JeremyAdair87
Member
I know I should go to an electrical forum for this but I am comfortable here.
I've seen two ways to fuse.
In one scenario you put a 15 amp fuse on the wire to make sure the 120v never gets hot enough to start a fire. I would use an electrical reference for the wire gauge. I am simplifying.
I've also seen say a 5 amp fuse instead because the device connected to the 120V should never pull more than 4 amps.
I got into a recent debate with another EE and I am curious which is correct. In most places that I've seen you fuse the main wires coming in for protecting the wire and then go much smaller for the devices down stream. It seems crazy to put a 15 amp fuse on a 2.3 amp controller with nothing else in parallel on the power of that wire.
I've seen two ways to fuse.
In one scenario you put a 15 amp fuse on the wire to make sure the 120v never gets hot enough to start a fire. I would use an electrical reference for the wire gauge. I am simplifying.
I've also seen say a 5 amp fuse instead because the device connected to the 120V should never pull more than 4 amps.
I got into a recent debate with another EE and I am curious which is correct. In most places that I've seen you fuse the main wires coming in for protecting the wire and then go much smaller for the devices down stream. It seems crazy to put a 15 amp fuse on a 2.3 amp controller with nothing else in parallel on the power of that wire.