1143885

Overview

The SICK part number 1143885 corresponds to the WTB270-2N2451, a block-type 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 powered by a red light source. Electrical specifications include a maximum DC voltage of 30V and a maximum current of 100 mA. It is equipped with a 2-meter cable for electrical connection and holds an IP67 protection rating. The unit operates between -40°C and +55°C, constructed with a plastic housing, and complies with CE and UL standards.

Feature Summary

• Background suppression capability ensures reliable detection regardless of target surface reflectivity or color variations.
• Compact block-style design facilitates integration into space-constrained machinery and automated systems.
• Robust construction provides resistance to environmental factors including dust, moisture, and mechanical stress.

Applications

• Detection of small components on conveyor belts, such as solar wafers or PCBs
• Positioning fixtures during robotic arm grasping operations
• Logistics sorting systems for pallet detection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct output type and cable length configuration. Confirm that the application environment remains within the specified temperature and voltage limits. Cross-reference the part number with the latest datasheet to validate compliance with current regional safety certifications before procurement.

Selection Notes

Select this model when precise distance-dependent detection is required independent of object color or material properties. The background suppression feature makes it suitable for applications involving highly reflective or transparent targets where standard diffuse sensors may fail. Ensure the mounting geometry allows for the specified detection range alignment.

Part Context

This component belongs to the SICK DeltaPac series, designed for industrial automation tasks requiring compact form factors. The series emphasizes high reliability and ease of integration into various machine architectures. Part number 1143885 specifically denotes the variant with NPN switching output and fixed cable attachment.

Replacement Considerations

Consult official SICK substitution guides for functional equivalents. Verify interface compatibility and detection range overlap before replacing existing units in established installations.