GE Industrial Solutions Spectra Series Power Panelboards AMCB2GM and AMCB3GM User Manual
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Figure 15. Installing the straps for single-phase applications with
connections to the middle vertical bus.
Figure 16. Installing the straps for single-phase applications with
connections to the middle vertical bus, isometric view.
5. Strap assembly procedure with cable connection on
the opposite side from the 2.75" distance.
For single-
phase and dc applications using the bus closest to the
bus support, go to step 5c. For single-phase and dc
applications using the middle vertical bus and the
vertical bus on the opposite side of the 2.75" reference,
go to step 5e.
5a. For three-phase assembly (kit AMCB3GM).
Position the carriage bolts [17], antiturn clips [4],
and spacers [8, 9] as shown in Figures 17 and 18.
Figure 17. Carriage bolt, antiturn clip, and spacer installation for
three-phase connnections.
Figure 18. Carriage bolt and antiturn clip installation for three-phase
connections, isometric view.
5b. Install straps.
Place the G frame single straps [5, 6,
7] over the carriage bolts and antiturn clips, as
shown in Figures 19 and 20. Place conical washers
[10] on the bolts and secure with nuts [14]. Leave
the connections finger tight.
If the group assembly selection is three-phase,
with the cable connections on the opposite side
from the 2.75" reference dimension, and the
assembly looks like Figure 20, then go to step 6.
Figure 19. Installing the straps for three-phase connnections.
Figure 20. Installing the straps for three-phase connnections,
isometric view.
5c. Connections to the outer bus of three-phase
interiors, with straps on single-phase interiors
using this assembly.
For phase-balancing
applications using the center bus go to step 5e.
Position the carriage bolts [17], antiturn clips [4],
and spacers [9] as shown in Figures 21 and 22.
Place conical washers [10] on the bolts shown and
secure with nuts [14]. Leave the connections
finger tight.
Edge of G
Frame
Edge of G
Frame
Edge of G
Frame
Edge of G
Frame
Edge of G
Frame
Edge of G
Frame