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On Will Prowse’s YouTube post about the installation of two EG4 6500 all in one system I see that the PV array wires enter the disconnect switch as twisted pairs from each array and exit the disconnect as much more parallel wires. Somewhere long ago I think I remember reading that twisting DC...

When using the solar array disconnect switch available from Signature Solar the wires to and from the switch enclosure enter thru unprovided gland fittings. I see on Amazon that the internal seals provided with their gland fittings are available for single wires or for three or four wires. I...