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KOB21 Emergency Stop Button

The KOB21 is an Emergency stop for safety critical installations.

Quantity discount

Quantity 1-4 5-9 10-14 15+
Price £16.23 £15.42 £14.61 £13.80



The Duomo KOB21 breaks control circuits in an emergency for applications.

The KOB21 Emergency Stop Button is a high quality latching assembly suitable for ratings up to 600V at 10A.  For example gas supply isolation in science laboratories, boiler houses and process burner plants. In addition it can be used in conjunction with Duomo gas detectors and thermal fusible links. Finally, the KOB21 Emergency Stop Button is double insulated has a IP65 protective rating.


Product Details

  • Twist to reset
  • IP65 protective rating
  • Double insulated
  • Preformed 20mm knockouts
  • 600V 10A normally closed contact
  • Breaks control circuits in emergencies


Onsite Diagnostics

If you require onsite diagnostics or technical assistance with any of our products please contact us

  • This field is for validation purposes and should be left unchanged.


We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.



  • KOB21 Emergency Stop Button

    102.81 KB | pdf


Support & Service

If you require technical assistance or an annual service on this product please contact us and we will be happy to help. Our qualified team of engineers are available Nationwide.

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