It's a blue sea systems brand, has two ~1/4" or so lugs on it for your power to run through. I used to have pictures of all that stuff, however I'm not sure where they ran off to. Bought it off the net for much cheaper than a place like West Marine would have it for. Amazon is $36 for an 80amp

http://www.amazon.com/Thermal-Circuit-Br...3086&sr=1-1



I'm very happy with how it seems to be doing, just something I never think about really.