Why SICK WTB12-3N1011S42?
The SICK WTB12-3N1011S42 is chosen when precise, dependable short-range detection is non-negotiable. Its background suppression technology eliminates false switching caused by reflective machine parts or conveyor surfaces, delivering stable results without manual adjustment. Combined with a fast response, compact form factor, and industrial-grade metal housing, it offers a balance of accuracy, durability, and long-term reliability that automation engineers trust for critical sensing points.
What problem does it solve?
The SICK WTB12-3N1011S42 solves unreliable object detection in tight spaces where traditional sensors struggle with background reflections and inconsistent target surfaces. It ensures only objects within a defined distance are detected, preventing miscounts, machine stops, or quality defects. This improves process stability on high-speed lines, reduces troubleshooting time, and helps maintain consistent production output in demanding industrial environments.
Key Features & Specifications – SICK WTB12-3N1011S42: Part Number 1044101
| Feature | Details | Benefit |
|---|---|---|
| Sensor Type | Photoelectric proximity sensor | Enables reliable non-contact object detection in automated systems |
| Detection Principle | Background suppression | Prevents false switching caused by reflective or fixed backgrounds |
| Sensing Range | 20 mm to 150 mm (pre-set) | Ensures stable, repeatable detection without manual adjustment |
| Light Source | Infrared LED | Provides consistent performance across varying object colors and surfaces |
| Wavelength | 850 nm | Optimized for industrial environments with minimal ambient light interference |
| Output Type | NPN, light switching | Easy integration with standard PLC and control systems |
| Response Time | ≤ 330 µs | Supports fast-moving production lines and high-speed processes |
| Switching Frequency | Up to 1,500 Hz | Reliable detection in rapid, repetitive applications |
| Supply Voltage | 10 to 30 V DC | Flexible compatibility with common industrial power supplies |
| Output Current | Up to 100 mA | Directly drives control inputs without additional circuitry |
| Housing Material | Metal housing with PMMA front screen | High mechanical strength for long-term industrial use |
| Ingress Protection | IP66 / IP67 / IP69K | Suitable for washdown, dusty, and harsh environments |
| Operating Temperature | –40 °C to +60 °C | Stable operation in extreme temperature conditions |
| Connection Type | Cable with AMP connector, 320 mm | Secure and vibration-resistant electrical connection |
| Dimensions (W × H × D) | 15.6 × 48.5 × 42 mm | Compact design for tight installation spaces |
| Certifications | CE, UKCA, cULus, ECOLAB, RoHS | Meets global compliance and industry standards |
Commercial Information – SICK WTB12-3N1011S42
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084193927 |
| Weight | 145 g |
| Country of Origin | Hungary |
The Applications
1. Stable Object Detection on Compact Conveyor Lines
Compact conveyor systems often place sensors very close to frames, rollers, and metal guides, increasing the risk of false detection. The SICK WTB12-3N1011S42 performs reliably in these tight layouts by detecting only objects within its defined short-range window while ignoring nearby structural components. This allows accurate product counting, spacing control, and jam detection even when the conveyor surface is reflective. Its fast response supports higher belt speeds without signal loss, while the small housing simplifies installation in narrow spaces where mounting options are limited.
2. Reliable Part Presence Detection in Assembly Stations
Assembly stations frequently handle components with different colors, textures, and heights, which can confuse conventional sensors. The SICK WTB12-3N1011S42 maintains consistent detection by focusing on distance rather than surface appearance. It reliably confirms part presence before critical operations such as pressing, fastening, or welding. This prevents missing or misaligned components from entering the next process step. Its high switching frequency supports short cycle times, and the solid metal housing withstands vibration from tools and repeated mechanical impacts during daily production.
3. Accurate Product Positioning in Packaging Machinery
Packaging operations depend on precise detection to trigger sealing, labeling, or cutting actions at the correct moment. The SICK WTB12-3N1011S42 ensures accurate product positioning by ignoring background conveyor belts and machine elements. It detects products consistently even when packaging materials are glossy or printed. This improves timing accuracy on high-speed packaging lines and reduces rejects caused by misaligned operations. The sealed construction allows reliable performance in dusty or humid environments commonly found in packaging areas.
4. Consistent Detection in Washdown Food and Beverage Lines
Food and beverage production lines require sensors that remain reliable despite frequent cleaning and harsh conditions. The SICK WTB12-3N1011S42 is well suited for these environments due to its robust sealing and durable materials. It reliably detects containers, trays, or carriers even when water, foam, or cleaning chemicals are present. Background suppression prevents interference from stainless steel machine surfaces behind the product, helping maintain stable operation and reducing unexpected stoppages caused by sensor malfunction.
Related Products & Accessories
| Category | Model / Series | Part Number | Benefits |
|---|---|---|---|
| Mounting Accessory | BEF-WG-W12 | 2013942 | Stainless steel mounting bracket designed for W12 series sensors, ensuring stable alignment and secure installation in industrial environments |
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