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CONNECT Energy
PCB10
TEN CIRCUIT PV COMBINER BOX
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The Connect Energy's PV Array
Combiner Box, PCB10, is designed to combine the output of multiple
solar electric (PV) source circuits. We build this product as part of our
continuing commitment to make the installation of solar electric systems
safe, simple and compliant with the US National Electrical Code (NEC). The
PCB10 has 10 fused circuits in a NEMA 3R lockable enclosure. Each circuit
can accept up to 15 Amps of PV input current up to a total maximum of 64
Amps. The PCB10 may be used with 12, 24 and 48 VDC PV systems and can handle
a maximum 125 VDC input.
Reduced Wiring Costs
The combiner box is designed for installation near the PV array with each
series string of solar modules connected to one of the PCB10 fused circuits.
Up to 10 solar array inputs may be combined at the PCB10, yet only a single
pair of wires is required between the Combiner Box and the PV controller
location. This can result in a considerable savings in the cost of wire
since fewer wires will have to be installed. Each input circuit will accept
up to #10 AWG wire. The PCB10 has two sets of output terminals (AWG #1/0
wire max) so that parallel pairs of wires may be run for installations with
large arrays or where long distances are an issue.
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| The PCB10 provides a convenient way to isolate and test
the PV array circuits without interrupting the power production of other
circuits in the array. This improves safety and reduces the time required to
troubleshoot any PV related circuitry problems. |
Surge Protection
The PCB10 includes Zinc Oxide Non Linear Resistors (ZNRs) which are
designed to help protect your system from electrical surges such as those
caused by nearby lightning strike. If a single pair of output terminals is
used, additional lightning protection may be
installed in the spare pair of terminals. (i.e. PLA100) |
SYSTEM NO LONGER AVAILABLE
Sizing Considerations
To insure a code compliant safety margin of 25%, a maximum of 64 Amps of PV
current (64 amps ISC) should be connected to a PCB10.
The PCB10 accepts a wide variety of fuses ranging in size from 5 to 15 Amps.
Connect Energy recommends Bussman type MDA or ABC fuses which are available in
5, 6, 8, 10 and 15 Amp sizes. They are NOT INCLUDED with the PCB10 so be sure to
order the correct quantity and size when you purchase your combiner box.
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