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Advanced features + Highest level of safety = NEW SE4D Safety Light Curtains

The next generation of advanced light curtains, new SE4D safety light curtains offer high functionality with integrated features that include no dead zone, a muting function, EDM and blanking functions, IP67 protection and more! Offering the highest level of safety with Category 4, PLe, and SIL3 ratings, new SE4D light curtains offer your customers an advanced light curtain solution.


No "dead" zone

Conventional light curtains have a "dead zone" where there are no beam axis at both ends, but with new SE4D Safety Light Curtains, detection can be performed along the entire area! Since it isn't necessary to install them outside of the detection area, the SE4D light curtain can fit into almost any system.


Muting function

Equipped with a muting function that causes a line to stop only when a person passes through the light curtain, but does not stop the line when an object passes through, this muting sensor and muting lamp can be directly connected to the light curtain so no special controller is required.


Built-in EDM function

Because the light curtain has a built-in EDM (external device monitoring), a safety circuit can be easily constructed without a safety relay module, making it easy to downsize a control panel and reduce costs.


Blanking functions

Fixed blanking function prevents the control output from turning off when a specific beam is interrupted, while floating blanking function prevents the control output from turning off when the number of beams interrupted is less than the set number.


Fast response time

Regardless of the the number of beams or the number of light curtains connected in series, the response speed is 14ms maximum, making it easy for safety distances to be calculated.


Supports PNP and NPN outputs

Both PNP transistor output and NPN transistor output are available in one light curtain, so that a single light curtain supports control circuits worldwide.


SE4D light curtains are Type 4, Category 4, PLe, SIL3 with an IP67 degree of protection. Because of its dust and watertight structure, SE4D can be used in harsh environments over a long period of time without deterioration caused by water splash.


  • Cascading with no dead zone
  • Built-in muting function
  • Built-in EDM function
  • Fixed and floating blanking function
  • Fast and Unified response time of 14ms
  • Supports both PNP and NPN outputs in a single model
  • Beam Axis Adjustment function
  • Type 4 Hand protection
  • Category 4, PLe, SIL3
  • IP67 Degree of Protection