GE Industrial Solutions Spectra Series Power Panelboards AMB Main Lug Kit User Manual

Page 2

Figure 4. Bus bar mounting holes.

4. Fasten lugs to the bus.

Fasten the lug tangs to the bus

using a carriage bolt, flat washer, Belleville washer,
and nut, making certain that the carriage bolt is fed
through the bus first, as shown in Figures 2 and 3.
Tighten these bolted connections to 200–250 in.-lb.

5. Install the wire barriers.

Position the upper edge of

the wire barriers flush with the panel side rails or Z
rails, as shown in Figure 5. Fasten the wire barriers to
the panel side rails or Z rails using the thread-forming
screws supplied.

Figure 5. Installing the wire barriers.

6. Wire the lugs

using the conductor sizes and tightening

torques listed in Table 1.

Lug Part No.

Torque,

in.-lb.

Wire Size

(# of wires)

252B3638G9–10

375

8–500 kcmil (1)

#2/0–600 kcmil (1)

252B3638G1–2

450

2/0–600 kcmil (4)

252B3638G3–8

450

2/0–600 kcmil (8)

GEA2-750

475

3/0–750 kcmil (2)

Table 1. Recommended tightening torque and wire sizes.

7. Install the cover.

Lug kits whose catalog numbers have

an F suffix include AFPML cover plates. Covers are
included for the following box sizes: 27" and 31" wide,
36" and 40" wide, and 44" wide. Choose the
appropriate cover for the box to be used.
Attach the cover to the barriers in four places with the
screws and nut fasteners provided, as shown in Figure
6. Tighten the screws to 25–30 in.-lb.

Figure 6. Installing the cover.

These instructions do not cover all details or variations in
equipment nor do they provide for every possible
contingency that may be met in connection with
installation, operation, or maintenance. Should further
information be desired or should particular problems arise
that are not covered sufficiently for the purchaser’s
purposes, the matter should be referred to the GE
Company.

GE Industrial Systems

General Electric Company
41 Woodford Ave., Plainville, CT 06062

DEH070 R02 1001

Mounting Holes

Wire

Barrier

Panel Side

Rail

Thread-

Forming

Screws

Cover

Barrier

Screw

Nut