anl/fire

ok i was reading a closed post that using a large anl fuse will cause a fire is this true? i am currently rinning 4 amps in my car an epicenter and a line driver and three subs i have 2 batteries one in front and one in the back i have an inline anl in the front batt with a 250 anl fuse and one 250 amp fuse in the back where my dis block is is this ok or not?

3 memphis pr124d, 6.5 memphis comp front and rear, 3 memphis 250d's,1 memphis 75x4,1 memphis line driver, i memphis eqp4,1 epicenter,  2 kinetik batteries

power wire is 4guage

thanks!

Haemphyst, where did you get your current ratings from?  I've never seen a car audio specific chart.  According to: http://www.powerstream.com/Wire_Size.htm he should have 1/0 or bigger cable for a 250A fuse.  I honestly don't know if that chart applies to the wire you are using, but that is the kind of chart you would need to know if it is safe or not.

Haemphyst is right though, the safety of the install all depends on properly sizing your fuse size to your wire.  If your fuse is bigger then then the wire can handle there is the possibility of a fire.

Added to my favorites, too, thank you for the info.