Specifications

UPS SYSTEM INSTALLATION

Eaton 9395 UPS (450–825 kVA) Installation and Operation Manual  164201725 Rev 4 www.eaton.com/powerquality

4-24

Use the procedures in the following paragraphs to connect the external and battery

power wiring.

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 4‐21 for the hardware sequence when installing

the lugs to the bus bars. Tighten the nut to the torque value listed in Table 3‐11.

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

Figure 4‐21. Typical Bus Bar Barrel Lug Mounting – Hardware Assembly SequenceFigure 4‐21. Typical Bus Bar Barrel Lug Mounting – Hardware Assembly

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