Sensors for factory automation hero

CX-400 photoelectric sensor

The CX-400 series is a matchbox size sensor for lots of standard applications.
CX-400 photoelectric sensor shadow


For the CX-400 series, the user has a large selection of ultra compact photoelectric sensors at his disposal. The series includes three thru-beam, five retroreflective, four diffuse reflective and three trigonometric types with foreground/background suppression. With its new ASIC (application specific integrated circuit), the sensors require up to 60% less energy than before.


  • Three thru-beam, five retroreflective, eight reflective types
  • Light ON/Dark ON modes
  • Short-circuit protected
  • IP67 degree of protection
  • Up to 60% less power consumption
Product Finder

Use the Product Finder to find the best product for you

product finder Panasonic Industry
Find the optimal product for your project by selecting attributes and filter criteria

CX-400 thru-beam types

Thru-beam types are available with sensing distances of up to 10m, 15m and 30m. Despite their extremely small design, the sensors nevertheless boast a long sensing range. With the new ASIC, the sensor's power consumption is as much as 60% lower than before.


  • Slit masks
  • Polarizing filter for interference prevention
  • Sensor mounting bracket
  • For M8 connector types: Cable lengths of 2 or 5m

CX-400 retroreflective types

The five retroreflective types offer not only various sensing distances of up to 5m (CX-493), but they are also extremely compact. The CX-491 features a polarizing filter and visible beam spot for detecting reflective objects, while the three types with less hysteresis - CX-481, CX-482 and CX-483 - reliably detect transparent objects. When the sensors are mounted closely together, interference prevention kicks in.


  • Sensor mounting bracket
  • For M8 connector types: Cable lengths of 2 or 5m

CX-400 diffuse reflective types

All together, four diffuse reflective types with automatic interference prevention are available. The narrow-view type with background suppression and a visible beam spot detects objects with a diameter of just 0.5mm. Three diffuse reflective types with sensing ranges from 100mm to 800mm round of the CX-400 series.


  • Sensor mounting bracket
  • For M8 connector types: Cable lengths of 2 or 5m

CX-400 trigonometric type with foreground/background suppression

The trigonometric type with switchable foreground/background suppression has four different models to offer. Besides the one with a beam spot of 2mm in focus, models with sensing ranges of up to 300mm are available.


  • Sensor mounting bracket
  • For M8 connector types: Cable lengths of 2 or 5m


Photoelectric sensor CX-400 applications Panasonic Industry
  • Detecting cars on conveyor lines
  • Detecting transparent bottles
  • Detecting labels
  • Detecting transparent glass bottles


Name File Type Size Date Language
PDF Amplifier Built-in Small Photoelectric Sensor Instruction Manual, MJECK-CX440 Manual 833.9 KB 10.04.2024 English, Japanese, Chinese, simplified
PDF Brochure "Focus Automazione" Catalog, Shortform 3.1 MB 01.04.2022 Italian
PDF Brochure Capteurs Catalog, Shortform 32.5 MB 13.09.2021 French
ZIP CX-400 2D Data CAD 1 MB 01.06.2007
ZIP CX-400 3D Data CAD 310.8 KB 01.06.2007
PDF CX-400 Bedienungsanleitung Manual 1.3 MB 01.04.2012 German
PDF CX-400 Instructions Manual 1.3 MB 01.04.2012 English
PDF CX-400 Manuale di istruzione Manual 1.3 MB 01.04.2012 Italian
PDF CX-400 Manuel d'instructions Manual 1.4 MB 01.04.2012 French
PDF CX-400 Serie Instrucciones, MEUES-CX400 Manual 1.4 MB 01.01.2015 Spanish
PDF CX-400 User's Manual Manual 570.5 KB 01.12.2010 English
ZIP CX-440 2D Data CAD 12.7 KB 01.06.2007
ZIP CX-440 3D Data CAD 475.6 KB 01.06.2007
PDF CX-440 Bedienungsanleitung Manual 760.9 KB 01.02.2012 German
PDF CX-440 Instruction Manual Manual 738.7 KB 01.02.2012 English
PDF CX-440 Manual de Instrucciones Manual 766.5 KB 01.02.2012 Spanish
PDF CX-440 Manuale di istruzione Manual 759.9 KB 01.02.2012 Italian
PDF CX-440 Manuel d'instructions Manual 762.5 KB 01.02.2012 French
PDF CX41x, CX42x, CX46x, CX48x, CX49x Instruction Manual, MJECK-CX400 Manual 667.7 KB 10.04.2024 English, Japanese, Chinese, simplified
PDF Catálogo Resumen Sensores Data sheet 29 MB 28.04.2021 Spanish
PDF Control de Aforos. Detección óptica independiente de color, material y forma. Flyer 818.8 KB 07.05.2020 Spanish
PDF Data sheet CX-400 Data sheet 5 MB English
PDF Data sheet CX-440 Data sheet 497.8 KB Italian
PDF Data sheet CX-440 Data sheet 992.3 KB English
PDF Datenblatt CX400 Data sheet 988.2 KB German
PDF Optical sensors for people detection Flyer 1 MB 01.01.2015 English
PDF Optische Sensoren zur Personenerkennung Flyer 2.6 MB 01.01.2015 German
PDF PF-CX4-V, PF-CX4-H Instruction Manual MJE-PFCX4 Manual 394 KB 10.04.2024 English
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 Sensor Selection Guide for Packaging Industry Catalog 14.7 MB 12.07.2022 English
PDF Sensori Fotoelettrici Guida tecnica Data sheet, Technical information 1.9 MB 01.05.2006 Italian
PDF Sensors & Ionizer Solutions Catalog for Laboratory Automation Catalog 1.8 MB English
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 Solutions for Liquid Dispensing Processes. For Clinical Diagnostics Instruments. Catalog 3.3 MB 18.11.2021 English
PDF Top seller - Automation products, 6215euen Catalog, Shortform 15.7 MB 04.05.2023 English
PDF Übersicht Sensoren Catalog, Shortform 28 MB 05.05.2022 German
PDF Übersicht Topseller Automatisierungstechnik, 6215eude Catalog, Shortform 15.6 MB 24.04.2023 German