Connecting the
Power of the Sun
Solar Combiner Boxes for
Solar Photovoltaic Installations
Solar combiner boxes for
solar photovoltaic installations
Solar energy
is heating up
Interest in renewable energy sources has never been
greater, and the fastest growing of these new green
technologies is the use of photovoltaic (PV) panels
(modules) to generate power from the sun. PV modules
directly convert the sun’s light into electricity, providing
power during daylight hours. PV systems are being
installed on virtually every type of building, resulting in
a growing need for products to meet the requirements
of these systems.
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EATON CORPORATION 
Eaton’s solar combiner boxes
Solar photovoltaic (PV) installations convert sunlight
into electricity, providing clean, renewable energy.
Solar PV systems contain many separate DC source
circuits that must be combined into a single circuit
prior to inversion into clean, usable AC power for
the electric grid.
Eaton is proud to offer a line of solar combiner boxes that
provides customers with a high-quality product good enough
to bear the Eaton brand.
Solar combiner boxes aggregate the many DC source circuits
present in a solar PV system, and provide the overcurrent
protection requirements of the National Electrical Code.T
Containing input fuse holders for source protection, the load
sides of the fuse holders are connected together on a common
bus that contains the output lugs, allowing multiple circuits
to be combined into one outgoing circuit.
Eaton’s combiner boxes are available in two styles—source
combiners and array combiners. Source combiners are located
closer to the source, or the solar panels. They have smaller input
fuse holders and lower output currents.
Array combiners (sometimes referred to as re-combiners) are
found in larger installations. They aggregate the outputs from
several source combiners into a single circuit. Array combiners
feature larger input fuse holders and higher output currents.
With the full selection of inputs and fuse holder ratings, Eaton’s
solar combiner boxes allow for the complete management
of solar DC circuits. Until now, these products have been
available only from companies specializing in the solar market.
With Eaton’s recently announced DC photovoltaic switch,
this offering gives Eaton customers a one-stop shop for solar
PV balance-of-system electrical equipment.
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EATON CORPORATION 
Technical Details
Source
Combiners
Array
Combiners
NEMA 3R
Catalog
Number
NEMA 4
Catalog
Number
Number
of
Circuits
Maximum
Dimensions
Fuse Size A (H x W x D)
Weight
Incoming
Wire Range
Output
Conductors
Maximum
Continuous
DC Current
SC8R
SC8P
8
30
16 x 12 x 6
30
#16–#4
1–#6 to 350 kcmil
310
SC10R
SC10P
10
30
16 x 12 x 6
30
#16–#4
1–#6 to 350 kcmil
310
SC12R
SC12P
12
30
16 x 12 x 6
30
#16–#4
1–#6 to 350 kcmil
310
SC16R
SC16P
16
30
16 x 16 x 6
36
#16–#4
2–#6 to 350 kcmil
400
SC24R
SC24P
24
20 B
20 x 20 x 6
45
#16–#4
2–#6 to 350 kcmil
400 B
AC6100R
AC6100P
6
100
36 x 36 x 8
156
#6–2/0
2–#4 to 500 kcmil
720
AC12100R
AC12100P
12
100
48 x 36 x 8
227
#6–2/0
4–#4 to 500 kcmil
1520
AC6200R
AC6200P
6
200
42 x 36 x 8
206
#6–4/0
4–#4 to 500 kcmil
1520
AC12200R
AC12200P
12
200 B
48 x 36 x 8
278
#6–4/0
4–#4 to 500 kcmil
1520 2
A Fuses not included.
B Total installed fuse capacity shall not exceed maximum continuous DC current rating.
Source combiner features
C
 ETL listed to ULT 1741 standard
7
B Touch-safe midget class fuse holders (non load-break)

D
are rated for 600 Vdc continuous duty (fuses not included)
C Poured-in-place gaskets for superior moisture resistance
D
Suitable for either positive or negative grounded arrays
8
6
E
E Available in 8, 10, 12, 16 and 24 circuit configurations
6 NEMAT 3R or NEMA 4 powder-coated steel enclosures
7
B
White back pan with high-contrast labeling for easier,
faster installation
8 Padlockable latch

Array combiner features
E
 ETL listed to UL 1741 standard
B
B Rated for 600 Vdc continuous duty
C Poured-in-place gaskets for superior moisture resistance
D Suitable for either positive or negative grounded arrays
F
E Available in 6 and 12 circuit configurations
D
F 100 or 200A input fuse holders (Class R)
NNote: Fuses not included.
C
EATON CORPORATION 
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C
B
C
A
A
B
Source Combiner Dimensions
Array Combiner Dimensions
Source Combiner Dimensions
Catalog Number
A
B
C
Number of Circuits
Output Lug Capacity
SC8R/P
16.00
12.00
6.00
8
#6 AWG—350 kcmil Cu/Al
SC10R/P
16.00
12.00
6.00
10
#6 AWG—350 kcmil Cu/Al
SC12R/P
16.00
12.00
6.00
12
#6 AWG—350 kcmil Cu/Al
SC16R/P
16.00
16.00
6.00
16
#6 AWG—350 kcmil Cu/Al
SC24R/P
20.00
20.00
6.00
24
#6 AWG—350 kcmil Cu/Al
Array Combiner Dimensions
Catalog Number
A
B
C
Number of Circuits
Output Lug Capacity
AC6100R/P
30.00
30.00
9.25
6
(2) #4 AWG—500 kcmil Cu/Al
AC12100R/P
42.00
36.00
9.25
12
(4) #4 AWG—500 kcmil Cu/Al
AC6200R/P
42.00
36.00
9.25
6
(4) #4 AWG—500 kcmil Cu/Al
AC12200R/P
60.00
36.00
9.25
12
(4) #4 AWG—500 kcmil Cu/Al
EATON CORPORATION 
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Eaton’s Electrical Sector is
a global leader in power
distribution, power quality,
control and automation, and
monitoring products. When
combined with Eaton’s full-scale
engineering services, these
products provide customerdriven PowerChainE solutions
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efficiency. For more information,
visit www.eaton.com/electrical.
Eaton Corporation
Electrical Sector
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Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
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© 2010 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. PA00801008E / Z9726
June 2010
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