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E3FB-RP21 Photoelectric Sensor | Retro-Reflective Sensor | 4m Range | M12 Connector | IP67/IP69K

SKU: E3FB-RP21

Omron E3FB-RP21 photoelectric sensor with retro-reflective sensing, 4m long range, PNP output. M12 cylindrical sensor for reliable object detection in auto conveyor systems and industrial automation.

Key Features

  • Long 4m sensing range for monitoring conveyor belts and large areas
  • Retro-reflective sensing with polarizing filter for stable detection
  • IP67/IP69K protection for operation in harsh, washdown environments
  • M12 connector and compact design for easy installation and integration
  • Ideal for auto conveyor detection, material handling, and packaging systems

Long-Range Retro-Reflective Photoelectric Sensor for Conveyor Detection

The Omron E3FB-RP21 Photoelectric Sensor is engineered for reliable, long-range object detection in demanding industrial environments. Utilizing retro-reflective sensing technology, this sensor achieves a substantial 4-meter detection range, making it ideal for monitoring large conveyor systems, material transfer points, and automated production lines. Its red LED light source (624nm) ensures consistent performance, while the built-in polarizing filter effectively eliminates false triggers from reflective surfaces. The sensor's robust M12 cylindrical housing features IP67/IP69K protection, allowing it to withstand harsh conditions, including washdown applications. With a PNP open collector output, fast response time, and 10-30VDC power supply, the E3FB-RP21 provides a dependable solution for high-speed automation, package counting, and presence verification across an operating temperature range of -40°C to 55°C.

Technical Specifications

Sensing Method Retro-reflective (with polarizing filter)
Sensing Distance 4 m (with dedicated reflector)
Light Source Red LED (624 nm)
Power Supply 10 to 30 VDC
Output Type PNP open collector
Connection M12 connector
Response Time 1 ms max
Protection Rating IP67/IP69K
Operating Temperature -40 to 55°C