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Normally open and Normally closed loop question

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SlicRic

New Member
I am building a Light, Sound and Touch activated switch. The actual kit instructions are a little misleading about the NO NC contacts, so please correct me if im wrong, when the relay is in it on position the NC contact form a closed loop, while the NO contacts form an opened loop. When the relay is in its off position, circuits attached to the NC and NO contacts are (respectivley) NC: Open loop, NO: Closed loop. Could you please tell me if there is something that I have mssed, or is this all in order?
Thanks, SlicRic.

NB: NC= Normally Closed
NO= Normally Open
 

Sceadwian

Banned
You have it exactly backwards. NC = means NORMALLY closed. So when there is no power to the relay it's closed. NO means NORMALLY open, so when there is no power applied it's open.
 
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