GE Industrial Solutions Spectra Series Power Panelboards AMC3KM and AMC2KM - Manual (Page 3)

Figure 6. Securing the contact block to the studs and straps.
c. SKHA, SKLA, and SKPA circuit breakers used as
main devices (lugs only on the ON side of the
breaker).
Place the contact blocks [8] on the OFF
side of the circuit breaker terminal pads and then
place the OFF side of the breaker over the stud
posts, as shown in Figure 4. Fasten the breaker to
the module with the round-head screws, small lock
washers, and flat washers provided. Secure the
contact blocks with hex nuts, small flat washers, and
large lock washers. Secure the straps to the contact
blocks with hex-head bolts, large flat washers, and
large lock washers, as shown in Figure 6. Tighten
the screws to 35–50 in-lb and the nuts and bolts to
200–250 in-lb.
Secure the barrier to the module base in front of
these connections with #10 thread-cutting screws, as
shown in Figure 8. Tighten the screws to 25 in-lb.
d. All circuit breaker types except SKPA used as
branch devices (lugs only on the OFF side of the
breaker).
Place the ON side of the circuit breaker
over the stud posts. Fasten the breaker to the
module with the round-head screws, small lock
washers, and flat washers provided, as shown in
Figure 4. Place the contact blocks on the stud posts.
Place spacer sleeves onto the contact block and
secure each with a hex nut, small flat washer, and
large lock washer. Secure the straps to the contact
blocks with hex-head bolts, large flat washers, and
large lock washers, as shown in Figure 5. Tighten
the screws to 35–50 in-lb and the nuts and bolts to
200–250 in-lb.
e. SKPA circuit breakers (only) used as branch devices
(lugs only on the OFF side of the breaker). Place the
ON side of the circuit breaker over the stud posts.
Fasten the breaker to the module with the round-
head screws, small lock washers, and flat washers
provided, as shown in Figure 4. Remove the
knockouts from the bottom lug cover, place the lug
cover over the straps, as shown in Figure 7, and
fasten according to the circuit breaker instruction
GEH-5592. Place the contact blocks on the stud
posts. Place spacer sleeves onto the contact blocks
and secure each with a hex nut, small flat washer,
and large lock washer. Secure the straps to the
contact blocks with hex-head bolts, large flat
washers, and large lock washers, as shown in Figure
7. Tighten the screws to 35–50 in-lb and the nuts
and bolts to 200–250 in-lb.
Install the large top cover according to the circuit
breaker instruction GEH-5592.
Figure 7. Securing the contact block to the studs and straps for an
SKPA breaker used as a branch device.
Figure 8. Attaching the barrier to the module base.
5. Wire the circuits. Refer to the label on the circuit
breaker for the proper tightening torque.
6. Filler plate kits. Install filler plate kit AFP6SKS for
AMCSKM and AMC2KM modules.
Hex Nut
Large Lock
Washer
Small Flat
Washer
Stud
Post
Contact
Block
Large Flat
Washer
Hex-Head
Bolt
Large Lock
Washer
Hex Nut
Large Lock
Washer
Small Flat
Washer
Stud
Post
Contact
Block
Large Flat
Washer
Hex-Head
Bolt
Large Lock
Washer
Spacer
Sleeve
Straps
Remove
Knockouts
This Side Toward
Circuit Breaker
Self-Tapping
Screw
Barrier