Fuse Rating Alternator Field & Regulator

[jgd]

I am connecting my NS2 regulator and 4023 alternator and want to use blade type fuses. Unfortunately, the blade type fuses do not appear to be available in the 8 amp rating. Will 7.5 amp fuses work, should they be fast or slow if the lower rating can be used?

[Coulomb]

7.5 slow blow should work. Remember, fuse are there to prevent wires from burning up. Place them close to the source of power.

No fuse is fast enough to protect a semiconductor.