$ 201.94
SICK WTB250-2N2451 photoelectric sensor with background suppression offers precise object detection up to 1,000 mm for reliable industrial automation.
The SICK WTB250-2N2451 photoelectric sensor with background suppression is engineered for accurate object detection in compact industrial installations where reflective backgrounds can cause false switching. Using visible red LED light, it reliably detects targets within a working range of up to 1,000 mm while filtering out unwanted background signals. Its slim rectangular housing, combined with a durable IP67 enclosure, makes it suitable for demanding factory environments. This sensor is commonly applied in conveyor lines, packaging equipment, and automated handling systems that require stable, repeatable detection.
In practical automation use, the SICK WTB250-2N2451 improves process reliability by maintaining consistent detection even when object colors or background surfaces vary. The background suppression principle minimizes misdetection from shiny machine parts or moving structures behind the target. An adjustable sensitivity setting allows precise alignment to the application, supporting flexible machine design. Fast switching behavior enables use in high-throughput operations, while the robust construction ensures long service life and reduced maintenance in harsh industrial conditions.
Why SICK WTB250-2N2451?
The SICK WTB250-2N2451 stands out because it delivers precise object detection without being confused by background surfaces, reflections, or changing light conditions. Its compact form factor fits easily into tight machine layouts, while the adjustable sensing range allows fine control for different materials and distances. Designed for industrial reliability, it combines fast response, stable performance, and robust protection, making it a dependable choice for engineers who value accuracy, uptime, and long-term consistency in automated systems.
What problem does it solve?
The SICK WTB250-2N2451 addresses the common challenge of false switching in photoelectric sensing, especially in environments with reflective conveyors, metallic frames, or moving backgrounds. By suppressing background signals and focusing only on the target object, it ensures consistent detection even when object colors, shapes, or surface finishes vary. This reduces process interruptions, minimizes product counting errors, and improves overall machine efficiency in high-speed industrial operations.
| Feature | Details | Benefit |
|---|---|---|
| Sensing Principle | Photoelectric proximity sensor with background suppression | Reliable detection of target objects while ignoring reflective or moving backgrounds |
| Sensing Range | 200 mm to 1,000 mm | Flexible use across short to medium distances without changing sensor type |
| Light Source | Visible red LED | Easy alignment and stable detection on varied object surfaces |
| Optical Angle | Approx. 3° focus | High precision detection with reduced interference from adjacent objects |
| Switching Output | NPN | Wide compatibility with common industrial control systems |
| Switching Mode | Light / Dark switching (selectable) | Adaptable logic for different automation requirements |
| Response Time | ≤ 3 ms | Supports high-speed conveying and fast-moving production lines |
| Switching Frequency | 160 Hz | Consistent performance in dynamic industrial processes |
| Supply Voltage | 10 V DC to 30 V DC | Easy integration into standard industrial power architectures |
| Connection Type | M12 male connector, 4-pin (rotatable) | Quick installation and flexible cable routing |
| Adjustment Method | 2-turn potentiometer with position indicator | Fine sensitivity tuning for optimal detection accuracy |
| Housing Material | ABS plastic housing, PMMA optics | Lightweight yet durable for long-term industrial use |
| Protection Rating | IP67 | Reliable operation in dusty, humid, and washdown environments |
| Operating Temperature | –25 °C to +55 °C | Stable performance across a wide industrial temperature range |
| Mounting Support | Mounting bracket included | Faster installation and reduced setup effort |
Download SICK WTB250-2N2451 (6044689) Datasheet
| Commercial Data | Details |
|---|---|
| Weight | 133 g |
| Country of Origin | China |
In automated packaging lines, cartons often move quickly with metal rollers, guide rails, or frames positioned directly behind the product path. These reflective backgrounds can cause incorrect switching with conventional sensors. This sensor overcomes the issue by isolating the target from its surroundings using background suppression. Its narrow detection angle helps maintain accuracy even when cartons differ in color or surface texture. The fast response supports rapid conveyor speeds, ensuring reliable counting, spacing, and control signals. As a result, production flow remains stable, and downstream equipment operates without interruptions caused by false detections.
Assembly stations frequently require sensors to confirm the presence of small parts in tight mechanical spaces. Nearby tooling, fixtures, or shiny machine components can interfere with standard photoelectric sensing. This sensor is designed to detect only the intended part while ignoring surrounding structures. Sensitivity adjustment allows precise tuning for different component materials and sizes, making it suitable for flexible production lines. Consistent detection helps prevent missing parts, reduces assembly errors, and ensures machines only operate when components are correctly positioned, improving overall process reliability and reducing scrap.
Material handling and palletizing systems involve moving loads, lifting mechanisms, and structural elements that can confuse basic sensors. This sensor provides dependable detection by filtering out background movement and focusing solely on the target object. Its durable housing supports continuous use in industrial environments where dust and vibration are present. Stable detection improves load positioning and transfer accuracy, helping avoid misaligned stacks or handling faults. This contributes to smoother logistics operations, fewer handling errors, and improved safety in automated warehouses and distribution centers.
At the end of production lines, sensors are used to confirm product presence before sealing, labeling, or transfer. Variations in packaging materials, such as glossy film or mixed cardboard surfaces, can lead to unreliable detection. This sensor maintains consistent performance despite these variations by suppressing background reflections. The visible light simplifies setup and alignment, while adjustable range settings support different package formats. Reliable verification reduces the risk of empty or incomplete packages reaching customers, strengthening quality control and minimizing costly rework.
| Category | Model Name | Part Number | Benefits |
|---|---|---|---|
| Mounting Bracket | BEF-W250 | 5305850 | Dedicated mounting bracket for WTB250-2 sensors, ensuring stable installation and accurate alignment |
| Universal Clamp Plate | BEF-KHS-N11N | 2071081 | Stainless steel clamp solution for flexible mounting on frames, profiles, or machine structures |
| Sensor Cable (PVC) | YF2A14-050VB3XLEAX | 2096235 | 5 m unshielded M12 cable suitable for standard industrial environments and chemical-free zones |
| Sensor Cable (PUR, Halogen-Free) | YF2A14-050UB3XLEAX | 2095608 | Durable cable designed for drag chains, robotic movement, and exposure to oils and lubricants |
| Connector Terminal | STE-1204-G | 6009932 | M12 connector with screw terminals for secure field wiring and easy maintenance |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.
