I have a 10A rated Arduino Relay shield. I have a 3A 12V device I want to power with it (turn on only after Arduino does some startup stuff). Will the 10A relay handle the 3A passing through it continuously? I know non SSD relays can get rather hot when turning on/off rapidly, but dont know what the case is with continuous On.
If it turns out to be risky, maybe I could have it the opposite way: power when SSD is in "off" state. This does mean the device will be powered for a split second before Arduino starts.