Obsolete Railway Relay Sockets

V11 socket - Screw terminal, wall mount, protection diode


This product is no longer available. The replacement socket is the V16.

Click here to go to the product page of the V16.


The V11 is a surface / wall mount relay socket. The V11 socket has one screw terminal per relay contact suitable for two wires up to 2.5 mm2, so looping/daisy chaining can be done on the socket and no external connector or terminal is needed.
Optional 35 mm rail mount with A109 rail clip.
The V11 has a back EMF protection diode included, to protect connected electronics against a voltage surge.
To prevent fault relay placement the socket can be equipped with mechanical keying to accept only designated identical keyed relays.


The V11 relay socket is suitable for general railway applications with a space saving design. Installation and replacement of relays is made easy and cost saving. No maintenance is required for the user.

Suitable for all CU relay series.


  • Surface / wall mount
  • Optional 35 mm rail mount with A109 rail clip
  • Sturdy screw terminals
  • Back EMF protection diode
  • Space saving
  • Suitable for all CU relay series
  • Up to two wires of 2.5 mm2 per connection terminal
  • Positive mechanical keying
  • Bifurcated female receiver for tight grip relay pin
  • Clear terminal ID


  • 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
  • NF F 16-101/102, TS 45545-2 Fire behaviour - Railway rolling stock
  • IEC 60715 Dimensions of low voltage switchgear and controlgear
  • NF F 62-002 On-off contact relays and fixed connections

Product information request

Railway rolling stock
Railway signalling