SC relay – Latching, 8 contacts


The SC is a latching relay with 2 stable magnetically latched states. When 1 coil is energized, the relay actuates from magnetically latched position 1 to 2. When the other coil is energized, the relay actuates back from magnetically latched position 2 to 1. Relays have 8 double break contacts with different configurations.
The plug-in design offers secure locking feature for maximum ease of maintenance (no wires need to be disconnected or other hardware removed for relay inspection or replacement). The resistance to impact and vibration is conform to standards in force for Railway Transported Equipment.
Positive mechanical keying of relay to socket is built into relay and socket during manufacture and terminal identifications are clearly marked on identification plate that is permanently attached to the relay.
The SC relay is pluggable in the COR NJ socket.


The SC latching relay allows the memory of the state of the circuit in case of power interruption.


  • Latching relay using 2 separate coils and magnetic rocker mechanism
  • Double break in all N/O and N/C combinations
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • Weld no transfer safety contacts standard
  • Contact life (mechanical) of 50 million cycles
  • -40°C…+80 °C operating temperature


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

Railway compliancy

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



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