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Solar Panel Wiring

Solar Panel Wiring

Proper connection of your solar panels to each other within your solar array and to the other balance of system components is crucial to the overall performance of your solar power system. Without proper wiring, power from your solar array may be unnecessarily lost before it travels to your battery bank or inverter.

The solar panel interconnects and panel output cables listed below make it very easy to make clean, code-compliant and water-tight connections. Please call our knowledgeable team of solar experts at 877-878-4060 if you have any questions!

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Subcategories
Product Name Gauge Length  Price
  Staubli 15' MC4 Connector Extension #10 AWG        Staubli 15' MC4 Connector Extension #10 AWG   Staubli MC4-15FT PVCMC4-MF-15FT Staubli 15' MC4 Connector Extension #10 AWG  10 AWG  180 in $26.68
  T4 15' Connector Extension Cable #10 AWG     T4 15' Connector Extension Cable #10 AWG   T4 T4-15FT PVCT4-MF-15FT T4 15' Connector Extension Cable #10 AWG  10 AWG  180 in $26.68
  Staubli 8' MC3 Connector Extension #10 AWG     Staubli 8' MC3 Connector Extension #10 AWG   Staubli MC3-8FT PVCMC-MF-8FT Staubli 8' MC3 Connector Extension #10 AWG  10 AWG  96 in $19.72
  Staubli 8' MC4 Connector Extension #10 AWG 600V     Staubli 8' MC4 Connector Extension #10 AWG 600V   Staubli MC4-8FT PVCMC4-MF-8FT Staubli 8' MC4 Connector Extension #10 AWG 600V  10 AWG  96 in $20.88
  Staubli 6' MC3 Connector Extension #10 AWG     Staubli 6' MC3 Connector Extension #10 AWG   Staubli MC3-6FT PVCMC-MF-6FT Staubli 6' MC3 Connector Extension #10 AWG  10 AWG  72 in $18.56
  Staubli 6' MC4 Connector Extension #10 AWG     Staubli 6' MC4 Connector Extension #10 AWG   Staubli MC4-6FT PVCMC4-MF-6FT Staubli 6' MC4 Connector Extension #10 AWG  10 AWG  72 in $18.56
  Staubli 3' MC4 Connector Extension #10 AWG     Staubli 3' MC4 Connector Extension #10 AWG   Staubli MC4-MF-3FT PVCMC4-MF-3FT Staubli 3' MC4 Connector Extension #10 AWG  10 AWG  36 in $15.86
  Amphenol Helios H4 Connector Female     Amphenol Helios H4 Connector Female   H4 Connector Female PVCH4CONNFEMALE Amphenol Helios H4 Connector Female     $3.42
  Amphenol Helios H4 Connector Male     Amphenol Helios H4 Connector Male   H4 Connector Male PVCH4CONNMALE Amphenol Helios H4 Connector Male     $3.42
  Disconnect Key for Staubli MC4 Connectors     Disconnect Key for Staubli MC4 Connectors   Staubli PV-MS GENMC4KEY Disconnect Key for Staubli MC4 Connectors     $9.95
  Disconnect Key for Staubli MC4-EVO2 Connectors     Disconnect Key for Staubli MC4-EVO2 Connectors   Staubli MC4-EVO2 GENMC4KEYEVO Disconnect Key for Staubli MC4-EVO2 Connectors     $9.95
  H4 to MC4 Array Adapter Set (MF Pair)     H4 to MC4 Array Adapter Set (MF Pair)   H4 to MC4 Adapter Set GENH4MC4ADAPTR H4 to MC4 Array Adapter Set (MF Pair)  10 AWG   $15.45
  Staubli MC Solarline 1 Neg to Solarline 2 Plus     Staubli MC Solarline 1 Neg to Solarline 2 Plus   Staubli 052-09098 GENMC4PLUS/MC3- Staubli MC Solarline 1 Neg to Solarline 2 Plus     $6.00
  Staubli MC2/MC4 Branch Coupler 1 Female to 2 Male Ends     Staubli MC2/MC4 Branch Coupler 1 Female to 2 Male Ends   Staubli MC2/MC4 BRANCH COUPLER ALR-MC2-F-2M Staubli MC2/MC4 Branch Coupler 1 Female to 2 Male Ends     $9.19
  Staubli MC2/MC4 Branch Coupler 1 Male to 2 Female Ends     Staubli MC2/MC4 Branch Coupler 1 Male to 2 Female Ends   Staubli MC2/MC4 BRANCH COUPLER ALR-MC2-M-2F Staubli MC2/MC4 Branch Coupler 1 Male to 2 Female Ends     $9.19
  Staubli MC4 (Solarline 2) Locking Sleeve     Staubli MC4 (Solarline 2) Locking Sleeve   Staubli MC4 Locking Sleeve GENMC4-SLEEVE Staubli MC4 (Solarline 2) Locking Sleeve     $2.77
  Staubli MC4 Female Cable Coupler AWG10-12 PV Wire - 10PACK     Staubli MC4 Female Cable Coupler AWG10-12 PV Wire - 10PACK   Staubli MC4 Female Coupler PV PVCMC4FEMPV10PK Staubli MC4 Female Cable Coupler AWG10-12 PV Wire - 10PACK     $28.50
  Staubli MC4 Female Cable Coupler AWG10-12 USE-2 Wire - 10PACK     Staubli MC4 Female Cable Coupler AWG10-12 USE-2 Wire - 10PACK   Staubli MC4 Female Coupler USE2 PVCMC4FEMUS10PK Staubli MC4 Female Cable Coupler AWG10-12 USE-2 Wire - 10PACK     $28.50
  Staubli MC4 Male Cable Coupler AWG10-12 PV Wire - 10PACK     Staubli MC4 Male Cable Coupler AWG10-12 PV Wire - 10PACK   Staubli MC4 Male Coupler PV PVCMC4MALPV10PK Staubli MC4 Male Cable Coupler AWG10-12 PV Wire - 10PACK     $29.95
  Staubli MC4 Male Cable Coupler AWG10-12 USE-2 Wire - 10PACK     Staubli MC4 Male Cable Coupler AWG10-12 USE-2 Wire - 10PACK   Staubli MC4 Male Coupler USE2 PVCMC4MALUS10PK Staubli MC4 Male Cable Coupler AWG10-12 USE-2 Wire - 10PACK     $29.95
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.

If you are going to be wiring your modules in parallel, you have two options. The first is to 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.

The second option available to you is to 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.

Wiring Your Solar Power System

Do you still have questions? Please feel free to watch our video on wiring your solar power system or give one of our solar experts a call at 877-878-4060.

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