1142421

Overview

The SICK model 1142421 is a WTB4-3P2161L05 block-shaped photoelectric sensor from the DeltaPac series. It utilizes background suppression technology for precise object detection within a range of 30 mm to 40 mm. The device features an NPN output and is equipped with a 5-meter cable for electrical connection. It operates on a maximum DC voltage of 30V with a maximum current of 100 mA. The sensor uses red light as its source and holds an IP67 protection rating, ensuring durability in industrial environments. Operating temperatures range from -40°C to +55°C, and it complies with CE and UL standards.

Feature Summary

• Background suppression functionality ensures accurate detection regardless of target surface properties or ambient lighting variations.
• Robust plastic housing provides high resistance to mechanical stress and environmental contaminants.
• Integrated 5-meter cable facilitates direct wiring without additional connectors.

Applications

• Automated assembly line monitoring
• Packaging machine object detection
• Conveyor belt sorting systems

Procurement Notes

Verify the specific suffix 'L05' confirms the 5-meter cable length, as variants exist with different cable lengths. Ensure the NPN output type matches your PLC input requirements. Confirm the operating voltage range aligns with your system's 24V DC supply. Check that the background suppression range suits your installation distance constraints.

Selection Notes

Select this model when fixed-distance detection is required independent of object color or reflectivity. The background suppression feature is critical for applications involving shiny or dark targets where through-beam sensors might fail. The compact block shape allows for tight mounting spaces compared to larger cylindrical sensors.

Part Context

This component belongs to the SICK DeltaPac series, designed for cost-effective automation tasks. It shares the same form factor and mounting dimensions as other WTB4 models but differs in optical parameters and output configuration. It is part of a broader family of block-shaped sensors offering various detection ranges and interface options.

Replacement Considerations

WTB4-3P2161L10 (10m cable variant)

FAQ

What is the difference between this model and the WTB4-3P2161L10?

The primary difference is the cable length; the 1142421 has a 5-meter cable, while the L10 variant has a 10-meter cable. All other technical specifications remain identical.

Can this sensor detect transparent objects?

Background suppression sensors like this one are generally optimized for opaque objects. Detection of transparent objects may be unreliable depending on the material's refractive index and thickness.