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Square-D QO load centers
Cat. No. SD-QOLC

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 X 14.25 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



Model:





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