GE Industrial Solutions Spectra Series Power Panelboards Bolt-On Main Lug Kits - Manual

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Spectra Series™ Power Panelboards
Bolt-On Main Lug Kits
Application
These instructions apply to main lug kits with the
following catalog numbers. An “F” suffix indicates that the
kit includes all cover plates.
AMB2120N(F) AMB3120N(F) AMB2120DN(F)
AMB3120DN(F) AMB2250CA(F) AMB3250CA(F)
AMB2600CA(F) AMB3600CA(F) AMB2800CA(F)
AMB3800CA(F) AMB2120CA(F) AMB3120CA(F)
AMB2250DCA(F) AMB3250DCA(F) AMB2600DCA(F)
AMB3600DCA(F) AMB2800DCA(F) AMB3800DCA(F)
AMB2120DCA(F) AMB3120DCA(F)
Installation
WARNING: Danger of electrical shock or injury.
Turn OFF power ahead of the panelboard or
switchboard before working inside the
equipment or removing any component
.
Equipment is to be installed and maintained by
properly trained and qualified personnel only.
1. Orient the lug base with the lug wire holes facing the
end of the box stamped LINE or toward the line side of
the interior, as illustrated in Figure 1.
Figure 1. Lug assembly orientation.
2. Locate the mounting position. For Spectra APNB bolt-
on style interiors, locate the side of the panelboard
interior in which the dimension from the nearest bus
face to the inner face of the bus support rail is 2.75
inches, as shown in Figure 2. The lug straps will be
mounted on this side of each phase of the bus.
Figure 2. Lug strap positions relative to the bus bars of a Spectra
APNB bolt-on interior.
For Spectra APN plug-in style interiors, the lug straps
are positioned between the buses for each phase, as
shown in Figure 3. For Spectra APN interiors rated at
600 A or less, the lug tangs are positioned as described
above for Spectra APNB interiors.
Figure 3. Lug strap positions relative to the bus bars of a Spectra
APN plug-in interior.
DEH071 Installation Instructions R02
Line Side
Lug
Strap Bus
Carriage
Bolt
Nut, Flat
Washer,
Conical
Washer
Lug
Strap Bus
Carriage
Bolt
Nut, Flat
Washer,
Conical
Washer