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E3FA-RN21 Photoelectric Sensor | Retro-Reflective Sensor | 2m Range | M12 Connector | IP67/IP69K

SKU: E3FA-RN21

Omron E3FA-RN21 retro-reflective photoelectric sensor with 2m sensing range and PNP output. Compact M12 sensor with reflector detection for reliable object sensing in automation.

Key Features

  • 2-meter sensing range with reflector for long-distance object detection
  • Retro-reflective sensing method for reliable detection of various objects
  • IP67/IP69K protection for operation in harsh and washdown environments
  • Fast 0.5 ms response time suitable for high-speed automation applications
  • Light-ON/Dark-ON selectable operation mode for application versatility

Compact Retro-Reflective Photoelectric Sensor with 2-Meter Range for Factory Automation

The Omron E3FA-RN21 Photoelectric Sensor provides reliable long-range object detection using retro-reflective sensing technology. This industrial-grade sensor offers a consistent 2-meter detection distance when paired with a compatible reflector, making it ideal for applications requiring extended sensing ranges. Featuring a red LED light source (624nm) and IP67/IP69K protection ratings, the E3FA-RN21 withstands harsh industrial environments, including washdown conditions common in food processing and packaging. With PNP open collector output and a standard M12 connector for quick installation, this sensor delivers fast 0.5ms response times for high-speed automation tasks in material handling, conveyor systems, and assembly lines. Operating on a 10-30VDC power supply with selectable Light-ON/Dark-ON modes, the E3FA-RN21 ensures flexible and stable performance across an operating temperature range of -40°C to 55°C.

Technical Specifications

Sensing Method Retro-reflective (with reflector)
Sensing Distance 2 m (with reflector)
Light Source Red LED (624 nm)
Power Supply 10 to 30 VDC
Output Type PNP open collector
Connection M12 connector
Response Time 0.5 ms max
Protection Rating IP67/IP69K
Operating Temperature -40 to 55°C