$ 187.50
SICK WTB9-3N1111S14 photoelectric sensor with background suppression ensures accurate object detection, fast response, and stable performance in industrial automation.
The SICK WTB9-3N1111S14 photoelectric sensor with background suppression is a compact infrared proximity sensor engineered for precise object detection in confined industrial installations. It solves the common challenge of unreliable sensing caused by reflective backgrounds, variable object colors, or limited mounting space. By using background suppression technology, the sensor reliably detects targets within a controlled range while ignoring distant surfaces. Its slim rectangular housing, fast switching performance, and wide operating voltage make it well suited for modern automation systems where accuracy, stability, and space efficiency are critical.
The SICK WTB9-3N1111S14 delivers dependable detection even in applications where traditional photoelectric sensors struggle, such as glossy packaging, dark materials, or mixed product flows. The adjustable sensing range enables fine tuning during setup, ensuring consistent results across different production batches. Its rapid response supports high-speed conveyors and automated handling systems without missed detections. Designed for harsh industrial environments, the rugged enclosure maintains performance in dusty, humid, or washdown conditions, helping reduce false triggers, improve process reliability, and lower long-term maintenance costs.
The SICK WTB9-3N1111S14 is chosen when detection accuracy must remain stable despite changing object colors, reflective surfaces, or tight installation spaces. Its background suppression technology focuses on the actual target rather than reflected light intensity, making detection predictable and repeatable. The compact housing fits easily into dense machinery layouts, while fast response times support high-speed automation. Combined with industrial-grade environmental protection, this sensor offers long-term reliability, reduced setup time, and consistent performance in real production conditions where precision directly affects throughput and quality.
The SICK WTB9-3N1111S14 solves the issue of false triggering and inconsistent detection commonly seen with standard photoelectric sensors. In applications involving shiny packaging, dark materials, or nearby machine frames, traditional sensors may misread the background as the target. This model separates the object from its surroundings optically, ensuring only the intended item is detected. As a result, it minimizes production interruptions, reduces manual adjustments, and helps maintain smooth, automated workflows even in visually complex industrial environments.
| Feature | Details | Benefit |
|---|---|---|
| Detection Principle | Background suppression | Prevents false detection caused by reflective or distant backgrounds |
| Sensing Range | 20 mm to 400 mm (up to 800 mm max.) | Provides stable detection across varying object distances |
| Light Source | Infrared LED, 850 nm wavelength | Ensures reliable sensing regardless of object color or surface finish |
| Light Spot Size | Approx. Ø 40 mm at 400 mm distance | Improves detection stability for small or uneven objects |
| Adjustment Method | 5-turn potentiometer | Allows precise and repeatable sensing range setup |
| Switching Output | NPN, complementary, light/dark switching | Offers flexible integration with PLC and control systems |
| Response Time | < 2.5 ms | Supports high-speed automation and fast-moving conveyors |
| Switching Frequency | 200 Hz | Ensures consistent performance in dynamic applications |
| Supply Voltage | 10 V DC to 30 V DC | Compatible with standard industrial power systems |
| Current Consumption | Approx. 30 mA (no load) | Energy-efficient operation |
| Output Current | Up to 100 mA | Directly drives control inputs without additional interfaces |
| Connection Type | 4-wire cable, 2 m length | Simplifies installation and wiring |
| Housing Material | Plastic, VISTAL® | Durable construction for long service life |
| Enclosure Rating | IP66, IP67, IP69K | Reliable operation in dusty, wet, or washdown environments |
| Operating Temperature | –40 °C to +60 °C | Suitable for harsh industrial conditions |
| Mounting | M3 mounting hole, compact rectangular housing | Easy integration into space-limited machines |
| Weight | Approx. 80 g | Lightweight design reduces mechanical load |
Download SICK WTB9-3N1111S14 (1050948) Datasheet
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084186950 |
| Weight | 93.6 g |
| Country of Origin | Germany |
In automated packaging lines, products often vary in color, surface finish, and reflectivity, which can confuse conventional photoelectric sensors. The SICK WTB9-3N1111S14 is used to detect cartons, pouches, or trays moving at high conveyor speeds while ignoring belts and structural components behind them. Its background suppression technology isolates the actual product position, ensuring stable detection even with glossy or printed packaging. The fast response time supports precise triggering for labeling, counting, or sealing operations, helping manufacturers maintain output rates and reduce errors caused by missed or false detections.
Automated assembly processes rely on accurate confirmation that components are present before the next operation begins. The SICK WTB9-3N1111S14 is applied to detect small or mixed-material parts positioned close to fixtures or tooling. Background suppression prevents signals from reflecting off metallic jigs or mounting plates. Its compact design allows installation in narrow assembly spaces, and the adjustable sensing distance enables precise setup. This improves process reliability, reduces incorrect assembly sequences, and helps maintain consistent product quality without the need for complex inspection systems.
In intralogistics systems, items pass through transfer zones where rollers, rails, and frames are located close to the sensing area. The SICK WTB9-3N1111S14 is used to detect totes or parcels accurately while ignoring surrounding mechanical structures. Its rapid switching capability ensures reliable operation at varying conveyor speeds, enabling correct activation of diverters or sorters. The rugged housing supports continuous operation in dusty or vibration-prone environments, helping logistics facilities improve sorting accuracy and reduce downtime related to sensor misalignment or false triggering.
Industrial production areas often expose sensors to moisture, dust, and temperature changes that degrade performance over time. The SICK WTB9-3N1111S14 is applied for position monitoring of workpieces, carriers, or fixtures near machines. Its sealed housing supports reliable operation in washdown or contaminated areas, while background suppression minimizes interference from reflective machine surfaces. This ensures dependable position feedback for automation control, improves process stability, and lowers maintenance requirements in demanding manufacturing environments.
| Category | Model Name | Part Number | Benefits |
|---|---|---|---|
| Mounting Bracket | BEF-WN-W9-2 | 2022855 | Dedicated steel mounting bracket for W9-3 sensors, ensures stable alignment and quick installation |
| Universal Clamp Plate | BEF-KHS-N08 | 2051607 | Zinc-plated universal clamp system, suitable for flexible mounting on machine frames |
| Universal Clamp Plate (Stainless Steel) | BEF-KHS-N11N | 2071081 | Corrosion-resistant stainless steel version, ideal for washdown or hygienic environments |
| Connector / Cable | STE-1204-G | 6009932 | M12, 4-pin connector solution for reliable electrical connection to control systems |
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