So I am just a mechanical engineering student and I am working on a personal project to learn more about circuits and how they work. I really don't know much about this stuff so any help would be great. What I am attempting to find is some type of time delay relay. What I need is a relay that has a 5-12v DC input and is normally closed. So when the voltage is supplied, it would be passing current straight through to energizing node 1. I would like to have a trigger(node 3) apply a low voltage with very low current(maybe 50 milliamps) to the relay and switch the relay from node 1 to node 2. Now the trigger would only be energized for a short time, but I would like the relay to stay switched to node 2 for around 5-10 seconds. Is this possible? Does a simple, inexpensive unit like this exist? I obviously don't know much so simple answers would help a lot! Thanks in advance!
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