So I hooked my arduino up to a relay which I wired to my router. This allows me to easily reset the router from my computer without fumbling for wires. The arduino is in a box which receives the router power from a DC jack and sends it out via a repurposed RCA connector. Inside the box, some connections are made via jumper wires.
My question is this - Is this going to be too much current for the jumper wire? The power supply reads 12V with a max of 3 amps.
Am I playing with fire?