SICK WTB27-3P2441 Photoelectric Proximity Sensor

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SICK WTB27-3P2441 Photoelectric Proximity Sensor (Order Number: 1027744)

Product Overview

The SICK WTB27-3P2441 is a compact, background – suppression photoelectric proximity sensor from SICK’s W27 – 3 series, designed for reliable long – range object detection in industrial automation. It is ideal for applications like logistics sorting, packaging machinery, and material handling systems, where accurate identification of objects of various sizes, colors, and surface textures is required while ignoring background interference. The sensor uses PinPoint technology with an intense visible red LED light source (660 nm wavelength), ensuring a consistent light spot for precise detection without the need for laser safety compliance. Its rectangular housing with an IP67 protection rating enables reliable operation in harsh industrial environments with dust, moisture, and temperature extremes. The WTB27-3P2441 is CE – certified and RoHS – compliant, featuring a potentiometer for easy sensing range adjustment and an M12 4 – pin connector for quick integration, making it a versatile and robust solution for diverse industrial detection tasks.

Main Functions

  1. Long – Range Background – Suppressed Detection: It can detect objects within 100 mm – 1100 mm (with a maximum adjustable range of 30 mm – 1100 mm for 90% diffuse reflectance white objects per DIN 5033), effectively ignoring background surfaces to prevent false triggers, which is suitable for applications with complex backgroundsSICK.
  2. Adjustable Sensing and Switching Modes: A potentiometer allows precise calibration of the sensing distance, and selectable light/dark switching modes can be easily adapted to different application logic requirements without complex programmingSICK.
  3. Complementary PNP Output: The PNP complementary output provides two switching signals (NO and NC), enabling flexible integration with various industrial control systems and simplifying circuit designSICK.
  4. Stable Sensing Performance: The PinPoint red LED delivers a consistent light spot (Ø 15 mm at 500 mm), ensuring reliable detection of multi – colored and textured objects, and it is resistant to ambient light, optical reflections, and crosstalk from other sensors.
  5. Robust Environmental Adaptability: With an IP67 protection rating and an operating temperature range of – 40 °C to + 60 °C, it can withstand harsh industrial conditions such as dust, water jets, and extreme temperature fluctuations.
  6. Easy Installation and Diagnostics: The M12 4 – pin connector enables fast electrical connection, and built – in green and yellow LEDs indicate power, output state, and light – receiving status, facilitating quick troubleshooting during operation and maintenanceSICK.

Technical Characteristics

Technical Parameter Specification
Sensor Type Compact photoelectric proximity sensor with background suppression
Sensing Principle Background – suppressed diffuse reflection (PinPoint technology)
Light Source Visible red LED, 660 nm wavelength
Sensing Range 100 mm – 1100 mm (90% diffuse reflectance, DIN 5033 standard white); adjustable 30 mm – 1100 mm
Light Spot Size Ø 15 mm (at 500 mm distance)
Response Time ≤ 1 ms
Switching Frequency 350 Hz
Output Type PNP complementary output (NO + NC)
Maximum Output Current ≤ 100 mA
Supply Voltage 10 V DC – 30 V DC
Current Consumption ≤ 35 mA
Protection Rating IP67 (per IEC 60529)
Operating Temperature – 40 °C to + 60 °C
Storage Temperature – 40 °C to + 70 °C
Connection Type M12, 4 – pin male connector
LED Service Life 100,000 hours (at + 25 °C ambient temperature)
Adjustment Method Potentiometer for sensing range calibration
Certifications CE, RoHS compliant
Protection Circuits Reverse polarity, short – circuit, and overvoltage protection

Product Dimensions and Weight

Parameter Metric Imperial
Overall Width 24.6 mm 0.97 in
Overall Height 80.6 mm 3.17 in
Overall Depth 54 mm 2.13 in
Housing Shape Rectangular (beam exit side) Rectangular (beam exit side)
Mounting Hole Diameter 5.2 mm 0.20 in
Net Weight (sensor only) 100 g 0.220 lbs
Gross Weight (with packaging) 130 g 0.287 lbs
Housing Material Robust plastic with PMMA optics Robust plastic with PMMA optics

Structural Highlights

  1. PinPoint LED Technology: The intense red LED provides a focused and consistent light spot, enabling precise detection of small objects and replacement of laser sensors in some cases without safety regulations.
  2. Precise Background Suppression: Advanced optical design eliminates scanning distance drift, ensuring stable detection regardless of background variations and preventing false triggers from irrelevant objects.
  3. User – Friendly Adjustment: The built – in potentiometer allows quick and precise calibration of the sensing range, adapting to different application requirements without complex setup.
  4. Secure Electrical Connection: The M12 4 – pin connector offers a vibration – resistant interface, reducing signal loss risks in high – motion industrial settings.
  5. Integrated Status Indicators: Green and yellow LEDs display power on, output state, and light – receiving status, enabling rapid diagnostics and minimizing downtime during maintenance.
  6. Durable and Compact Design: The 24.6 mm × 80.6 mm × 54 mm housing with reinforced mounting holes combines a small footprint with mechanical durability, suitable for space – constrained installations.
WHO WE ARE

About us

Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.

Atifts Technology Co., Ltd. @ 2024

Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers. Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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