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Untitled Document
  Voltage monitoring for 3-phase
  networks
  Two setting ranges for
  response and release value
  Adjustable relay delay from
  0-10s
  For networks with or without
  neutral conductor
  With optional phase sequence
  monitoring and signalling

 



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  Over- and under-voltage and
  phase imbalance limit points
  digitally programmable,
  independently of one another
  Phase sequence fault detection
  High repeatability through
  innovative microprocessor
  technology
  Voltage monitoring based on
  RMS measurement
  Adjustable relay delay up to
  24.9 seconds per limit point
  Easy to read LCD display
  Password protected
  programming access

  Introduction / Technical Data   Introduction / Technical Data
 
    M169 Measuring Relay





  Phase sequence monitoring
  for 3-phase networks
  Two types available:
  1) Wide supply voltage range
      (230 - 480VAC)
  2) 400 VAC with phase loss
      detection even with back emf
  No auxiliary supply required
  Two change-over contacts
  Two diagnostic LEDs

 




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