Lucky wrote:
The DC cable with the fuse holder is 4Ft long. The extention Adaptaplug
cable is 6ft long. I bought both since I figured I'd keep the Astron PSU as
far from the radios as possible. So that's like 10 ft long together.

I don't think there's any need to keep the PSU as far from the radios as
possible. The SL-11A is not a switching supply, so it's not likely to
generate noise. (I've not used a SL-11A but I do have a RS-20A which is
perfectly quiet.)

Problem is, I tried looking up the current rating capacity of this
adaptaplug cable. I can't find any specs on it's properties on RS's site
like it shows for the 4ft DC cable. The part # is 273-1740 for the 6 ft
adaptaplug cable I want to use for the entire length.

Do you think this cable has the needed current rating for my use? This
cable's wires are much thinner then the other cables 22 AWG size. I can't
even find the adaptaplugs cable AWG.

Probably. 1.1 amps really isn't much current; it doesn't take a very
big wire to carry it safely.
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com