Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
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Command and signalling devices

Field of application:
The command and signaling devices of the Ex-R series are particularly suitable for applications in explosive environments and meet the requirements of the zones 1, 2, 21 & 22. The devices are furthermore suitable for use under rough ambient conditions as well as for operation with gloves because of their large actuating surfaces.


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