ALL converters have fuses.. Sometimes they are not located on the converter however.
Example. Magnetek Converters which are intergrated into the power distribution center the fuse is on the right of the fuse panel. One of the two right hand fuses (Actually both of them for different parts)
on Parallex intergrated units.. Same (A 2008 Won't have a Magnetek but may have a Parallex)
on "Stand alone" the fuse may be ON it, or inside it (you may need to remove a cover).
And if all else fails there is Murphy's Law for Electronics Engineers.... (one of them modified for this thread)
A 50 dollar Diode Bridge will blow to protect a 50 cent fuse.
Yup it happens.. That is the field I have certification in after all :) Even if I never formally worked in it.