al Code (NEC) states that a disconnect is required for every piece of equipment
(charge controllers, inverters, etc.) to isolate them from all sources of power (solar modules, batteries and generators). This might
sound complicated, but it is really pretty easy. On the following pages you will find several disconnect and overcurrent protection
options for your system. If you arent sure which disconnects you should use and where, just give your KSI dealer a call and he can
point you in the right direction.
Connect Energy PV Combiner Box
The NEC requires that each series string of solar modules in an array must be paralleled together in a fused combiner box.
Connect Energy offers their PCB10 combiner box to do just that. It will accept up to ten pairs (one + and one -) of #10 AWG
wire and combines them together into a pair of dual #1/0 AWG lugs. The PCB10 is UL listed, housed inside an 8" x 10" x 4"
NEMA-3R enclosure and includes a ground bar and MOV surge suppressors. Fuses must be ordered separately and vary in
size depending on the amperage of the solar modules in your array. PCB10 shipping weight is 7 lbs. Use OBFH and OBFs
for PCBHV and PCBHV4D.
PCB10 Combiner Box
Product Name and
Description
Part
Number
Price
PCB10 Combiner box
53072
$229.00
ABC-6 (pack of 10-6A fuses)
36727
$12.00
ABC-8 (pack of 10-8A fuses)
36728
$12.00
ABC-10 (pack of 10-10A fuses)
36729
$12.00
ABC-15 (pack of 10-15A fuses)
36730
$12.00
PCBHV - 10 Circuit
33912
$405.00
PCBHV4D
33911
$349.00
PSPV
OutBack offers a PV array combiner which can be used with a wide variety of PV system designs and module configurations. It
can be configured with DC breakers for low voltage systems (under 125 VDC) or touch safe type fuse holders for high voltage
systems (up to 600 VDC). PSPV is designed to provide NEC code compliant overcurrent protection and interconnection of
multiple PV panels or sub-arrays into one or more PV arrays for connection to charge controllers or inverter systems. The PSPV is
easily field configured to match your PV system design and ampacity requirements.
The PSPV Power system PV Combiner provides series over-current
protection of PV module circuits allowing NEC compliant installation.
Includes space for up to twelve 125 VDC rated breakers or eight 600 VDC
rated fuse holders. Includes two positive output bus bars with two #1/0
terminals for single or dual output circuits. The type 3R outdoor rainproof
enclosure can be mounted vertically, or inclined to 14 degrees (3 in 12
pitch). Enclosure only without breakers or fuse holders.
OutBack Power System PV Combiner (PSPV)
PSPV Combiner
Product Name
and Description
Part
Number
Price
Shipping
Weight (lbs.)
PSPV
55252
$139.00
5.0 11th Edition Solar Electric Products Catalog April 2004
64
Safet y and Disconnect Equipment
PV Array Breakers
DIN rail snap-in mount with #2 AWG setscrew type compression terminals. UL listed for up to 125 VDC. Maximum of twelve
breakers. Fits in the PSPV only.
Product Name
and Description
Part
Number
Price
OBPV-6
55240
$12.00
OBPV-9
55241
$12.00
OBPV-10
55242
$12.00
OBPV-15
55243
$12.00
OBPV-30
55244
$12.00
High Voltage PV Array Fuseholder
DIN rail snap-in mount with #8 AWG setscrew type compression terminals. Touch-safe design. Not rated for load make or
load break usage. UL listed for up to 600 VDC. Maximum of seven fuseholders in one PSPV enclosure.
Product Name
and Description
Part
Number
Price
OBFH
55230
$18.00
KLM OBF-1
3899901
$18.00
KLM OBF-5
3899905
$18.00
KLM OBF-8
3899908
$18.00
KLM OBF-10
3899913
$18.00
KLM OBF-15
3899915
$18.00
KLM OBF-25
3899925
$18.00
OutBack Power System PV Segmenting Breaker
PSSB
OutBack PV array disconnect is designed specifically to work with the SMA Sunny Boy line-tie inverter systems. It can also
be used with other high voltage utility interactive PV inverters or other applications such as large inverter power systems
or water pumping systems. It can also be used as a standard 600 VDC disconnect for a single high voltage PV array.
The PSSB is designed to provide NEC code compliant overcurrent protection and disconnect means of up to six separate
low voltage PV sub-arrays into a single high voltage PV array for connection to a high voltage PV inverter. An optional AC
breaker disconnect can also be installed inside the same enclosure to provide a local means of disconnect at the location
of the inverter.
Additional space for an OBAC-15D (PN 55322) AC breaker
disconnect - 2 pole 15 amp 208 and 240 VDC load break rated - 10K
AIC or for an additional six pole segmenting breaker (OBSB-15)
allowing connection of up to twelve low voltage PV sub-arrays.
Product Name
and Description
Part
Number
Price
Shipping
Weight (lbs.)
PSSB
55289
$249.00
7.0
PSSB
OBPV
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OutBack DC Ground Fault Protection System
The OutBack Power systems GFP/2 is required for PV arrays mounted on
dwelling roofs. A GFP/2 protects wiring and system components for one or
two PV arrays: Dual 60 amp PV circuits 125 VDC max Voc. Requires three
small breaker spaces. The GFP/2 has 1/4 stud terminals. The OBDC-GFP/2
system includes the GFP unit, a ground bus bar, neutral and ground
connection wiring and mounting hardware. The PSR includes mounting for
only one OBDC-GFP/2 along with two PV disconnects and one large battery
breaker. For use in OutBack PSR and PSDCs.
