LCA 4 Master/Slave Light Curtains


EUCHNER LCA light curtains are non-contact safety guards for securing danger areas on machines and installations. They use several light beams to form an invisible safety light curtain in front of a dangerous area. The light curtain consists of a transmitter and receiver that emit and receive the light beams. If a beam is interrupted, the light curtain safety outputs will switch off. LCA light curtains are available in several beam spacings (resolution) and lengths (protected heights). Available in Protected Heights range from 160 to 1210mm. Depending on the model, the transmitter and receiver can be mounted up to 6 or 12 meters apart. Master/Slave units have an additional connector on top so units can be chained in series with up to two Slave sets for an application that requires physical configuration flexability.



  • High level of protection against tampering
  • Series connection of up to 3 light curtains
  • Simple connection with M12 plug connector
  • Integrated evaluation
  • Feedback loop connection
  • LED Status Indicators


  • Safe monitoring options for any application
  • Easy installation
  • Short circuit proof outputs
  • Unshielded M12 cable connections
  • Safety Category 4 and PL e according to EN ISO 13849-1
  • ESPE Type 4 according to DIN EN 61496-1


  • Protection IP65/IP67
  • Ambient operating temperature -30 to + 55°C
  • 2 self-monitoring PNP safety outputs
  • Ranges 6 and 12 meters max.
  • Connection cable length 100m max.
    • 50m max between Master and Slave
  • Reaction time - depending on combination info
  • 24VDC +/-20%
  • 400mA current consumption
  • Power
    • Transmitter 1 watt
    • Receiver 2 watts
  • Housing cross-section 28x30mm

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