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Multicontact (MC) Solar Panel Interconnect Cables & Adaptors

MC Cables for Solar Panel Interconnections

MC cables are used on nearly all new panels in the 100 watt+ range except for those specifically made for off-grid/RV/Marine applications, which still use the standard junction box, such as the Kyocera KC130.

The latest NEC code requires the MC4 type (Solarline 2) latching connectors, as shown in the picture. Nearly all new solar panels use the MC4 connectors, there are only a few panels still being sold that use the MC3 type connectors - most of those were manufactured prior to 2008, but there are still some in the supply pipeline, and quite a few older systems that used them.

There are also a few of the newer panels that use the Tyco Solarlok type connectors and cables. Special order only, 3-5 days.

All MC cables are made with #10 AWG stranded UL/NEC approved RHW-2/RHH (USE-2) sunlight resistant wire.

If you are using a solar panel with MC type connectors on them for RV, marine, or other application where you need to tie into a charge controller, junction box, or array combiner, just buy ONE extender cable that is twice the total length needed and cut it in half. ** Do NOT cut the connector off the end of the solar panel cable, as that will void the manufacturers warranty.

Polarity: We cannot find any "official" notes on polarity, but all the modules we have seen use the tapered looking end as the Positive (+) and the other as the Negative on panels that come pre-wired with MC connectors.


 
8 Foot MC3 Extension Cable Male/Female
8 Foot SL1 MC3 solar panel wiring extender cable.
Free Shipping in Lower 48 states
Adaptor Cable, Male Solarline 1 to Female Solarline 2
MC3 Male to MC4 Female Adaptor Cable, Male SL1 to Female SL2
Free Shipping in Lower 48 states
Adaptor Cable, Male MC4 to Female MC3
Solar Panel Adaptor Cable, Male MC4 SL2 to Female MC3 SL1
Free Shipping in Lower 48 states
6 Foot MC4 Extender Cable Male/Female
6 Foot MC4 Solarline 2, Extender Cable Male/Female
Free Shipping in Lower 48 states
10 Foot MC4 Extender Cable Male/Female
10 foot M/F MC4 solar panel interconnect cable
Free Shipping in Lower 48 states
30 Foot MC4 Solarline 2, Extender Cable Male/Female
30 foot MC4 extender cable M/F
Free Shipping in Lower 48 states
50 Foot MC4 Solarline 2, Extender Cable Male/Female
50 Foot MC4 (SolarLine 2) Extender Cable
Free Shipping in Lower 48 states
100 Foot MC4 Solarline 2 Extender Cable Male/Female
100 foot MC4 solar panel wiring extender cable
Free Shipping in Lower 48 states
30 inch MC Solarline 1, pigtail set for J-box
MC3 cable to Terminal lug adaptors
Free Shipping in Lower 48 states
Multibranch MC3 Connectors
MC3 (Non-latching) Paralleling Connectors
Free Shipping in Lower 48 states
 
Multibranch MC4 Connectors, Latching
Multibranch MC4 Latching Connectors for Paralleling Panels
Free Shipping in Lower 48 states
 
Using MC cables in solar electric systems
MC Cable Clips - Bag of 25
Cable Clips
Free Shipping in Lower 48 states
Disconnect Tool for MC4 Connectors (set of 2)
Recommended to unlatch MC4 connectors
Free Shipping in Lower 48 states
 
 

 

 

 

 

 

 

 

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