Product Name
and Description
Part
Number
Price
Shipping
Weight (lbs.)
OBDC-GFP/2
55270
$129.00
2.0
PV Ground Fault Protection
PVGFP
The NEC requires that you install a ground fault protection (GFP) device in
your system if your solar array is mounted on the roof of a dwelling. To
accomplish this, Xantrex has designed four different "PVGFP" units to handle
100-400 amps at 125 VDC max. Voc. This is actually a fire protection device
designed to interrupt a fault current in excess of 1 amp by disconnecting the
PV array from the rest of the system. Units from Xantrex are supplied without
an enclosure, but it can be housed in a box with internal dimensions not less
than 10.5W x 12H x 3.75D.
Product Name and
Description
Part
Number
Price
Shipping
Weight (lbs.)
PVGFP-1
54011
$275.00
2.0
PVGFP-2
54013
$325.00
3.0
PVGFP-3
54014
$375.00
4.0
PVGFP-4
54015
$425.00
5.0
OBDC
Segmenting Breaker
Segmenting breaker only - 6 pole 15 amp 100 VDC per pole / 600
VDC total. Two can be installed in a single PSSB enclosure allowing
connection of up to twelve low voltage PV sub-arrays.
Product Name
and Description
Part
Number
Price
Shipping
Weight (lbs.)
OBSB-15
55233
$110.00
2.0
PSSB Sunny Boy Mounting Plate
Mounting plate for one PSSB and a Sunny Boy Inverter, or without an
inverter, up to three PSSBs - 16 & 24 inch mounting holes. Grey
powder-coated aluminum. Includes mounting hardware.
Product Name
and Description
Part
Number
Price
Shipping
Weight (lbs.)
PSSB-MP
55232
$99.00
8.6
OBSB-15 Segmenting Breaker
PVGFP-1 11th Edition Solar Electric Products Catalog April 2004
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Safet y and Disconnect Equipment
General Electric 2 and 3-pole fused safety switches
are typically used for single and 3-phase AC circuits,
but can be used for 12-125 VDC circuits as well.
Class-R fuses are required with these switches, but
are not included. See the
Class-R fuse and block
section
.
Outdoor NEMA 3R Enclosure
General Electric Fused Safety Switches
Indoor NEMA 1 Enclosure
Class R Fuses and Fuse Blocks
Class R Fuses
Class-R fuses are current limiting fuses with a high
amp interrupting capacity (AIC) that can be used in
DC or AC circuits. These fuses can be used in the GE
safety switches or the single or double pole fuse
blocks.
Product Name
and Description
Part
Number
Price
FRN-R15 - 15A
36699
$4.00
FRN-R20 - 20A
36702
$4.00
FRN-R30 - 30A
36700
$4.00
FRN-R40 - 40A
36704
$8.00
FRN-R50 - 50A
36720
$8.00
FRN-R60 - 60A
36706
$8.00
FRN-R80 - 80A
36707
$18.00
FRN-R100 - 100A
36710
$20.00
Class R
Fuses
Class R Fuse Blocks
Use these fuse holders for
a low-cost means of
protecting small to
medium sized inverters or
other DC circuits. These
blocks should be mounted
inside an enclosure for
safety.
Product Name
and Description
Part
Number
Max. Wire
Size
Number
of poles
Price
FB-30-1
36961
2AWG
1
$7.00
FB-30-2
36962
2AWG
2
$15.00
FB-60-1
36963
2AWG
1
$12.00
FB-60-2
36964
2AWG
2
$29.00
FB-100-1
36966
1/0
1
$26.00
FB-100-2
36967
1/0
2
$36.00
Class R Fuse Blocks
Product Name and
Description
Part
Number
Price
Shipping
Weight (lbs.)
TG3221 - 2 pole 30A
36600
$60.00
6.0
TG4321 - 3 pole 30A
36641
$89.00
6.0
TG3222 - 2 pole 60A
36621
$99.00
11.0
TG4322 - 3 pole 60A
36643
$145.00
16.0
TG3223 - 2 pole 100A
36630
$195.00
17.0
Product Name and
Description
Part
Number
Price
Shipping
Weight (lbs.)
TG3221R - 2 pole 30A
36620
$91.00
6.0
TG4321R - 3 pole 30A
36642
$135.00
6.0
TG3222R - 2 pole 60A
36625
$159.00
11.0
TG4322R - 3 pole 60A
36644
$196.00
16.0
TG3223R - 2 pole 100A
36631
$219.00
17.0
Indoor Enclosure 11th Edition Solar Electric Products Catalog April 2004
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Class T Fuses
Product Name
and Description
Part
Number
Max. Wire
Size
Amperage
Price
PFB110T
36735
3/0
110A
$53.00
PFB175T
36745
3/0
175A
$69.00
PFB200T
36740
250MCM
200A
$62.00
PFB250T
36747
250MCM
250A
$79.00
PFB300T
36750
250MCM
300A
$79.00
PFB400T
36741
250MCM
400A
$79.00
Class T Fuse Blocks
Class T Fuses and Fuse Blocks
Class T Fuse Blocks
Class-T fuses are also current limiting like
the Class-R, but have an even higher AIC
and are available in amperages from 110
to 400 Amps.These fuse blocks are
typically used in between the b