new wiring harness problems, HELP!!!

the fuse is blowing in the load curcuit.
here's the relay block I'm using, Erik builds them individually to the customer's requirements. It has five 30A fused relays, small wire is in, large wire goes to component. I'm running the fuel pump wire from the fuse box to the toggle, then from the toggle to the relay "in", then from relay "out" to the pump. The large red wire you see is 12V power to the relays with a fusible link.
http://wagongear.com/WiredWagon.html