Connect Energy PCB10 PV Array Combiner 10 Circuit

TEN CIRCUIT PV COMBINER BOX

Designed for Safe and Code Compliant PV Installations

The PV Array Combiner Box, PCB10, is designed to combine the output of multiple solar electric (PV) source circuits. 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.

Simplifies Array Maintenance

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, such as the LA-302DC may be installed in the spare pair of terminals.

Wide Variety of Fuse Sizes:

The PCB10 accepts a wide variety of fuses ranging in size from 5 to 15 Amps. We recommend 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.

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.