Eaton 9E - UPS System Power Wiring Preparation

UPS Installation Plan and Unpacking
3-6 Eaton 9E UPS (40–60 kVA, 208/220V) Installation and Operation Manual P-164000058—Rev 4 www.eaton.com/powerquality
Figure 3-4. Remote EPO Switch Dimensions
3.2.2 UPS System Power Wiring Preparation
Read and understand the following notes while planning and performing the installation:
WARNING
As a result of the connected loads high leakage current is possible. Connection to earth ground is
required for safety and proper product operation. Do not check UPS operation by any action that
includes removal of the earth (ground) connection with loads attached.
l
Refer to national and local electrical codes for acceptable external wiring practices.
l
To allow for future kVA upgrades, consider installing a derated UPS using wiring and external overcurrent
protection breakers sized for a fully rated UPS.
l
For external wiring, use 90°C copper wire. Wire sizes listed in Table 3-4 are for copper wiring only. If wire is
run in an ambient temperature greater than 30°C, higher temperature wire and/or larger size wire may be
necessary. Wire sizes are based on using the specified breakers.
l
Wire ampacities are chosen from Table 310-16 of the National Electrical Code
®
(NEC
®
). Specification is for
copper wire with a 90°C rating.
l
Material and labor for external wiring requirements are to be supplied by designated personnel.
l
If installing an external maintenance bypass, all feeds to the UPS including the Rectifier Input Breaker (RIB)
(if installed) must have a service disconnect independent of the maintenance bypass power path. Most
maintenance bypass solutions provide UPS input feeds derived from but isolated from the maintenance
bypass power path. If the maintenance bypass solution being installed does not provide such functionality,
DO NOT use a single feeder breaker to supply both the UPS and the maintenance bypass.
115.8
[4.56]
114.3
[4.50]
0.87
[0.22]
88.9
[3.50]
1.57
[0.40]
95.3
[3.57]
Front View
1/2" Knockout Pattern
(Typical 5 Sides
Needed to
remove key
(Square)
Dimensions are in millimeters [inches]