Square-D brand
load centers can be used for multiple purposes, for wiring that meets
the National Electric Code (NEC). All of these can be used as AC load
centers or sub-panels. Panels using QO plug in breakers are rated up to
50 VDC for use as 12V or 24V DC load centers. They can also be used to
combine the AC output from multiple inverters feeding the grid. When
used as DC load centers they should be protected by a high interrupt
capacity fuse or circuit breaker between the load center and the
battery. Use one of the Class T or Class R fuses, or the DC breakers
used in the OutBack and Xantrex DC power centers.
When used to combine the AC output of multiple grid-tie inverters,
and meet the requirements of NEC 690.64(B)(2) the bus amp rating for
the load center must be larger than the sum of all of the overcurrent
devices feeding it, from both the utility and all inverters.
The 277/480V load centers can be used to combine the output from
multiple inverters to feed a 277Y/480VAC grid interconnection. One 30A
continuous duty breaker is used for each inverter that is set up for
277V hot to neutral.
Load centers are not supplied with any breakers – order conduit hubs
for outdoor load centers, and breakers, separately.
|
Spaces
(single)
|
Bus
amp rating
|
Outdoor
|
Cover
|
Max
wire in main lug
|
Ground
kit for this unit
|
Dimensions
(inches)
H
x W
x D
|
Weight
lbs
|
Square-D
model
|
Item
code
|
|
120/240-volt
AC Single-Phase Main
Lug Load Centers
|
|
2
|
70
|
Yes
|
INCL.
|
# 4
|
PK4GTA
|
9.38
x 4.88
x 4
|
5.0
|
QO24L70RB
|
053-02141
|
|
2
|
70
|
No
|
INCL.
|
# 4
|
PK4GTA
|
9.30
x 4.81
x 3.19
|
3.8
|
QO24L70S
|
053-02144
|
|
6
|
100
|
Yes
|
INCL.
|
# 1
|
PK7GTA
|
12.62
x 8.88
x 4.27
|
9.7
|
QO612L100RB
|
053-02147
|
|
6
|
100
|
No
|
INCL.
|
# 1
|
PK7GTA
|
12.57
x 8.88
x 3.8
|
8.3
|
QO612L100DS
|
053-02153
|
|
12
|
125
|
Yes
|
INCL.
|
# 2/0
|
INCL.
|
19
x 14.25
x 4.5
|
23
|
QO112L125GRB
|
053-02163
|
|
12
|
125
|
No
|
Add
|
# 2/0
|
INCL.
|
18
x 14.25
x 3.75
|
15
|
QO112L125G
|
053-02162
|
|
12
|
200
|
Yes
|
INCL.
|
250 kcmil
|
INCL.
|
26.25
x 14.25
x 4.5
|
27
|
QO112L200GRB
|
053-02165
|
|
12
|
200
|
No
|
Add
|
250 kcmil
|
PK15GTA
|
29.86
x14.25
x 3.75
|
18
|
QO112L200G
|
053-02164
|
|
Uses QO plug in breakers
|
|
120/208-volt AC Three-Phase Main Lug Load
Centers
|
|
12
|
125
|
Yes
|
INCL.
|
# 2/0
|
INCL.
|
19.00
x 14.25
x 4.52
|
22
|
QO312L125GRB
|
053-02181
|
|
12
|
125
|
No
|
Add
|
# 2/0
|
INCL.
|
19.00
x 14.25
x 3.75
|
11
|
QO312L125G
|
053-02183
|
|
18
|
200
|
Yes
|
INCL.
|
250 kcmil
|
INCL.
|
30.00
x 14.25
x 4.52
|
31
|
QO318L200GRB
|
053-02185
|
|
18
|
200
|
No
|
Add
|
250 kcmil
|
INCL.
|
30.00
x 14.25
x 3.75
|
17
|
QO318L200G
|
053-02187
|
|
Uses QO plug in breakers
|
