[EricH]

Originally Posted by sparrowkc

I am wiring up some Spike relays to control solenoids for our "apparatus". I don't want to waste a bunch of 14 gauge wire to do this, and I was wondering If I can put like a 5 amp fuse in the fuse block or in the relay where the 20 amp regularly is.

I have black and red 24 Gauge wire to use. What type of fuse would I have to put in for that?

The answer is, you must follow the wiring rules. So NO on a 5 A fuse/breaker.

As for what fuse, you need to keep the 20A fuse in the Spike and use a 20A breaker in the panel.

(And, this may sound silly, but you should read Section 8.3.6. It has all the wiring rules.)