Multicontact Solar Panel Interconnect Cables & Adaptors
All MC Cables are #10 AWG (6mm)

The new NEC code requires the "SolarLine2" (MC4) type latching connectors, as shown in the picture. Over the next few months there will be a transition period where some panels have the SL1/MC3 type connectors and some have the new SL2/MC4 latching type.

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 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.

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.