Custom Marine Products provides most electrical components needed to install a complete solar system including PWM controllers and MPPT controllers listed on other pages.
Note: we carry wire with MC4 connectors already installed in 50 foot and 60 foot sections.
Note: we carry wire with MC4 connectors already installed in 50 foot and 60 foot sections.
Complete Solar System
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#10 (or #8) AWG Marine Grade PV Wire
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MC4 Solar Line Connectors
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MC4 T-branch Connectors
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#10 (#8 too, call us) AWG Marine Grade PV Wire
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The proper wire from the solar panels to the controller and the controller to the batteries is important to minimize voltage drop and thus obtain maximum performance from your solar panel. Our wire is made for the marine environment and will provide optimal power throughput with minimal voltage drop. We install MC4 connectors on the wire so no special tools will be required for installation.
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Marine Grade PV Wire Specifications:
Conductor: Stranded Tined Copper (84 Strands) Insulation: Halogen free cross linked polyolefin Sheath: Halogen free cross linked polyolefin Nominal Cross-Section: 6mm² Rated Temperature: -40~﹢90℃ Rated Voltage: DC:1.8kV --AC:0.6/1kV Finished cable O.D. 6.37 ±0.1mm Conductor resistance（20℃):≤3.39Ω /km Rated Current: 25~32A Weathering Resistance: UV Burning Behavior: (IEC60332-1) Wire Diameter: #10 .25 in. with sheath (6mm) #8 .4 in. with sheath (10mm) Special Order Per Foot Available |
50 Foot Coil #10 AWG Marine Grade PV Solar Wire w- MC4 PreinstalledThis 50 foot coil has a male MC4 connector preinstalled on one end and a female MC4 connector on the other. Cut the coil in half for two 25 foot runs from the solar array to the controller. Extra wire can be used to run from the controller to the battery bank.
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60 Foot Coil #10 AWG Marine Grade PV Solar Wire w- MC4 PreinstalledThis 60 foot coil has a male MC4 connector preinstalled on one end and a female MC4 connector on the other. Cut the coil in half for two 30 foot runs from the solar array to the controller. Extra wire can be used to run from the controller to the battery bank.
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MC4 Solar Line Connectors
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Our solar panels are factory wired with one meter long pigtails and waterproof MC4 solar connectors. Thus, you will need a pair of connectors to connect the wire to the solar panel. Upon request, we will install the connectors to the wire ordered so no tools will be required.
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Rated voltage: DC 1000V
Junction temperature current:16A Contact resistance:＜0.3mΩ Safety class: class Ⅱ Waterproof grade: IP 65 Temperature range :-40℃～+85℃ Cable standard: 2.5/4/6mm² Flame retardant grade: UL94-V0 Insulation material: PPO Composite contact material: Copper, Tin Plated |
MC4 Compatible Line ConnectorsOne male and one female connector for standard solar wire. Can be pre-installed on the wire ordered upon request.
Price per pair |
MC4 T-branch Connectors
MC4 T-branch connectors are used to wire multiple panels in parallel. We offer 2-1, 3-1 and 4-1 T-branch connectors. With these waterproof connectors, it is easy to plug the panels together with no special wiring, junction boxes or tools.
MC4 Compatible 2-1 T-branch Connector SetUsed when connecting two solar panels to a controller
Rated voltage: DC 1000V Waterproof grade: IP 65 Cable standard: 2.5/4/6mm² Temperature range:-40℃～+85℃ Flame retardant grade: UL94-V0 Composite contact material: Copper, Tin Plated Price per pair |
MC4 Compatible 3-1 T-branch Connector SetUsed when connecting three solar panels to a controller
Rated voltage: DC 1000V Waterproof grade: IP 65 Cable standard: 2.5/4/6mm² Temperature range:-40℃～+85℃ Flame retardant grade: UL94-V0 Composite contact material: Copper, Tin Plated Price per pair |
MC4 Compatible 4-1 T-branch Connector SetUsed when connecting three solar panels to a controller
Rated voltage: DC 1000V Waterproof grade: IP 65 Cable standard: 2.5/4/6mm² Temperature range:-40℃～+85℃ Flame retardant grade: UL94-V0 Composite contact material: Copper, Tin Plated Price per pair |