MX4100 / MX4200 series type 4 safety light curtains

Specific features of the MX 4200 light curtain

  • Fixed monitored blanking
  • Fixed partially monitored blanking
  • Floating blanking
  • Configurable tolerances for all blanking modes
  • Muting

Some common applications:

  • Presses, bending and cutting machines
  • Automatic or semi automatic assembly lines
  • Packaging and welding machines
  • Robotsand robotic applications

Intended Application

Hazardous point, area and access protection at machines.

The devices comply with the requirements of the relevant (Type 4 acc. IEC 61496-1/2, Cat. 4 / PL e acc. to EN ISO 13849-1, SILCL 3 acc. to EN 62061 / IEC 61508) and can be used in applications up to Cat.4/ PL e acc. to EN ISO 13849-1 and SIL 3 acc. to EN 62061 / IEC 61508.

The ISB MX series of Light Curtains are Type 4 Active

Optoelectronic Protective Devices (AOPD)

Common features of MX 4100 and MX 4200 light curtains

  • Supply voltage: 24 VDC
  • Enclosure rating (IEC 60529): IP 65
  • Operating temperature: 0 °C to 50 °C
  • Detection capability:
    • 14 mm for finger protection
    • 22 mm, 30 mm and 38 mm for hand protection
    • 82 mm for body protection 
  • Protective field height: 300 mm to 1800 mm
  • Maximum range : 10 m, depending on model
  • Start/ Restart Interlock, selectable.
  • EDM: External Device Monitoring, selectable.
  • OSSD two separate safety outputs.
  • Easy set-up, no separate software or computer required
  • Individual indicators for each beam
  • Solid Aluminium construction
Compliant with the following standards:
  • IEC 61496-1:2012 
  • IEC 61496-2:2006 
  • EN ISO 13849-1:2008 + AC:2009 
  • EN 62061:2005 
  • IEC 61508 Parts 1-7:2010 
  • IEC 60204-1:2009 
  • EN 50178:1997 
  • ANSI B11.19:2010 
  • ANSI/RIA R15.06:1999



All operational parameters of the MX4000 series of light curtains can be configured according to the specific requirements of the end users using the MX4000-PT unit. With this simple and reliable tool, the user may program parameters for blanking, muting and other functions without the use of computers or additional software.


The MX series of light curtains are designed with multiple indicators to facilitate its use and indicate the status of the unit at any given time.

3 Bright LED indicators

  • Red/green for status
  • Blue solid indicates active blanking mode
  • Blue flashing indicates muting
  • Yellow solid indicating Lock-out condition
  • Yellow Flashing for interlock condition is engaged
  • Each beam has its own red status indicator on the detector unit
  • Red Beam status indicators also designate the blanked-out region by blinking

Model designation:  M X 4 “M” “DC” – “H”

“M” (model) is 0 (emitter), 1 (basic detector) or 2 (advanced detector, blanking and muting capabilities)
“DC” (detection capability) is 14, 22, 
30, 38 or 82 mm
“H” (protective field height) is 300, 
450, 600, 750, 900, 1200, 1500 or 1800 mm


MX Light Curtains Interface Box

Safety relays

Junction Blocks
for MX4100/MX4200 light curtains

Parameterization tools

Connector cables for MX4100/MX4200 light curtains

MX split collar mounting brackets


24VDC power supply

Expansion safety relays


MX4000 series light curtains brochure

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Installation Manuals

Installation Application Note AN-0009

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MX4000 user and installation manual

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TÜV Rheinland Certificate - Type 4

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