Wired Contact Closure Relay

Wired Contact Closure at a Glance...

  • Sender Board Controls the Receiver Board
      - Sold in Pairs
      - 4 Contact Closure Input on Sender Board
      - 4 Relay on Receiver Board
  • Wired Operation Up to 1000'
     - Using 3-Wire Cable
  • Sender Displays Status of Remote Relays

Wired Contact Closure

MirC controllers allow contact closure inputs to control relays in a remote location using a two board design. The sender board is equipped with contact closure inputs, used to control relays on the receiver board.  Both sender and receiver boards are included when you purchase a MirC pair.

Contact Closure Input & Output

The relays on the receiver board can be used to interrupt the power of a device you are switching and also as a dry contact closure output.  Applications where you need to extend the range of a contact closure over a distance the MirC will work.  Connect the Contact Closure output of your device to the Sender Board then wire the relay on the Receiver Board as your contact closure input in a remote location.

Selecting a Wired Contact Closure Relay

MirC boards boards below have four relays installed and four contact closure inputs.  You now have your choice of 5, 10, 20 or 30 amp relay installed.  A simple dry contact closure will connect to the input of the sender board and trigger a corresponding relay on the receiver board.  These are sold as a pair and connected by using three wires.  For more information on selecting the correct relay for your application see Choosing a Proper Amperage.