I don't know your amp,but that sounds more like an amps power consumption rating.The fuses in it most likely have a single rating on them.IE,5 amp 250 volts,or 5 amp,125 volts.If it doesn't say where the fuse is mounted,let someone who knows, see the fuse.In general,a fast blow may have one solid wire in them.A slow blow may have a spiral looking type of wire in it.These are for glass fuses in general,and may not always apply.