SAFETY RELAY – VITAL RELAY RS4: Signaling applications

RS4 relays are used in new signalling systems. Their features and ease of installation save space and allow the entire signaling system to be installed in a single cabinet.

Interface relay for SIL4 PLC:

Ensures galvanic isolation between PLC and wayside equipment
Maintain SIL4 level between relay and PLC


  • Luxtram (Luxembourg),
  • Tramway Nice (France),
  • Tramway Caen (France),
  • Tramway Paris (France),
  • Tramway Bordeaux (France).

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