Omron E2E3 Cylindrical Proximity Sensor

Omron E2E3 Cylindrical Proximity Sensor uses high-frequency oscillation. They resist heat, chemicals, and water better than Rectangular Sensors. They are available in both shielded and unshielded models.

OMRON Sensing Components detect, measure, analyze, and process various changes that occur on productions sites, such as changes in position, length, height, displacement, and appearance. They also contribute to predicting and preventing future events.

Omron E2E3 Cylindrical Proximity Sensor Features and Benefits

  • CENELEC triple-distance
  • Normally open (NO), and normally closed (NC) mod- els are
  • Stainless steel and brass
  • 360° angle indicators


Size M8 M12 M18 M30
Type Shielded Shielded Shielded Shielded
Item E2A3-S08KS03-@@-B@ E2A3-S08KS03-@@-C@ E2A3-M12KS06-@@-B@ E2A3-M12KS06-@@-C@ E2A3-M18KS11-@@-B@ E2A3-M18KS11-@@-C@ E2A3-M30KS20-@@-B@ E2A3-M30KS20-@@-C@
Sensing distance 3 mm ± 10% 6 mm ± 10% 11 mm ± 10% 20 mm ± 10%
Ambient temp. Of -25 to 70°C 0 to 2.1 mm 0 to 4.2 mm 0 to 7.7 mm 0 to 14 mm
Ambient temp. Of -10 to 60°C 0 to 2.4 mm 0 to 4.8 mm 0 to 8.8 mm 0 to 16 mm
Differential travel 20% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard sensing object 9 ´ 9 ´ 1 mm 18 ´ 18 ´ 1 mm 33 ´ 33 ´ 1 mm 60 ´ 60 ´ 1 mm
Response frequency (See note 1.) 700 Hz 350 Hz 250 Hz 80 Hz
Power supply voltage (operating voltage range) 12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
Current consumption 10 mA max.
Output type -B models: PNP open collector
-C models: NPN open collector
Control output Load current 200 mA max. (32 VDC max.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Indicator Operation indicator (Yellow LED)
Operation mode -B1/-C1 models: NO
-B2/-C2 models: NC
For details, refer to the timing charts.
Protection circuits Power source circuit re- verse polarity protection, Surge suppressor, Short- circuit protection Output reverse polarity protection, Power source circuit reverse polarity protec- tion, Surge suppressor, Short-circuit protection
Ambient air temperature Operating: -25°C to 70°C, Storage: -25°C to 70°C
Temperature influence ±20% max. of sensing distance at 23°C within temperature range of -25°C to 70°C
-10% max. to +20% of sensing distance at 23°C within temperature range of -10°C to 60°C
Ambient humidity Operating: 35% to 95%, Storage: 35% to 95%
Voltage influence ±1% max. of sensing distance in rated voltage range ±15%
Insulation resistance 50 MÙ min. (at 500 VDC) between current-carrying parts and case
Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current-carrying parts and case
Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance 500 m/s2, 10 times each in X, Y, and Z directions 1,000 m/s2, 10 times each in X, Y and Z directions
Standards and listings (See note 2.) IP67 under IEC 60529 EMC under EN60947-5-2
Connection method -WP models: Pre-wired Models (4-mm dia. PVC cable with length of 2 m)
-M1 models: M12 4-pin Connector Models
-M5 models: M8 3-pin Connector Models
Weight (packed state) Pre-wired Models Approx. 65 g Approx. 85 g Approx. 160 g Approx. 280 g
Connector Models M12 Connector Models: Approx. 20 g Approx. 35 g Approx. 70 g Approx. 200 g
Material Case Stainless steel Brass-nickel plated
Sensing surface PBT
Cable PVC
Clamping nut Stainless steel Brass-nickel plated

Download Catalog: E2A3, Omron-Cylindrical Proximity Sensor


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