommended that you install a Powerware bypass switch to enable power transfer during maintenance or UPS downtime. If a bypass switch is used, both UPS input and UPS output must be hardwiredthrough separate conduitsto the bypass switch, as shown in Figure 18.
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