Installation guidelines
3-33
User Guide Rel 1.0 Standard May 1999
Procedure 3-10 (continued)
Installing the surge arrestor
Step Action
6
Locate the knockout in the lower right side of the AC load center, for mounting
the surge arrester (see Figure 2-8).
Note:
For maximum surge protection keep leads as short as possible when
you install the surge arrestor.
7
Remove the nut on the surge arrestor (see Figure 3-21).
8
Remove the 1/2 in. (12.7 mm) enclosure knockout on the selected mounting
location on the AC load center.
9
Insert the surge arrestor wires through the knockout hole. Do not damage
insulation on the wires.
10
Install and tighten the nut to secure the surge arrestor to the AC load center
enclosure.
11
Keep the wires as short as possible for maximum surge protection. Avoid
sharp bends.
12
Cut wires for minimum length needed and strip insulation from ends of wires.
13
Connect the white wire to the neutral bus bar according to local practices
(see Figure 3-23).
14
Connect the black wires to the equipment phase terminals according to local
practices (see Figure 3-23).
15
Replace the cover.
16
Tighten the screw.
17
Close and secure the AC compartment door.
18
Continue the cabinet installation process (see Procedure 3-11, “Connecting
ac power”).
—end—
Figure 3-21
Surge arrestor
AN0234.eps
Surge
arrestor
Leads
Nut
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