Contact Closure Relay at a Glance...

  • Sender Board Controls the Receiver Board
      - Sold in Pairs
      - 4 Contact Closure Inputs on Sender Board
      - 4 Relays on Receiver Board
  • 3 Communication Options
      - Wireless up to 2-Miles
      - Ethernet for LAN or Internet
      - Wired with a 1000' Range
  • Sender Displays Status of Remote Relays
  • No Programming, No Configuration, No Computers

Contact Closure
Contact Closure Relay Over a Distance

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 Board

MirC boards are available with four different communication interfaces with your choice of 1, 2, 4, or 8 relays on the board and your choice of 5, 10, 20 or 30 amp relays 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 there are as many contact closure inputs as there are relays for each pair.

Selecting an Interface

How would you like the boards to communicate with each other?  Below you will find all the 1-Channel MirC interfaces that are available.  Each section is broken down by the interface installed on the board.  The interface will determine how the boards will communicate with each other.  The boards are a married pair and will only communicate with each other, even if there are other MirC boards within range!  Choose the interface you require and click that link.  This will bring you to a page where you will select a board based on amperage of the relay installed.