Get Normally Closed Relay
Images. Nc means normally closed terminals.and no means. I have the relay you see here:
Understanding Relays Wiring Diagrams Swe Check from www.swe-check.com.au
The com pin is common to other two pins (nc and no). In the case if an electrically operated relay or valve, it means when there is no power to. Not all relays have a normally closed connection.
When a relay contact is normally closed (nc), there is a closed contact when the relay is not energized.
Some relays are constructed with a kind of shock absorber mechanism attached to the armature the following is a timing diagram of this relay contact's operation: The com pin is common to other two pins (nc and no). A normally closed relay will switch power off for a circuit when the coil is activated. In what ways are control relay coils and conrtacts rated?
