Omron E3S-DCN21 Color-mark Photoelectric Sensor

USD 226.36

Omron E3S-DCN21: NPN color-mark sensor with RGB LEDs, 10 ±3 mm sensing distance and M12 connector. Supply status not established.

SKU Omron-E3S-DCN21 Category
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Omron E3S-DCN21 Color-mark Photoelectric Sensor

BrandOmron
Model IdentifierE3S-DCN21
Official Part NumberE3S-DCN21

Technical Overview

The Omron E3S-DCN21 is a diffuse-reflective color-mark sensor with a 10 ±3 mm sensing distance, M12 connector and NPN output. The E3S-DC family uses RGB LEDs at 635, 525 and 465 nm for color-mark detection; the sensor operates from 10–30 V DC and is rated IP67.

NPN color-mark sensor with RGB LEDs, 10 ±3 mm sensing distance and M12 connector.

Key Features

  • Exact Omron model: E3S-DCN21
  • Diffuse-reflective color-mark detection
  • 10 ±3 mm sensing distance
  • RGB LEDs: 635, 525 and 465 nm
  • NPN output; 100 mA max.
  • 10–30 V DC supply
  • M12 4-pin connector (cable sold separately)
  • IP67 enclosure
  • Supply status: Unknown (not established by checked manufacturer source).

NPN color-mark sensor with RGB LEDs, 10 ±3 mm sensing distance and M12 connector.

Technical Specification Matrix

ParameterValue
Sensing methodDiffuse-reflective color-mark sensor
Sensing distance10 ±3 mm
Light sourceRGB LEDs: 635 nm red, 525 nm green, 465 nm blue
OutputNPN; 100 mA max.
Supply voltage10–30 VDC ±10%
Current consumption40 mA max. at 24 V
Response time50 μs (2-point teaching); 150 μs (1-point teaching)
ConnectionM12 4-pin connector; cable sold separately
ProtectionIP67
Physical Weight (kg)Approx. 0.320 kg sensor only (approx. 0.370 kg packed)
Dimensions L x W x H (cm)Refer to Omron model-specific outline drawing

Suggested applications

Engineering suggestions require suitability checks for your installation.

1. Printed-mark registration

Use the verified Omron product in a printed-mark registration station.

Potential use

Confirm the target, mounting, wiring, environmental conditions and controller interface against the machine design before commissioning.

RGB LED 10 ±3 mm NPN output

2. Packaging label position detection

Apply the Omron product to a packaging label position detection task.

Potential use

Validate operating margin on representative parts and follow the Omron installation and wiring documentation.

M12 IP67 High-speed response
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