Originally Posted by Dgonza9
I recently created a control panel and wired a switch in front of the PID. I'm wondering if I need a fuse. I've seen some people recommend this in reading around the board. I pretty much followed the RIMS for Dummies wiring diagram.
I can post a pic of my wiring schematic, but I thought it might not be necessary for the question. Do I need a fuse to protect the pid?
You would want a fuse to protect the wiring to the PID. Suppose the wire feeding the PID comes loose and touches ground, a low amperage fuse will protect the wire from burning and setting the control panel on fire. If the PID all of a sudden starts drawing excess current, then it is already broken, but the fuse will protect the wiring to it.
I am going to have my lower power stuff on one 5A circuit breaker in the control panel, protecting 14 AWG wiring, and then a smaller one for the transformer. Others have multiple circuit breakers, one for each load, sometimes serving as switches also. It really is up to you.