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CU-U200-D relay - Miniature, large pull-in voltage range



Miniature railway relay with one change-over contact and one normally-open contact. Very sensitive relay with a large pull-in voltage range: 40 %...125 % of the nominal voltage. The contacts are weld-no-transfer contacts: they are mechanically forced in the same position. Standard with high insulation because of flash barrier. Relay for plug-in mounting (CU version) or PCB mounting (CP version).
The construction of the relay and choice of materials makes the CU/CP-U200-D relay suitable to withstand corrosive atmospheres, low and high temperatures, shock & vibrating and dry to very humid environments.
With a very compact design and a wide range of sockets, the CU/CP-U200-D relay is an easy and flexible solution to use.


These relay series are designed for rolling stock applications where available space is limited. The CU/CP-U200-D is used in applications with a big variation in power supply, or with very long power lines.


  • Miniature plug-in / PCB relay
  • Sensitive coil (40 % Unom)
  • Instantaneous 1 C/O + 1 N/O contact
  • Weld-no-transfer contacts
  • Flat, square and tin plated relay pins for excellent socket connection / PCB mounting pins • Wide range sockets
  • Transparent cover
  • High insulation because of flash barrier
  • Optional positive mechanical keying relay to socket  


  • Proven reliable
  • Long term availability
  • Easy to maintain
  • Used in safety critical applications
  • Low life cycle cost
  • No maintenance  

Railway compliancy

  • EN 50155 Electronic equipment used on rolling stock for railway applications
  • IEC 60571 Electronic equipment used on railway vehicles
  • IEC 60077 Electrical equipment for rolling stock in railway applications
  • IEC 60947 Low voltage switch gear and control gear
  • IEC 61373 Rolling stock equipment - Shock and vibration test
  • EN 50121 Electromagnetic compatibility for railway applications
  • NF F 16-101/102, TS 45545-2 Fire behaviour - Railway rolling stock
  • IEC 60529 European standard describes the protection class (IP-code)
  • NF F 62-002 On-off contact relays and fixed connections



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Railway rolling stock
Railway signalling