I like this idea Fred. You installed an in line fuse for your PDB, did you keep the in line fuse on your heated gear wire as well? I'm assuming you cut off the o-rings and just stripped the ends of the pigtails to wire it into your PDB?
Yes exactly right. The 30 amp fuse that feeds the PDB is as close as possible to the battery and it's primary job is to protect the heavy gauge wire running to the box. I then left the individual in-line fuses on the heated gear pigtails and just clipped off the ring lugs. I believe those are 15 amp fuses as supplied by First Gear.
If you opt for a Fuzeblock (like Tom mentions above) you'll still need to install the 30 amp main fuse back at the battery and run the heavy gauge feed wire. You could then cut off the individual in-line fuses in each pigtail, or leave them in there. I have a Fuzeblock under my seat on my V-strom as I power everything off of that. It is nice having the relay built into the Fuzeblock to switch the loads on and off with the ignition. But the PDB is about $60 cheaper.
One other point worth mentioning: The maximum fuse size that you can use in an application is based on the gauge of the wiring being protected, not by what the end device needs. Fuses protect wiring from going up in flames, not devices from cooking themselves. If your device consumes less that that maximum amount then it's fine to put a smaller fuse in, but never bigger.
PS - Here is a
link to a good wire size chart for automotive applications. You'll notice that, with our very short run lengths, we motorcycle farklers tend to oversize our wiring quite a bit. For instance, if you plan on running a 5 foot wire length you can carry up to 24 amps on a tiny 18 gauge wire.
For the run from the battery to a fusebox with a 30 amp fused maximum draw (capable of delivering 420 watts if the alternator was), you could get away with only using 16 gauge wire. I used 12 gauge wire because I already had a bunch of it laying around.