Why I can not reply to emails on my iPad? I get the message "the recipient has been rejected because the server does not allow relaying".
how does an AC relay work?
I was putting some relays in the other day for a damper actuator and wiring them for N.C. I'm thinking that this means that when there is NO power to it, the relay's contacts remain 'made' and when ...
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Posted by Brian 3 years ago