Quad Enclosure and Busbars

[lesleb]

I recently purchased a Midnite Solar Quad Enclosure and two(2) busbars to install in it...a red and black.  BUT, it only has holes to install one (1) busbar.  I believe I only need to use the black (negative) busbar because the breakers have 1/4 inch terminal posts.  I would route the incoming positive from the combiner directly to the breaker input and to the Classic 150 directly from the other 1/4 inch terminal post on the same breaker.  The other breaker supplying the batteries, via the Classic 150, would be the same.

Does this make sense?

Thanks