1086077

Overview

The SICK LE20-2621 is a retro-reflective photoelectric sensor designed for industrial automation. It features a PNP switching output and operates on DC 3-wire wiring. The device utilizes a red LED light source with a sensing range of up to 4 meters, depending on the reflector type. It includes an integrated electronic memory chip for data storage and offers IP67 ingress protection rating. The unit supports M12 connector connection types and is housed in a compact metric housing suitable for flush or non-flush installation.

Feature Summary

• Integrated electronic memory chip for parameter storage
• Retro-reflective detection principle
• PNP switching output configuration
• IP67 rated enclosure for harsh environments

Applications

• Automated packaging machinery
• Conveyor belt object detection
• Warehouse logistics sorting systems
• Industrial assembly line monitoring

Procurement Notes

Verify the specific suffix codes against official SICK documentation to ensure correct voltage, output type, and cable length specifications. Confirm that the required reflector model is included or ordered separately, as it is not part of the standard sensor package. Check for regional compliance certifications such as CE or UL if applicable to your deployment location.

Selection Notes

Select this model when a long-range retro-reflective solution is required for stable objects. Ensure the ambient light conditions do not exceed the sensor's specified interference immunity. Verify that the load current requirements of the connected PLC input are compatible with the PNP output capabilities of the sensor.

Part Context

This component belongs to the LE20 series of photoelectric sensors from SICK. The series is characterized by its compact design and high reliability in factory automation. It complements other sensors in the lineup by offering extended ranges compared to shorter-range diffuse models while maintaining a small form factor.

Replacement Considerations

Consult official SICK cross-reference guides for direct replacements. Generic substitutes may lack the integrated memory chip functionality or exact mounting dimensions. Verify electrical compatibility before swapping with older series models.