1136931

Overview

The SICK 1136931 is a WTB4-3P2131 photoelectric sensor, classified as a retroreflective unit. It operates using infrared light with a specified detection range of up to 6 meters. The device features an NPN output configured for dark-on or light-on switching modes. It is designed for industrial automation environments requiring reliable object presence detection.

Feature Summary

• Utilizes retroreflective sensing technology for consistent object detection
• Incorporates integrated evaluation electronics for signal processing
• Provides standard NPN switching output for PLC integration

Applications

• Automated assembly line monitoring
• Packaging machine safety interlocks
• Conveyor belt object detection

Procurement Notes

Verify the specific suffix codes against the manufacturer's current naming convention to ensure compatibility with existing control systems. Confirm that the NPN output polarity matches the input requirements of the target programmable logic controller. Check for any regional regulatory compliance markings required for the installation site.

Selection Notes

Select this model when a fixed-range retroreflective solution is required for standard industrial objects. Ensure the mounting bracket and reflector accessories are ordered separately if not included in the kit. Consider environmental factors such as ambient light interference when deploying in open areas.

Part Context

This component belongs to the WTB4 series of photoelectric sensors from SICK. The series is engineered for robust performance in factory automation settings. It represents a standard offering for general-purpose proximity and presence detection tasks.

Replacement Considerations

Consult the official SICK cross-reference guide for direct equivalents. Verify pinout compatibility before substituting with other retroreflective models.