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Photoelectric Sensors


Diffuse-reflective, Sensing distance White paper 300 x 300 mm: 1 m, Light-ON/Dark-ON selectable, NPN, M12 connector models, Red LED (624 nm)

Sensing method Diffuse-reflective
Sensing distance White paper 300 x 300 mm: 1 m
Light source Red LED (624 nm)
Connection method M12 connector models

Item list of E3FA, E3RA, E3FB, E3RB

  • Ratings/Performance
ShapeCylinder type
Sensing methodDiffuse-reflective
Sensing distanceWhite paper 300 x 300 mm: 1 m
Spot size120 x 150 mm (sensing distance: 1 m)
Differential distance20% max.
Light sourceRed LED (624 nm)
Power supply voltage10 to 30 VDC±10% ripple (p-p) 10% included
Current consumption25 mA max.
Control outputNPN open collector
30 VDC max.
100 mA max.
Residual voltage: 3 V max.
Operation modeLight-ON/Dark-ON selectable
Protective circuitOutput short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection
Response timeOperate or reset: 0.5 ms max.
Sensitivity settingSingle-turn adjustment
Ambient illuminanceIncandescent lamp: 3,000 lx max.
Sunlight: 10,000 lx max.
Ambient temperature range (Operating)-25 to 55 ℃ (with no freezing or condensation)
Ambient temperature range (Storage)-40 to 70 ℃ (with no freezing or condensation)
Ambient humidity range (Operating)35 to 85% (with no condensation)
Ambient humidity range (Strage)35 to 95% (with no condensation)
Insulation resistance20 MΩ min. (500 VDC megger)
Dielectric strengthBetween charged parts and the case: 1000 VAC 50/60 Hz 1 min
Vibration resistanceDestruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 h
Shock resistanceDestruction: 500 m/s2 3 times each in X, Y and Z directions
Degree of protectionIEC: IP67
DIN40050-9: IP69K
Connection methodM12 connector models
IndicatorOperation indicator (orange), Stability indicator (green)
WeightPackage: Approx. 20 g
Main Unit: Approx. 10 g
AccessoriesInstruction sheet, M18 nuts
MaterialCase: ABS
Lens: Methacrylate resin (PMMA)
Display: Methacrylate resin (PMMA)
Adjustment: POM
Nut: POM
  • Dimensions

  • Output circuit diagram

  • Operating range

  • Setting distance

Sensing object size vs. setting distance


Photoelectric Sensors