UPS System Installation
4-20
Power Xpert
TM
9395 UPS (450–825 kVA) Installation and Operation Manual 164201725—Rev 10
www.eaton.com/powerquality
4.8.1
2
Hole Barrel Lug Terminations to Bus Bar Installation
Paragraphs 4.8.2 and 4.8.3 require connecting input, output, and battery power wiring using 2-hole barrel lugs.
See Figure 4-17 for the hardware sequence when installing the lugs to the bus bars. Tighten the nut to the
torque value listed in Table 3-12.
Figure 4-17. Typical Bus Bar Barrel Lug Mounting – Hardware Assembly Sequence
NOTE
Conical washers are special purpose washers that look similar to flat washers,
except for a slight conical shape. When installing conical washers, the top of the
dome should be next to the nut and the base of the washer should be against a flat
surface such as a bus bar, flat washer, or large terminal.
Hex Nut
Conical Washer
Lug
Bus Bar
Flat Washer
Bolt Head
Lug
Flat Washer
Hex Nut
Conical Washer
Lug
Bus Bar
Flat Washer
Bolt Head
Flat Washer
Single Lug Installation
Double Lug Installation
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