KCS-U200 relay – Latching , 2 pole


Bistable railway relay with two change-over contacts. The contacts remain in the last powered position. Bistable by means of two coils and a mechanical rocker mechanism. The two separate coils are galvanically isolated. The contacts are weld-no-transfer contacts: they are mechanically forced in the same position.
The KCS-U200 relay is a compact design relay connected with 2.8 x 0.8 mm fastons. The construction of the relay and choice of materials makes the KCS-U200 relay suitable to withstand low and high temperatures, shock & vibrating and dry to humid environments.


These relay series are designed for demanding rolling stock applications. The KCS-U200 is used in applications where two contacts are used in one relay and the contacts are set and reset with permanent power or impulses.


  • Latching (bistable) relay
  • Compact design
  • 2 C/O contacts
  • 2 galvanic isolated coils
  • Weld-no-transfer contacts
  • Flash barrier
  • 2.8 x 0.8 faston connections
  • Transparent cover


  • Proven reliable
  • Long term availability
  • Easy to maintain
  • 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
  • IEC 60947-5-4 Electromechanical components for control applications. This standard examines both coil and contact specifications in depth
  • EN 50121 Electromagnetic compatibility for railway applications
  • NF F 16-101/102, TS 45545-2 Fire behaviour – Railway rolling stock
  • NF F 62-002 On-off contact relays and fixed connections




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