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Automatic Tri-Coupler


The Tri-coupler allows automatic connection ofair and electrical train lines upon mechanical coupling of cars. Presently, these are connected manually by a brakeman stepping between cars to make the connections. Separation of air and electrical lines is automatic in both cases.


  • Increase crew safety by eliminating manual air and electrical connections for air brake and Electrically Controlled Pneumatic (ECP) lines 
  • Retains normal mechanical coupling 



  • Provides normal mechanical coupling
  • Provides automatic pneumatic coupling for airbrake system
  • Provides automatic electrical coupling for ECP brake system
  • Feedback on coupling status in ECP environment
  • Overlays on existing equipment


For more information please contact:  202-493-6358  202-493-6369




  • Contact us
  • Federal Railroad Administration
    1200 New Jersey Avenue, SE
    Washington, DC 20590
  • Regional Offices