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Solar Panel Wiring

Solar Panel Wiring


Proper connection of your solar panels to each other and to other components is crucial to the overall performance of your solar power system. Without proper wiring, power from your solar array may be lost right at the source before it ever gets to your battery bank or inverter. See our Video on Wiring your Home Solar Power System.

The solar panel interconnects and panel output cables listed below make it very easy to make clean, code-compliant, water-tight connections.

Also check out our article "TBD". And please call our knowledgeable sales team if you have any questions!

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Subcategories
Product Name  Guage Length Price
  100' H4 Connector Cable #10 AWG     100' H4 Connector Cable #10 AWG    10 AWG  1200 in $75.36
  100' SMK Connector Cable #10 AWG     100' SMK Connector Cable #10 AWG    10 AWG  1200 in $75.36
  15' H4 Connector Cable #10 AWG     15' H4 Connector Cable #10 AWG    10 AWG  180 in $23.00
  15' SMK Connector Cable #10 AWG     15' SMK Connector Cable #10 AWG    10 AWG  180 in $25.01
  30' H4 Connector Cable #10 AWG     30' H4 Connector Cable #10 AWG    10 AWG  360 in $33.15
  30' SMK Connector Cable #10 AWG     30' SMK Connector Cable #10 AWG    10 AWG  360 in $35.16
  50' H4 Connector Cable #10 AWG     50' H4 Connector Cable #10 AWG    10 AWG  600 in $48.23
  50' SMK Connector Cable #10 AWG     50' SMK Connector Cable #10 AWG    10 AWG  600 in $50.24
  Amphenol Helios H4 Connector Female     Amphenol Helios H4 Connector Female       $3.32
  Amphenol Helios H4 Connector Male     Amphenol Helios H4 Connector Male       $3.32
  H4 Disconnect Key for H4 Connector Cable     H4 Disconnect Key for H4 Connector Cable       $11.06
  H4 to MC4 Array Adapter Set (MF Pair)     H4 to MC4 Array Adapter Set (MF Pair)    10 AWG   $17.58
  Kyocera 30 Inch Mc4 Pigtail Set for Kc J-Box     Kyocera 30 Inch Mc4 Pigtail Set for Kc J-Box      30 in $35.34
  MC2/MC4 Branch Coupler 1 Female to 2 Male Ends     MC2/MC4 Branch Coupler 1 Female to 2 Male Ends       $8.12
  MC2/MC4 Branch Coupler 1 Male to 2 Female Ends     MC2/MC4 Branch Coupler 1 Male to 2 Female Ends       $8.13
  Multi-Contact 100' MC4 Connector Extension #10 AWG        Multi-Contact 100' MC4 Connector Extension #10 AWG    10 AWG  1200 in $75.36
  Multi-Contact 120' MC3 Connector Extension #10 AWG        Multi-Contact 120' MC3 Connector Extension #10 AWG    10 AWG  1440 in $90.25
  Multi-Contact 120' MC4 Connector Extension #10 AWG        Multi-Contact 120' MC4 Connector Extension #10 AWG    10 AWG  1440 in $85.41
  Multi-Contact 15' MC3 Connector Extension #10 AWG     Multi-Contact 15' MC3 Connector Extension #10 AWG    10 AWG  180 in $23.18
  Multi-Contact 15' MC4 Connector Extension #10 AWG        Multi-Contact 15' MC4 Connector Extension #10 AWG    10 AWG  180 in $22.95
More Info on Solar Panel Wiring
Wiring your solar panels to a combiner box. Now that many solar panels come with Multi-contact Solarline connectors, wiring modules in series is as simple as connecting the positive lead of one module to the negative lead of the next module and so on. If you plan on wiring the modules in parallel, you may be confused about what to do with the MC connector leads on the modules since you can't connect positive to positive using only the connectors. Here are two options:
  • Use MC connector cables, one per module. Measure the distance from the module to the combiner box. If it is 3 feet, you'll need a connector that is double that, like the Multi-Contact 6 FT MC3 Connector Extension #10 AWG. Plug the male and female ends of the MC connector in to the corresponding solar module leads. Cut the MC connector cable in half and run the bare ends of the connector to your combiner box. Repeat this process for each solar module. Do not cut the MC connector leads on your solar module! This may void the warranty.
  • Use branch cable couplers, one each MC Branch Cable Coupler F-2M and MC Branch Cable Coupler M-2F for each pair of modules being paralleled.
  • Still have questions? Please give us a call.

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