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CR-U Pluggable Universal Relays

Pluggable universal interface relays

The ABB CR-U pluggable interface relay range is used for electrical isolation, amplification and signal matching between the electronic controls – PLC, iPC or field bus systems – and the sensor / actuator level. The CR-U range offers up to 3 contacts in one relay with an integrate test button, facilitating quick and easy commissioning. There are 12 different coil voltages available to suite applications worldwide.


  • Up to 3 contacts in one relay reduce wiring time
  • Manual test button reduces testing time
  • Customizable with pluggable function modules


  • 13 different coil voltages 12-220 V DC /12-230 V AC
  • 2 c/o contacts (10 A), 3 c/o contacts (10 A)
  • With or without integrated LED
  • Integrated test button for manual actuation and locking of the output contacts
  • Logic and standard sockets
  • Pluggable function modules such as RC elements and varistors available