User's Guide Power Supply 9170

Electrical Installation

Powerware

9170 User's Guide  LTM-1344 B Uncontrolled Copy

System Wiring Diagrams

The following notes are referenced in the non-isolated system wiring

diagrams (Figure 28 through Figure 33). To determine which diagram is

correct for your site, see Table 5 on page 35.

NOTE 1 The customer must provide input overcurrent protection as stated in NEC

Section 240-21 or local codes. Size the protection device according to local code

requirements (see Table 1 on page 26).

NOTE 2 The UPS bypass switch must be installed within sight of the UPS. To properly

install, complete the voltage and phase check procedure in Startup for Hardwired

Units" on page 53. The wires coming from the side of the switch must be connected as

described in Step 10 on page 33.

NOTE 3 All AC circuit conductors, including the neutral and equipment grounding

conductors, 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 4 The customer must provide output overcurrent protection. See NEC

Section 240-21 or local requirements. See Table 13 on page 78 for maximum

output overcurrent protection device ratings.

NOTE 5 See Equipment Clearances" on page 7 for installation and service

clearances before installing the UPS. Use flexible conduit on the UPS or the external

battery cabinet if either must be moved.

NOTE 6 External UPS battery cabinets are optional. See Battery Cabinet Installation"

on page 17 for installation instructions.

NOTE 7 UPS output circuits shall be installed in dedicated conduit systems and not

shared with other electrical circuits.