Different Types of Electrical Contacts - Normally Open and Normally Closed Contacts

Posted by Tim on Jan 25 2018

Different Types of Electrical Contacts - Normally Open and Normally Closed Contacts

These two contacts form the basics of most electrical drawings but we still receive lots of questions asking us to clarify the difference between a normally open (NO) and a normally closed (NC) contact.


Electrical contacts make up electrical switches, relays, circuit breakers, and most any other electrical component that switches something on/off or can be switched on/off.

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