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ST4 safety light sensor

ST4 safety thru-beam sensors.

ST4 sensors

Panasonic's new concept of connecting 6 sets of sensor heads to 1 controller in series offers you maximum flexibility to solve your safety application. Just configure exactly the number of sensor heads and controllers required to protect the area in question, e.g. small openings or irregularly shaped spaces impractical for safety light curtains.

A beam interruption indicator is incorporated in both the emitter and receiver, which not only eases confirming operation but also facilitates aligning the beam axis.

The high-functional controller ST4-C12EX immediately diagnoses misaligned or abnormal sensor heads. Its digital display allows you to identify errors at a glance, and it supports both PNP and NPN polarities, easing stock management.


  • Series connection of 6 sets of sensor heads to 1 controller
  • Compact design
  • IP67 degree of protection
  • Three muting function patterns
  • High-functional type controller
  • Safety category 4


  • Extension cables: 1, 3, 5, 7, and 15m
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ST4 applications Panasonic Industry
  • Protection for long sensing ranges
    Guard areas up to 15m in length, for example where protective fences are difficult to install.
  • Protection for small openings
    For small openings where light curtains do not fit, ST4 sensor heads ensure safety.
  • Protection against non-authorized entry
    Sensor heads can be mounted flexibly and muting control implemented easily.


Name File Type Size Date Language
PDF Brochure Capteurs Catalog, Shortform 32.5 MB 13.09.2021 French
PDF Catálogo Resumen Sensores Data sheet 30.6 MB 28.04.2021 Spanish
PDF Data sheet ST4 Data sheet 3.3 MB English
ZIP Panasonic Sistema library version 1.3 for safety products. Software, Library 726.6 KB 01.11.2022 German
ZIP Panasonic Sistema library version 1.3 for safety products. Software, Library 720.1 KB 01.11.2022 English
ZIP Panasonic Sistema library version 2.1.1 for safety products. Software, Library 1.5 MB 01.11.2022 German
ZIP Panasonic Sistema library version 2.1.1 for safety products. Software, Library 1.5 MB 01.11.2022 English
PDF Productos para la Seguridad Industrial Catalog, Shortform 6.6 MB 26.11.2019 Spanish
PDF Programma Sensori Catalog, Shortform 2.6 MB 11.01.2021 Italian
Raccolta Applicazioni Sensori Data sheet 24.2 KB 20.12.2018 Italian
PDF ST4 Bedienungsanleitung, MJDE-ST4 Nr. 0078-01V Manual 10.7 MB 19.11.2021 German
PDF ST4 Manual de Instrucciones, MJES-ST4 No. 0078-01V Manual 11.9 MB 01.05.2010 Spanish
PDF ST4 Manuale di istruzioni, MJIT-ST4 Nr. 0078-01V Manual 11 MB 19.11.2021 Italian
PDF ST4 Manuel d'instructions, MJFR-ST4 Nr. 0078-01V Manual 9.8 MB 19.11.2021 French
PDF ST4 Series Instruction Manual, MJE-ST4 Manual 3.1 MB 16.12.2021 English
ZIP ST4 series, 2D Data CAD 120.2 KB
ZIP ST4 series, 3D Data CAD 673.6 KB
PDF Sensor Selection Guide for Packaging Industry Catalog 14.7 MB 12.07.2022 English
PDF Sensoren Optoelektronische Schutzeinrichtungen Catalog, Shortform 5.7 MB 15.10.2018 German
PDF Sensori Fotoelettrici Guida tecnica Data sheet, Technical information 1.9 MB 01.05.2006 Italian
PDF Senzory - Zkrácená verze Catalog, Shortform 10.1 MB 28.01.2013 Czech
PDF Short Form Sensors for Factory Automation Catalog, Shortform 32.7 MB 08.07.2021 English
PDF Short form Industrial safety products Catalog, Shortform 6.9 MB 15.10.2018 English
PDF Übersicht Sensoren Catalog, Shortform 28 MB 05.05.2022 German