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D6-U200N-W Instantaneous relay, weld-no-transfer, 6 pole



Plug-in safety critical railway relay with 6 weld-no-transfer single contacts. Also equipped with a back EMF suppression diode. No external retaining clip needed as integrated ‘snap-lock’ will hold relay into socket under all circumstances and mounting directions. The construction of the relay and choice of materials makes the D6-U200N-W relay suitable to withstand corrosive atmospheres, low and high temperatures, shock & vibration and dry to very humid environments. Compact design, choice of many options and a wide range of sockets makes the D6-U200N-W relay an easy and flexible solution to use.


Rugged plug-in relays for safety critical, extreme reliable and long endurance applications in harsh environments. These relays are designed for demanding rolling stock applications such as door control, traction control, braking systems etc.


  • Compact plug-in design
  • Instantaneous, 4 N/O - 2 N/C contacts
  • Weld-no-transfer (WNT) contacts
  • Standard back EMF suppression diode
  • Flat, square silver plated relay pins for excellent
  • socket connection
  • Wide range sockets
  • Integrated snap lock
  • Red or green LED optional
  • Flexibility by many options

Railway compliancy

  • EN 50155 : 2017 Railway applications - Rolling stock - Electronic equipment
  • IEC 60571: 2012 Railway applications - Electronic equipment used on rolling stock
  • IEC 61373: 2010 Railway applications - Rolling stock equipment - Shock and vibration tests
  • EN 50121-3-2: 2016 Railway applications - Electromagnetic compatibility
  • NF F16-101/102 Railway rolling stock - Fire behavior
  • EN 45545-2: 2015 Railway applications - Fire protection on railway vehicles Part 2: Requirements for fire behavior of materials and components



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Railway rolling stock
Railway signalling