Obsolete Railway Relay Sockets

V25 socket - Faston terminal, rail mount


This product is no longer available. The replacement sockets are the V23 and the V29.

Click here to go to the product page of the V23.

Click here to go to the product page of the V29.


The V25 is a 35 mm rail mount relay socket. The V25 socket has one terminal per relay contact with tabs for one faston of 6.3 x 0.8 mm or two fastons of 2.8 x 0.8 mm.
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 mounting.


The V25 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 D-U relay series.


  • 35 mm rail mount
  • Sturdy faston terminals
  • Space saving
  • Suitable for all D-U relay series
  • 1 faston 6.3 x 0.8 mm or 2 faston 2.8 x 0.8 mm
  • 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