Power in connection????

[NYTOM]

All my breakers are Klixon and the line terminals are clearly marked as such but on the one breaker I have that is not a Klixon there is no marking. It's one of the high amperage one's ACS sells for the alternator. Does it matter which terminal I use as the line in? No marking I can see and I can't find any spec sheet on it. Klixon's line terminal is always on top. At least one's I have.

 

[bird]

It should not matter, Normally the top is the line in on most electrical devices.

Bird

 

[NYTOM]

Thanks Bird. At first I thought I asked a dumb question cause you usually get a ton of answers here. I just figured since it is DC voltage and polarity is very important with DC, it might be an issue. The fact that Klixon marked line side got me wondering if I'd damage the breaker if wired backwards.
Thanks again Bird.