Safety light curtains
C4000 Advanced Ex

Safety in explosive environments

Your Benefits

  • Compatibility with numerous SICK safety light curtains makes high flexibility in the application solution possible
  • Durable housing
  • Simple installation and alignment with the special mounting system
  • Quick commissioning of pre-mounting systems, comprises light curtain and housing
  • Low downtimes thanks to resistance to water and dust as a result of enclosure rating IP 66
  • Well visible LED status indicator for quick fault diagnosis
  • Global availability and support for the entire safety solution


Safety in explosive environments

The explosion-proof enclosure for safety light curtains is designed and approved for use in hazardous locations according ATEX for gas: II 2 G Ex d IIB T6 Gb, for dust: II 2 D Ex tb IIIC T56°C Db. NFPA 70/NEC 500, Class I, Div. 1, groups C and D, Class II, Div. 1, groups E, F and G and Class III, Div. 1. The enclosure is compatible with a variety of SICK safety light curtains to fit multiple applications including paint booths, granaries, chemical processing and many others. The explosion-proof enclosure and safety light curtains have been tested together and are UL listed to give you the peace of mind that your safety solution meets the necessary safety and regulatory standards.

At a glance
  • ATEX for gas: II 2 G Ex db IIB T6
  • ATEX for dust: II 2 D Ex tb IIIC T56°C Db IP6X
  • NFPA 70/NEC 500 Class I, Div. 1, Groups C and D
  • NFPA 70/NEC 500 Class II, Div. 1, Groups E, F and G
  • NFPA 70/NEC 500 Class III, Div. 1
  • Available in protective field heights of 600 mm, 900 mm and 1,200 mm
  • Resolution of 30 mm
  • Scanning range of 16 m


By partnering with us, you can benefit from our expertise in the functional safety of productivity-increasing safety solutions. So that your processes run smoothly, man and machine work as a team, and we can jointly push the boundaries of what is achievable.

Boost your productivity - with safety solutions from SICK


Technical overview

  • Technical data overview

    Technical data overview

    Safety levelType 4, PL e, SIL3, SILCL3
    Resolution30 mm
    Scanning range16 m
    Protective field height600 mm / 900 mm / 1,200 mm
    Enclosure ratingIP65, IP66
    Ambient operating temperature0 °C ... +55 °C
All technical data can be found accompanying the individual product