GE Industrial Solutions Spectra Series Power Panelboards AMCB4EY and AMCB6EY - Manual

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Spectra Series™ Power Panelboards
Bolt-On Circuit Breaker Kits
Application
These instructions apply to bolt-on circuit breaker kits
with catalog numbers AMCB6EY and AMCB4EY.
For use with circuit breaker type TEY.
For use with circuit breaker cover kit AFP3EYD.
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.
In the following instructions, numbers in brackets in the
text and figures refer to the items in Table 1.
1. Confirm the contents of the kit. These kits are used to
install TEY circuit breakers into Spectra APNB bolt-
on–style interiors. The parts included in these kits are
listed in Table 1.
Item Description
Qty. in
AMCB4EY
Qty. in
AMCB6EY
1 A pole strap assembly 1 1
2
Carriage bolt, 1 / 4 -20 x 1 1 / 2 "
Carriage bolt, 1 / 4 -20 x 1" *
2 3
3 Conical spring washer, 1 / 4 " 2 3
4 Nut, 1 / 4 -20 2 3
5 B pole strap assembly 1 1
6 C pole strap assembly 1 1
7 Lower mounting bracket 2 2
8 Thread-forming screw 4 4
9 Upper mounting bracket 2 2
10 Screw with lockwasher,
#8-32 x 1 / 4 "
4 4
11 B-phase isolator 1 1
12 Antiturn clips 2 3
* For use with a vertical bus rated at 600 A or less.
Table 1. Parts included in kits AMCB4EY and AMCB6EY.
2. Locate the side of the interior with a 2.75-inch
reference distance. The circuit breaker straps are
mounted on the side of the panel interior bus at
which the distance from the nearest vertical bus face
to the inner face of the bus-support rail is 2.75 inches,
as indicated in Figure 2.
3. Install the circuit breaker straps. For three-phase
applications (kit AMCB6EY), install the straps
beginning with the pole farthest from the 2.75-inch
dimension, as shown in Figures 1 and 2. Slide an
antiturn clip [12] over the square shank of a carriage
bolt [2], then insert the bolt assembly into the A phase
bus, with the head opposite the 2.75-inch dimension.
Position the square hole of the A pole strap [1] onto
the bolt, with the pin of the antiturn bracket inserted
into the small hole in the strap. Secure with a conical
spring washer [3] and nut [4], leaving the connection
finger tight. Repeat the process for the B pole strap
[5] and C pole strap [6].
For single-phase panels, dc applications, and phase-
balancing purposes (kit AMCB4EY), Table 2 lists the
possible configurations. Align the appropriate strap
assemblies [1, 5, 6] with the corresponding holes in
the vertical bus, as shown in Figures 1 and 2. Fasten
each strap assembly loosely to the vertical bus with a
carriage bolt [2], conical washer [3], and nut [4], as
described for the three-phase kit. When installing any
of the two-pole strap configurations in Table 2, be sure
to install the straps in standard phase-rotation order.
When installing a two-pole and a three-pole breaker in
a double-branch assembly, arrange the straps in the
typical three-pole configuration, as shown in Figure 2.
Application A Phase B Phase C Phase
X
X Single pole
X
X X
X* X* Two pole
X X
* Use for single-phase panels and dc applications.
Table 2. Possible pole configurations with kit AMCB4EY.
4. Install the lower circuit breaker mounting brackets
and cover supports. Attach the lower breaker
mounting brackets [7] to the panel side rails with the
thread-forming screws [8], as shown in Figure 1.
Tighten the screws to 35 in-lb. Slide the cover supports
(included in the breaker cover kit), with the
mounting tabs oriented inward, onto each bracket
until they snap into place, as shown in Figure 1. Use
the uppermost slot on the cover support body. Cover
supports can be easily removed by inserting a
screwdriver blade into the slot on the underside of the
mounting bracket assembly and gently prying
downward while pushing the support off.
DEH062 Installation Instructions R02