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What’s the NC and NO tact switch?

What's the NC and NO tact switch?

What’s the NC and NO tact switch?(图1)

If the two contact is conducting,it's called NC normally closed,on the contrary,the contact is breaking,it's NC normally open.

The common style tact switch will be conducted when you press it down,if you release it,it breaks the ciruit.

Our Momentary push button illuminated switches are momentary SPST function,and normally open tactile switches.

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