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A switch is a mechanical device , manualy operated, like switches on the lights or all over your car. you or a device moves or pushed them. for instance the door safty, when you open the door it opens to shut down, matter of safety, a relay however is normaly a switch that is operated thru a coil/magnet by electricity from another source
a switch will have only two terminals for wires, a relay however will have several,
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Thank God I'm a country boy-John Denver
Thank God for a backup comp. Alondra
Last edited by alondra; 06-12-2003 at 04:31 PM.
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