Interconnection at 208Y/120 transformer secondary.

[solarken]

I am getting ready to tie in two small commercial 3-phase PV systems at secondary of a 480 to 208Y120 transformer. The secondary lugs already have dual 250mcm on them, per the photo. I need to add the two 60A connections using lugs for 6AWG copper conductors. I was thinking of orienting the lugs so the conductors point up and with them back to back like the existing lugs are so the contact is flat under the bolt, but this would mean the conductors get closer to the transformer winding connections above, rather than staying down below. Any thoughts or suggestions from anyone?

 

[electrofelon]

I'm may not be the best person to ask cuz most of you know I am super libertarian on adding lugs to things, but I don't see an issue with stacking another lug on there, even if it has to point up. Another option might be something like these:

Buy Triple Wire Lugs (3 wires per lug, at LugsDirect.com

Buy triple wire triple barrel terminal lugs. Allow 800 kcmil to 14 AWG copper or aluminum wire, and are CSA certified and UL listed. Aluminum with tin plating. Made in the USA from domestic and imported parts

lugsdirect.com