this thing is pretty warm to the touch.  i blew one so far.  any ideas on what could be causing this?

I started melting (blowing) them because of dirt and crosion on the connectors on the back of fuse holder. Try disconnecting your battery, unbolting the under hood fuse holder, flipping it over and seeing if it is dirt/corosion coated. Mine ended up getting so hot it melted the holder and I had to order another one from Hawk.

Zig

If that doesn't work. Check and clean all main grounds, neg. bat. cable and post.