System Wiring Diagrams - Powerware 9170 User Manual

Isolated Output Wiring Diagrams

System Wiring Diagrams

The following notes are referenced in the isolated system wiring
diagrams (Figure 38 through Figure 41). To determine which diagram is
correct for your site, see Table 9 on page 51.
NOTE 1
stated in NEC Section 240-21 or local codes. Size the protection device
according to local code requirements (see Table 1 on page 21).
NOTE 2
UPS. To properly install, complete the voltage and phase check procedure
in "Startup for Hardwired Units" on page 68. The wires coming from the
side of the switch must be connected as described in Step 11 on page 30.
NOTE 3
connection per NEC Sections 250-20, 250-30, 250-62, and 250-64, or local
code requirements.
NOTE 4
must be the same size (ampacity), have the same rating (75°C) copper wire,
and be sized according to the input circuit breaker. The UPS input and
output conductors must be run through separate conduits.
NOTE 5
NEC Section 240-21 or local requirements. See Table 16 and Table 17 on
pages 97 and 99 for maximum output overcurrent protection device
ratings.
NOTE 6
ground receptacles. See NEC Section 250-146(d).
NOTE 7
service clearances before installing the UPS. Use flexible conduit on the
UPS or the external battery cabinet if either must be moved.
NOTE 8
Cabinet Installation" on page 57 for installation instructions.
NOTE 9
systems and not shared with other electrical circuits.
NOTE 10
X1 produces only 88V at 208V nominal output, and 93V at 220V.
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The customer must provide input overcurrent protection as
The UPS bypass switch must be installed within sight of the
The customer must provide and install this ground (earth)
All AC circuit conductors, including the neutral conductor,
The customer must provide output overcurrent protection. See
For maximum protection against electrical noise, use isolated
See "Equipment Clearances" on page 7 for installation and
External UPS battery cabinets are optional. See "Battery
UPS output circuits shall be installed in dedicated conduit
Do not connect output wiring to X1 when connecting L1 to X3.
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