1125534

Overview

The SICK WTD20E-W1145 is a block-shaped photoelectric proximity sensor from the DeltaPac series, designed for background suppression detection. It features a red light source and an NPN output type. The device operates within a detection range of 30 mm to 40 mm. It supports a maximum DC voltage of 30V and a maximum current of 100 mA. The unit includes a 2 m cable for electrical connection and holds an IP67 protection rating. Operating temperatures range from -40°C to +55°C. The housing is made of plastic, and the component is certified under CE and UL standards.

Feature Summary

• Background suppression technology ensures reliable object detection regardless of surface reflectivity or color variations.
• Compact block-style design facilitates integration into space-constrained industrial automation environments.
• Robust IP67-rated plastic housing provides resistance against dust ingress and water jets for harsh operational conditions.

Applications

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

Procurement Notes

Verify that the specific part number matches the required NPN output configuration and the 30-40 mm detection range. Confirm the presence of the integrated 2-meter cable and ensure compatibility with the system's 30V DC supply limit. Check for CE and UL certification requirements relevant to the installation region. Ensure environmental conditions remain within the specified -40°C to +55°C operating temperature range.

Selection Notes

Select this model when precise distance measurement via background suppression is necessary for small objects. The narrow 30-40 mm range suits applications requiring close-proximity sensing. The NPN output dictates compatibility with standard PLC inputs. Consider the fixed cable length during routing planning. The plastic construction offers cost-effectiveness compared to metal housings while maintaining adequate durability for general industrial use.

Part Context

This component belongs to the SICK DeltaPac series, which focuses on compact photoelectric sensors for diverse industrial tasks. The block style distinguishes it from cylindrical variants, offering different mounting profiles. Background suppression models in this series prioritize stability against varying target surfaces, making them suitable for complex material handling scenarios where contrast-based detection might fail.

FAQ

What is the primary detection principle used by this sensor?

It utilizes background suppression technology to detect objects within its specific range while ignoring the background.

Does this sensor support PNP output configurations?

No, the WTD20E-W1145 model is specifically configured with an NPN output type.