1147615

Overview

The SICK LE20-2621 is a retro-reflective photoelectric sensor designed for industrial automation. It features a rectangular housing and utilizes red LED light technology with a wavelength of 650 nm. The device operates on a DC 3-wire connection with a supply voltage range of 10 to 30 VDC. It provides an NPN switching output with a maximum switching frequency of 2 kHz. The unit includes a potentiometer for sensitivity adjustment and offers IP67 ingress protection. The sensing range extends up to 6 meters when used with standard reflectors, ensuring reliable detection in various environments.

Feature Summary

• Utilizes retro-reflective principle for stable object detection
• Equipped with adjustable potentiometer for precise sensitivity tuning
• Features robust IP67 rated enclosure for harsh industrial conditions
• Provides NPN switching output compatible with standard PLC inputs

Applications

• Automated packaging machinery
• Conveyor belt monitoring systems
• Assembly line presence detection
• Warehouse logistics sorting equipment

Procurement Notes

Verify the specific cable length and connector type required for your installation, as these may vary by regional distribution channels. Confirm that the NPN open-collector output polarity matches your control system's input requirements. Ensure the operating environment temperature falls within the specified limits to maintain optimal sensor performance and longevity.

Selection Notes

Select this model when a cost-effective solution for long-range detection is required. It is suitable for applications where the target object reflects light efficiently. Consider the mounting space constraints due to the rectangular housing design. Verify compatibility with existing SICK reflectors to ensure maximum sensing distance is achieved.

Part Context

This component belongs to the LE20 series of photoelectric sensors from SICK. The series is characterized by compact dimensions and versatile mounting options. It serves as a fundamental sensing element in safety and non-safety industrial automation tasks. The model number indicates specific electrical and optical configurations within this product family.

Replacement Considerations

Direct replacements must match the NPN output type and 10-30 VDC supply range. Check pinout compatibility if replacing without adapters. Alternative models from the same manufacturer may offer digital interfaces or different light sources.