EA103 relay socket


The EA 103 socket has M3 screw 6.5 mm ring terminal to allow front connection on the socket.
The EA 103 AF or BF socket is equipped with wire locking spring mechanism. Hexagonal plastic keys and round plastic plugs are provided for relay type coding, but not inserted. Keying can be provided as an option with matching relay keying.
The EA 103 AF socket is suitable for all A type relays and modules.
The EA 103 BF socket is suitable for all B type relays and modules.


The EA 103 socket is designed for surface mount of relays and modules with screw terminals connection and provide optional 35 mm rail mount accessory.


  • Front connection, with screw terminals
  • No internal soldering / connections
  • For surface or optional 35 mm rail mount
  • Wire locking spring
  • EA 103 AF suitable for all A series relays and modules (A 400, AK, AM, AG, TALOR, TAC)
  • EA 103 BF suitable for all B series relays (B 400, BK, BM, BG, TBBU)
  • -40 °C…+80 °C operating temperature


  • Proven reliable
  • Long life cycle
  • Easy to maintain and replace
  • Low life cycle cost
  • No maintenance

Railway compliancy

  • NF F 62-002 Rolling stock – Instantaneous relay contacts and sockets
  • NF F 16-101/102 Fire behaviour – Railway rolling stock

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