V23BR socket - Screw terminal, rail mount



The V23BR is a 35 mm rail mount relay socket with extra space for ring tabs. The V23BR socket has one screw terminal per relay contact suitable for two wires up to 2.5 mm2 and 9 mm ring tabs, so looping/daisy chaining can be done on the socket and no external connector or terminal is needed.
To prevent fault relay placement the socket can be equipped with mechanical keying to accept only designated identical keyed relays.
Clear UP arrow for correct 35 mm rail mounting.


The V23BR relay socket is suitable for general railway applications with a space saving design, where extra space for ring tabs is necessary. Installation and replacement of relays is made easy and cost saving. No maintenance is required for the user.
Suitable for all D-U relay series.


  • 35 mm rail mount
  • Sturdy screw terminals
  • Suitable for 9 mm ring tabs
  • Height saving 35 mm rail mounting
  • Suitable for all D-U 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 - mounting rail
  • NF F 62-002 On-off contact relays and fixed connections

Product information request

Railway rolling stock
Railway signalling