1059094

Overview

The SICK LE20-2621 is a retro-reflective photoelectric sensor designed for industrial automation. It features a rectangular housing with an M12 connector interface and operates on a DC 3-wire PNP output. The device utilizes a red LED light source with a wavelength of 650 nm, providing a maximum switching distance of 4 meters when used with standard reflectors. It includes integrated electronics for signal processing and offers protection against reverse polarity and short circuits.

Feature Summary

• Retro-reflective sensing principle for reliable object detection
• Integrated signal evaluation electronics for stable operation
• Robust plastic housing suitable for industrial environments

Applications

• Automated packaging machinery
• Conveyor belt monitoring systems
• Industrial safety gates and doors

Procurement Notes

Verify the specific suffix code to confirm cable length and connector type. Ensure the operating voltage matches the system supply. Confirm the required switching distance aligns with the application geometry. Check for compatibility with existing mounting brackets.

Selection Notes

Select based on the required switching distance and ambient light conditions. Consider the housing size constraints for installation space. Verify the output type (PNP/NPN) matches the PLC input requirements. Assess environmental factors such as temperature and potential interference sources.

Part Context

This model belongs to the LE20 series of photoelectric sensors from SICK. The series is characterized by compact dimensions and versatile mounting options. It is commonly used in applications requiring precise detection of objects at medium ranges.

Replacement Considerations

Check for direct part number replacements within the same product family. Verify pinout compatibility if substituting with different brands. Ensure mechanical dimensions allow for drop-in replacement without modifying mounting hardware.